November 2008

Briefs : Electronics & Computers
Digital Phase Meter for a Laser Heterodyne Interferometer

The figure depicts two digital waveforms and a block diagram of a digital phase meter for measuring the difference between their phases. This digital phase meter is being developed for incorporation into a laser heterodyne interferometer in a metrological apparatus, but could also be...

Briefs : Electronics & Computers
Advanced Precipitation Radar Antenna To Measure Rainfall From Space

To support NASA's planned 20-year mission to provide sustained global precipitation measurement (EOS-9 Global Precipitation Measurement (GPM)), a deployable antenna has been explored with an inflatable thin- membrane structure. This design uses a 5.3×5.3-m inflatable...

Briefs : Electronics & Computers
Vision System Measures Motions of Robot and External Objects

A prototype of an advanced robotic vision system both (1) measures its own motion with respect to a stationary background and (2) detects other moving objects and estimates their motions, all by use of visual cues. Like some prior robotic and other optoelectronic vision systems, this...

Briefs : Electronics & Computers
Wide-Band Radar for Measuring Thickness of Sea Ice

A wide-band penetrating radar system for measuring the thickness of sea ice is under development. The need for this or a similar system arises as follows: Spatial and temporal variations in the thickness of sea ice are important indicators of heat fluxes between the ocean and atmosphere and,...

Briefs : Electronics & Computers
L-Band Transmit/Receive Module for Phase-Stable Array Antennas

Interferometric synthetic aperture radar (InSAR) has been shown to provide very sensitive measurements of surface deformation and displacement on the order of 1 cm. Future systematic measurements of surface deformation will require this capability over very large areas (300 km) from...

Briefs : Electronics & Computers
Microwave Power Combiner/Switch Utilizing a Faraday Rotator

A proposed device for combining or switching electromagnetic beams would have three ports, would not contain any moving parts, and would be switchable among three operating states:

Briefs : Electronics & Computers
Compact Low-Loss Planar Magic-T

This design allows broadband power combining with high isolation between the H port and E port, and achieves a lower insertion loss than any other broadband planar magic-T. Passive micro wave/millimeter-wave signal power is combined both in-phase and out-of-phase at the ports, with the phase error being less than...

Briefs : Electronics & Computers
Next Generation Flight Controller Trainer System

The Next Generation Flight Controller Trainer (NGFCT) is a relatively inexpensive system of hardware and software that provides high- fidelity training for space-shuttle flight controllers. NGFCT provides simulations into which are integrated the behaviors of emulated space-shuttle vehicle onboard...

Briefs : Electronics & Computers
Quasi-Optical Transmission Line for 94-GHz Radar

A quasi-optical transmission line (QOTL) has been developed as a low-loss transmission line for a spaceborne cloud-observing radar instrument that operates at a nominal frequency of 94 GHz. This QOTL could also readily be redesigned for use in terrestrial millimeter- wave radar systems and...

Briefs : Electronics & Computers
Using Pipelined XNOR Logic to Reduce SEU Risks in State Machines

Single-event upsets (SEUs) pose great threats to avionic systems' state machine control logic, which are frequently used to control sequence of events and to qualify protocols. The risks of SEUs manifest in two ways: (a) the state machine's state information is changed, causing the...

Briefs : Semiconductors & ICs
Vertical Isolation for Photodiodes in CMOS Imagers

In a proposed improvement in complementary metal oxide/semi con ductor (CMOS) image detectors, two additional implants in each pixel would effect vertical isolation between the metal oxide/ semiconductor field-effect transistors (MOSFETs) and the photodiode of the pixel. This improvement is...

Briefs : Information Technology
Converting From DDOR SASF to APF

A computer program called “ddor_sasf2apf” converts delta-door (delta differential one-way range) request from an SASF (spacecraft activity sequence file) format to an APF (apgen plan file) format for use in the Mars Reconnaissance Orbiter (MRO) mission-planning-and- sequencing process. The APF is used as an...

Briefs : Information Technology
Converting From CVF to AAF

A computer program called “dsn config converter” automates what had been a manual process for updating the multi-mission adaptation file (multi.aaf) used by a multiple- mission- command- sequence- generating process comprised of a combination of the AUTOGEN and APGEN programs mentioned in the immediately preceding...

Briefs : Information Technology
Documenting AUTOGEN and APGEN Model Files

A computer program called “autogen hypertext map generator” satisfies a need for documenting and assisting in visualization of, and navigation through, model files used in the AUTOGEN and APGEN software mentioned in the two immediately preceding articles. This program parses autogen script files,...

Briefs : Information Technology
Sequence History Update Tool

The Sequence History Update Tool performs Web-based sequence statistics archiving for Mars Reconnaissance Orbiter (MRO). Using a single UNIX command, the software takes advantage of sequencing conventions to automatically extract the needed statistics from multiple files. This information is then used to populate a...

Briefs : Software
Extraction and Analysis of Display Data

The Display Audit Suite is an integrated package of software tools that partly automates the detection of Portable Computer System (PCS) Display errors. [PCS is a laptop computer used onboard the International Space Station (ISS).] The need for automation stems from the large quantity of PCS displays...

Briefs : Information Technology
MRO DKF Post-Processing Tool

This software tool saves time and reduces risk by automating two labor-intensive and error- prone post-processing steps required for every DKF [DSN (Deep Space Network) Keyword File] that MRO (Mars Reconnaissance Orbiter) produces, and is being extended to post-process the corresponding TSOE (Text Sequence Of Events)...

Briefs : Software
Rig Diagnostic Tools

Rig Diagnostic Tools is a suite of applications designed to allow an operator to monitor the status and health of complex networked systems using a unique interface between Java applications and UNIX scripts. The suite consists of Java applications, C scripts, VxWorks applications, UNIX utilities, C programs, and...

Briefs : Information Technology
MRO Sequence Checking Tool

The MRO Sequence Checking Tool program, mro_check, automates significant portions of the MRO (Mars Reconnaissance Orbiter) sequence checking procedure. Though MRO has similar checks to the ODY's (Mars Odyssey) Mega Check tool, the checks needed for MRO are unique to the MRO spacecraft.

Briefs : Information Technology
Science Activity Planner for the MER Mission

The Maestro Science Activity Planner is a computer program that assists human users in planning operations of the Mars Explorer Rover (MER) mission and visualizing scientific data returned from the MER rovers. Relative to its predecessors, this program is more powerful and easier to use. This program...

Briefs : Information Technology
UAVSAR Flight-Planning System

A system of software partly automates planning of a flight of the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) — a polarimetric synthetic-aperture radar system aboard an unpiloted or minimally piloted airplane. The software constructs a flight plan that specifies not only the intended flight...

Briefs : Manufacturing & Prototyping
Templates for Deposition of Microscopic Pointed Structures

Templates for fabricating sharply pointed microscopic peaks arranged in nearly regular planar arrays can be fabricated by a relatively inexpensive technique that has recently been demonstrated. Depending on the intended application, a semiconducting, insulating, or metallic film could be...

Briefs : Materials
Quench Crucibles Reinforced With Metal

Improved crucibles consisting mainly of metal-reinforced ceramic ampules have been developed for use in experiments in which material specimens are heated in the crucibles to various high temperatures, then quenched by, for example, plunging the crucibles into water at room temperature. A quench crucible of...

Briefs : Materials
Adjustable Membrane Mirrors Incorporating G-Elastomers

Lightweight, flexible, large-aperture mirrors of a type being developed for use in outer space have unimorph structures that enable precise adjustment of their surface figures. A mirror of this type includes a reflective membrane layer bonded with an electrostrictive grafted elastomer...

Briefs : Materials
High-Temperature Crystal-Growth Cartridge Tubes Made by VPS

Cartridge tubes for use in a crystal-growth furnace at temperatures as high as 1,600°C have been fabricated by vacuum plasma spraying (VPS). These cartridges consist mainly of an alloy of 60 weight percent molybdenum with 40 weight percent rhenium, made from molybdenum powder coated...

Briefs : Materials
Hall-Effect Thruster Utilizing Bismuth as Propellant

A laboratory-model Hall-effect spacecraft thruster was developed that utilizes bismuth as the propellant. Xenon was used in most prior Hall-effect thrusters. Bismuth is an attractive alternative because it has a larger atomic mass, a larger electron- impact- ionization cross-section, and is...

Briefs : Materials
Coated Glass for Transparent Heating Elements

Applying an electric current to specially coated glass results in radiant heat energy. This process creates a transparent heating element with near- uniform surface temperatures. Manufacturing the heating element requires an ordinary pane of float glass. A fluorine-doped tin oxide coating (SnO2:F)...

Briefs : Mechanical & Fluid Systems
Deep-Sea Hydrothermal-Vent Sampler

An apparatus is being developed for sampling water for signs of microbial life in an ocean hydrothermal vent at a depth of as much as 6.5 km. Heretofore, evidence of microbial life in deep-sea hydrothermal vents has been elusive and difficult to validate. Because of the extreme conditions in these environments...

Briefs : Mechanical & Fluid Systems
Mars Rocket Propulsion System

A report discusses the methane and carbon monoxide/LOX (McLOx) rocket for ascent from Mars as well as other critical space propulsion tasks. The system offers a specific impulse over 370 s — roughly 50 s higher than existing space-storable bio- propellants. Current Mars in-situ propellant production (ISPP)...

Briefs : Mechanical & Fluid Systems
Two-Stage Passive Vibration Isolator

The design and testing of a structural system were implemented to hold the optics of the planned Space Interferometry Mission (SIM) at positions and orientations characterized by vibrational translation and rotation errors of no more than a few nanometers or a few milliarcseconds, respectively. Much of the...

Briefs : Physical Sciences
Altimetry Using GPS-Reflection/Occultation Interferometry

A Global Positioning System (GPS)- reflection/occultation interferometry was examined as a means of altimetry of water and ice surfaces in polar regions. In GPS- reflection/occultation interferometry, a GPS receiver aboard a satellite in a low orbit around the Earth is used to determine...

Briefs : Mechanical & Fluid Systems
Improved Thermal Design of a Compression Mold

A compression tool used to make 1-in. (2.5-cm) diameter disks of high-temperature polymers was designed to be shorter and of larger diameter than conventional tools to reduce heat loss to the surrounding air, thus making more efficient use of applied heat. This system is less sensitive to the amount...

Briefs : Mechanical & Fluid Systems
Enhanced Pseudo-Waypoint Guidance for Spacecraft Maneuvers

An enhanced version of the scheme reported in “Pseudo-Waypoint Guidance for Proximity Spacecraft Maneuvers” (NPO-42753), NASA Tech Briefs, Vol. 31, No. 6 (June 2007), page 73 was developed. To recapitulate: the scheme provides algorithms for guidance and control (G&C) of a...

Briefs : Physical Sciences
Thermally Driven Josephson Effect

A concept is proposed of the thermally driven Josephson effect in superfluid helium. Heretofore, the Josephson effect in a superfluid has been recognized as an oscillatory flow that arises in response to a steady pressure difference between two superfluid reservoirs separated by an array of submicron-sized...

Briefs : Physical Sciences
Determining Concentration of Nanoparticles From Ellipsometry

A method of using ellipsometry or polarization analysis of light in total internal reflection of a surface to determine the number density of gold nanoparticles on a smooth substrate has been developed. The method can be modified to enable determination of densities of sparse...

Briefs : Physical Sciences
Gold Nanoparticle Labels Amplify Ellipsometric Signals

The ellipsometric method reported in the immediately preceding article was developed in conjunction with a method of using gold nanoparticles as labels on biomolecules that one seeks to detect. The purpose of the labeling is to exploit the optical properties of the gold nanoparticles in...

Briefs : Physical Sciences
Perturbation Effects on a Supercritical C₇H₁₆/N₂ Mixing Layer

This report presents a computational-simulation study of effects of perturbation wavelengths and initial Reynolds numbers on the transition to turbulence of a heptane/nitrogen mixing layer at supercritical pressure. The governing equations for the simulations were the same as...

Briefs : Information Technology
Schema for Spacecraft-Command Dictionary

An Extensible Markup Language (XML) schema was developed as a means of defining and describing a structure for capturing spacecraft command-definition and tracking information in a single location in a form readable by both engineers and software used to generate software for flight and ground systems. A...

Briefs : Information Technology
Self-Adjusting Hash Tables for Embedded Flight Applications

A common practice in computer science to associate a value with a key is to use a class of algorithms called a hash-table. These algorithms enable rapid storage and retrieval of values based upon a key. This approach assumes that many keys will need to be stored immediately. A new set...

Briefs : Information Technology
Efficient Algorithm for Rectangular Spiral Search

An algorithm generates grid coordinates for a computationally efficient spiral search pattern covering an uncertain rectangular area spanned by a coordinate grid. The algorithm does not require that the grid be fixed; the algorithm can search indefinitely, expanding the grid and spiral, as...

Briefs : Information Technology
Algorithm-Based Fault Tolerance Integrated With Replication

In a proposed approach to programming and utilization of commercial off-the-shelf computing equipment, a combination of algorithm-based fault tolerance (ABFT) and replication would be utilized to obtain high degrees of fault tolerance without incurring excessive costs. The basic idea of...

Briefs : Information Technology
Targeting and Localization for Mars Rover Operations

A design and a partially developed application framework were presented for improving localization and targeting for surface spacecraft. The program has value for the Mars Science Laboratory mission, and has been delivered to support the Mars Exploration Rovers as part of the latest version of...

Briefs : Information Technology
Terrain-Adaptive Navigation Architecture

A navigation system designed for a Mars rover has been designed to deal with rough terrain and/or potential slip when evaluating and executing paths. The system also can be used for any off-road, autonomous vehicles. The system uses more sophisticated terrain analysis, but also converges to computational...

Briefs : Electronics & Computers
Combined GMSK Communications and PN Ranging

A document discusses a method by which GMSK (Gaussian minimum shift keying) modulation and a pseudonoise (PN) ranging signal may be combined. By isolating the in-phase and quadrature components after carrier lock, and extracting their low-pass and band-pass filtered components, there is enough...

Briefs : Electronics & Computers
Network-Attached Solid-State Recorder Architecture

A document discusses placing memory modules on the high-speed serial interconnect, which is used by a spacecraft’s computer elements for inter-processor communications, to allow all multiple computer system architectures to access the spacecraft data storage at the same time. Each memory board...

Briefs : Electronics & Computers
System-Level Integration of Mass Memory

A report discusses integrating multiple memory modules on the high-speed serial interconnect (IEEE 1393) that is used by a spacecraft’s inter-module communications in order to ease data congestion and provide for a scalable, strong, flexible system that can meet new system-level mass memory...

Briefs : Information Technology
An Efficient Reachability Analysis Algorithm

A document discusses a new algorithm for generating higher-order dependencies for diagnostic and sensor placement analysis when a system is described with a causal modeling framework. This innovation will be used in diagnostic and sensor optimization and analysis tools. Fault detection, diagnosis, and...

Briefs : Materials
Method of Cross-Linking Aerogels Using a One-Pot Reaction Scheme

A document discusses a new, simplified method for cross-linking silica and other oxide aerogels, with a polymeric material to increase strength of such materials without adversely affecting porosity or low density. The usual process is long and arduous, requiring multiple washing...

Articles : Software
Industry Update: Analysis & Simulation Software

In our annual poll of executives at leading analysis and simulation software companies, we posed questions dealing with virtual prototyping, multiphysics, the roles of the designer and analyst, and how software vendors are helping their customers remain competitive. Here’s what they had to say...

Briefs : Physical Sciences
Phase Matching of Diverse Modes in a WGM Resonator

Phase matching of diverse electromagnetic modes (specifically, coexisting optical and microwave modes) in a whispering-gallery-mode (WGM) resonator has been predicted theoretically and verified experimentally. Such phase matching is necessary for storage of microwave/terahertz and optical...

Briefs : Physical Sciences
Microwave-to-Optical Conversion in WGM Resonators

Microwave-to-optical frequency converters based on whispering-gallery-mode (WGM) resonators have been proposed as mixers for the input ends of microwave receivers in which, downstream of the input ends, signals would be processed photonically. A frequency converter as proposed (see figure) would...

Briefs : Physical Sciences
Wide-Band Microwave Receivers Using Photonic Processing

In wide-band microwave receivers of a type now undergoing development, the incoming microwave signals are electronically preamplified, then frequency-up-converted to optical signals that are processed photonically before being detected. This approach differs from the traditional approach,...

Application Briefs : Sensors/Data Acquisition
Position Sensors Help Cameras Focus on Mars
Hall Effect position sensors
Micropac Industries
Garland, TX
972-272-3571
www.micropac.com

Micropac’s hermetic Hall Effect devices are being used by Alliance Spacesystems, LLC and Malin Space Science Systems in camera mechanisms on the Mars Science Laboratory (MSL)...

Application Briefs : Aerospace
Devices Execute Critical Separations for Phoenix Lander
Devices Execute Critical Separations for Phoenix Lander
Hi-Shear separation devices
Hi-Shear Technology Corp.
Torrance, CA
310-326-8110
www.hi-shear.com

Hi-Shear separation nuts and pressure cartridges...

Devices Execute Critical Separations for Phoenix Lander
Briefs : Physical Sciences
WGM Resonators for Terahertz-to-Optical Frequency Conversion

Progress has been made toward solving some practical problems in the implementation of terahertz-to-optical frequency converters utilizing whispering-gallery-mode (WGM) resonators. Such frequency converters are expected to be essential parts of non-cryogenic terahertz-radiation...

Briefs : Physical Sciences
Temperature Sensors Based on WGM Optical Resonators

A proposed technique for measuring temperature would exploit differences between the temperature dependences of the frequencies of two different electromagnetic modes of a whispering-gallery-mode (WGM) optical resonator. An apparatus based on this technique was originally intended to be part of...

NASA Tech Needs
Energy Storage Technology to Power the Future in Space Exploration

NASA is focused on building a human outpost on the lunar surface. To reach this goal, there is a critical need to develop energy storage technologies to power the future lunar outpost. In particular, technology is required for outpost power generation for the lunar lander that...

Products
ATEasy 7.0

Geotest - Marvin Test Systems, Irvine, CA, has introduced ATEasy 7.0, the latest version of its application development framework for functional test, automated test equipment (ATE), data acquisition, process control, and instrumentation systems. It provides the tools to develop, deploy, and maintain software components including...

Who's Who
Robert W. Moorehead, Director of Space Flight Systems, John H. Glenn Research Center

Robert W. Moorehead served as NASA’s chief investigator for the Space Shuttle Challenger accident in 1986 and managed the Space Station Freedom program from 1989 to 1993. He has also held the title of NASA’s Chief Engineer, developing system architectures...

Briefs : Physical Sciences
Four-Pass Coupler for Laser-Diode-Pumped Solid-State Laser

A four-pass optical coupler affords increased (in comparison with related prior two-pass optical couplers) utilization of light generated by a laser diode in side pumping of a solid-state laser slab. The original application for which this coupler was conceived involves a neodymium-...

Briefs : Physical Sciences
Varying the Divergence of Multiple Parallel Laser Beams

A provision for controlled variation of the divergence of a laser beam or of multiple parallel laser beams has been incorporated into the design of a conceptual free-space optical-communication station from which the transmitted laser beam(s) would be launched via a telescope. The original...

Briefs : Physical Sciences
Low-Resolution Raman-Spectroscopy Combustion Thermometry

A method of optical thermometry, now undergoing development, involves low-resolution measurement of the spectrum of spontaneous Raman scattering (SRS) from N2 and O2 molecules. The method is especially suitable for measuring temperatures in high-pressure combustion...

Techs for License
Catalytic Filters for Outdoor Power Equipment

NoxFox™ Catalytic Filters reduce harmful emissions from engine exhaust with performance comparable to existing catalytic converters. High-surface-area ceramic nanofibers hold nanoparticles of platinum, palladium, rhodium, and other catalysts, so that NoxFox catalytic filters are comparatively...

Techs for License
Password Protection System Requires No Special Hardware

The High-Security Password System takes the place of strong passwords on digital devices and online services, yet is easy to remember and quick to enter for most individuals. This system places images in a two- or three-dimensional matrix to generate the equivalent of a ten-digit number....

NASA Tech Needs
Anti-Itch Non-Steroidal

A company is seeking technology (synthetic actives, natural actives, delivery systems) to eliminate itch for a variety of indications for over-the-counter applications; specifically, actives and/or delivery systems that will relieve itching. The technology should eliminate itching for a significant period of time (i.e....

NASA Tech Needs
Converting High-Molecular-Weight Polymer Emulsions Into Dry Form

A company that supplies chemicals, including inverse emulsions that consist of a very high- molecular-weight, water-soluble polymer dispersed in a continuous oil phase, is seeking technologies that can convert these emulsions to powdered form without losing any of the polymer...

Articles : Electronics & Computers
Using RFID to Protect System Firmware

Breeching the security of safety- or security-intensive products such as auto parts, set top boxes, military electronics, or smart batteries can be a lucrative business that is well worth the nominal investment required to create lookalike packaging and labeling, or to change the system firmware to allow...

Articles : Electronics & Computers
Board Versus Box: The Age-Old DAQ Dilemma

Since the beginning of PC-based data acquisition and control in the 1980s, one question has remained a constant consideration for all who would specify a new DAQ system. Is this application better served by an external I/O "box" connected to the PC via some communications link, or an internal "board"...

Articles : Electronics & Computers
Adopting Aerospace Development and Verification Standards for Software

An ever-increasing reliance on software control has meant that many companies from non-aerospace business sectors (automotive, nuclear power, MRI scanners, financial systems) that do not have a traditional requirement for sophisticated software development processes now find...

Application Briefs : Electronics & Computers
Seven Practical Steps for Designing Networking Enclosures

The design of enclosures to house networking servers and components should be guided by one overriding concern — heat. Servers, in particular, generate a great deal of heat, so an enclosure must be capable of dissipating that heat to ensure that the components deliver their expected...

Products : Electronics & Computers
VME NAS RAID Blade

ACT/Technico (Warminster, PA) now offers the VME RAIDStor, a single-slot 6U network attached storage (NAS) blade that provides the same automatic, transparent data replication and re-sync of traditional box-level RAID storage modules in a more compact footprint. With network access for up to 18 slots (up to 1/2 terabyte per...

Products : Electronics & Computers
Ultra-Wide Input DC-DC Converters

Aimtec (Montreal, Canada) has introduced the 2 watt AM2GW-NZ series of ultra wide input (4:1) DC-DC switching power supplies with operating temperature range of -40°C to + 85°C. Versatile, single and dual output modules are available in input ranges of 9-36V and 18-72V with I/O isolation of 1500VDC...

Products : Electronics & Computers
32-bit Microcontrollers

Renesas Technology (San Jose, CA) has introduced the SH7262 and SH7264 series of high-performance SuperH® 32-bit microcontrollers (MCUs) with 1Mbyte of on-chip SRAM. The 144MHz devices are highly integrated and optimized for digital audio systems, MP3 media player accessories, and graphical display systems, such as...

Products : Electronics & Computers
Network Analysis Software

OMICRON Lab (Houston, TX) has released new operation software for its Bode 100 portable network analyzer, giving users access to an extended frequency range. With the release of Bode Analyzer Suite V2.2, OMICRON Lab has managed to reduce the lower frequency border down to 1 Hz, giving the Bode 100 a range of 1 Hz...

Products : Electronics & Computers
Software Radio PMC Modules

Pentek, Inc. (Upper Saddle River, NJ) has introduced its Model 7151 high-performance, high-resolution software radio module. Four 200 MHz 16-bit A/D converters feed a proprietary FPGA IP core that delivers 256 channels of digital down conversion. The Model 7151 is particularly well suited for GSM cell-phone monitoring...

Products : Electronics & Computers
Compact Embedded Computer

Mercury Computer Systems (Chelmsford, MA) has introduced the PowerBlock™ 50 system, a high-performance, ultra-compact embedded computer. The system's modular architecture allows for flexible configurations of multiple processors, delivering well over 100 GFLOPS of processing power in a small, lightweight package....

Products : Electronics & Computers
Ethernet Protocol Analyzer

Absolute Analysis (Newbury Park, CA) has released a 10Gbps Ethernet protocol analyzer employing a SFP+ (Small Form-Factor Pluggable) interface and support for the 10GBase-LRM (Long Reach Multimode) standard. The 10Gbps SFP+ test solution provides developers with the capability to connect up to 16 ports in a single...

Articles : Photonics/Optics
Simultaneous Ultra Fast Framing and Streak Imaging

The ability to record simultaneous framing images and streak images has long been a requirement in the research fields of detonation, electrical discharge, biomedical and many other applications. Early systems incorporating both framing and streak cameras used external beam splitting optics with...

Application Briefs : Photonics/Optics
Tactile Feedback for Touch-input Devices

As products become more featurerich, manufacturers are looking at ways to improve the human-computer interface (HCI). Touchscreens, with intuitive operation and software flexibility, and screen-printed touch surfaces, with refined aesthetics and better sealing, have become extremely popular. But what...

Briefs : Photonics/Optics
Phase Matching of Diverse Modes in a WGM Resonator

Phase matching of diverse electromagnetic modes (specifically, coexisting optical and microwave modes) in a whispering-gallery-mode (WGM) resonator has been predicted theoretically and verified experimentally. Such phase matching is necessary for storage of microwave/terahertz and optical...

Briefs : Photonics/Optics
Microwave-to-Optical Conversion in WGM Resonators

Microwave-to-optical frequency converters based on whispering-gallery-mode (WGM) resonators have been proposed as mixers for the input ends of microwave receivers in which, downstream of the input ends, signals would be processed photonically. A frequency converter as proposed (see figure) would...

Briefs : Photonics/Optics
Wide-Band Microwave Receivers Using Photonic Processing

In wide-band microwave receivers of a type now undergoing development, the incoming microwave signals are electronically preamplified, then frequency-up-converted to optical signals that are processed photonically before being detected. This approach differs from the traditional approach,...

Briefs : Photonics/Optics
WGM Resonators for Terahertz-to-Optical Frequency Conversion

Progress has been made toward solving some practical problems in the implementation of terahertz-to-optical frequency converters utilizing whispering-gallery-mode (WGM) resonators. Such frequency converters are expected to be essential parts of non-cryogenic terahertz-radiation...

Briefs : Photonics/Optics
Temperature Sensors Based on WGM Optical Resonators

A proposed technique for measuring temperature would exploit differences between the temperature dependences of the frequencies of two different electromagnetic modes of a whispering-gallery-mode (WGM) optical resonator. An apparatus based on this technique was originally intended to be part of...

Briefs : Photonics/Optics
Four-Pass Coupler for Laser-Diode-Pumped Solid-State Laser

A four-pass optical coupler affords increased (in comparison with related prior two-pass optical couplers) utilization of light generated by a laser diode in side pumping of a solid-state laser slab. The original application for which this coupler was conceived involves a neodymium-doped...

Briefs : Photonics/Optics
Varying the Divergence of Multiple Parallel Laser Beams

A provision for controlled variation of the divergence of a laser beam or of multiple parallel laser beams has been incorporated into the design of a conceptual free-space optical-communication station from which the transmitted laser beam(s) would be launched via a telescope. The original...

Products
DUV-VIS Light Source

The EQ-1000 LDLSTM Laser-Driven Light Source from Energetiq Technology, Inc. (Woburn, MA) achieves extreme high brightness and power over a broad spectral range, from 170nm to beyond visible. The EQ-1000 can be configured for broad spectrum output in spectroscopy, optics testing, biological imaging, and...

Products
LED Backlighting

DDP (El Segundo, CA) has designed an LED backlighting solution that is compliant with night vision imaging system (NVIS) devices for aviation and military applications. The assembly uses two SMT LEDs to create a 28VDC PCB array that offers a true NVIS compatible Green Class A light source. The color combination provides the...

Products
Ti:Sapphire Oscillator

High Q Laser (Bregenz, Austria) has released a femtosecond light source for multi-photon microscopy. The “femtoTRAIN IMAGING” is a compact, all-in-one, all-diode-pumped, Ti:Sapphire oscillator. The “femtoTRAIN IMAGING” offers light pulses with a duration of 100 fs at an average power of 200 mW. Its pulse width is...

Products
Glass Molding Press

The Glass Press (GP) from Dyna Technologies Inc. (Sanford, FL) is a fully enclosed, compact press designed for precision compression molding of optical elements. Applications include manufacturing of aspheric lenses, microfluidics, and array lenses. The press incorporates a vacuum and inert gas purging system for controlled...

Products
Optical Tweezing Fiber Laser

Manlight (Lannion, France) and RPMC (O’Fallon, MO) have released a new fiber based OTS (Optical Tweezing Source) that features a narrow linewidth. The new OTS is a compact CW fiber laser that delivers output powers up to 20W with a near diffraction limited beam (M2

Products
Multi-Wavelength Laser Combiner

Agilent Technologies Inc., (Santa Clara, CA) offers a Multi-Wavelength Laser Combiner for microscopy applications. Developed to work with laser-based tools, the laser combiner is ideal for applications including epifluorescence, laser scanning confocal, and flow cytometry. The combiner provides 19 wavelength...

Products
Optical Design Software

Lambda Research (Littleton, MA) introduces TracePro 5.0 software for optical modeling, design and analysis. TracePro 5.0 allows users to combine multiple light sources with various wavelength spectrums in one TracePro model and analyze numerous light source interactions in the same ray trace. A user-defined, customized...

Products
Design and Analysis Software

LightTools® 6.1 illumination design and analysis software from Optical Research Associates (ORA) (Pasadena, CA) is suitable for the design of sophisticated luminaires, LEDs, and displays. The Ray Path feature makes it easy to identify exactly what system elements are contributing to light loss, scatter,...

Products
Transparent Conductive Coatings

Deposition Sciences, Inc. (DSI) (Santa Rosa, CA) offers transparent conductive coatings for use in the visible and near-infrared (NIR) spectral ranges. The transparent coatings are compatible with DSI’s dichroic filter technology. This technology yields high performance, highly uniform, transparent conductive...

Products
Optical Engineering Software

Photon Engineering (Tucson, AZ) has released version 7.50.0 of its optical engineering software FRED 7.x series. FRED is an advanced 3D CAD optical engineering software program capable of simulating the propagation of light through most optical/illumination systems. The new version features enhancements to FRED’s...

Products
High-Power Light Engines

The Enfis QUATTRO Mini from AMS Technologies (Martinsreid, Germany) provides a very high-power spot source with up to 160W of power in a 2 × 2 cm array. The RGBA version with additional amber LED chip offers an extra-large color gamut versus conventional RGB color mixing technology. The RGBW model provides RGB color...

Products
Wireless Accelerometer

CyberOptics Semiconductor (Beaverton, OR) introduces its WaferSenseTM Auto Vibration System (AVS) that monitors three-axis accelerations and equipment vibration. The WaferSense AVS is a wireless, wafer-like accelerometer available in a 200mm or 300mm format that moves through semiconductor process equipment and...

Products
Light Metrology Software

Labsphere (North Sutton, NH) offers the MtrX-SPEC light metrology software module with user friendly spectrometer calibration and control for spectral characterization such as flux, color, intensity, and irradiance. The MtrX-SPEC calibrates Labsphere’s spectrometers and analyzes spectral radiometric, photometric, and...

Products
NIR/SWIR Cameras for Unmanned Vehicles

Sensors Unlimited, Inc. (Princeton, NJ) offers the KT series of NIR/SWIR cameras for UAV and UGV (unmanned aerial and ground vehicle) applications. The cameras feature the night vision and laser detection capability that images from the near infrared (NIR) to the shortwave infrared (SWIR) portion of the...

Products
Ruggedized Lenses

Resolve Optics Ltd (Chesham, UK) has produced ruggedized lenses to meet specified environmental tests such as Def Stan 00-35, which includes vibration, shock, and bump testing over a temperature range of -40° to +70° C. Lens optical coatings can be applied to meet a range of MIL Spec standards (including MIL-C-14806,...

Products
Thermal Imaging Camera

OptoTherm (Sewickley, PA) has released the Infrasight RD320 thermal imaging camera. This camera utilizes a 320×240 uncooled detector array with <0.05°C sensitivity, and 16 bit digital Camera Link interface. The measurement temperature range is 0°C to 300°C. The camera captures and displays images at a rate of 30...

Products
Near IR Joulemeters and Radiometers

The deltΔ NIR Joulemeter from Spectrum Detector (Lake Oswego, OR) provides near-IR spectral response from 0.9 to 1.7 um. The deltΔ probe plugs into an analog power module (APM) to mate with oscilloscopes and lock-in amplifiers, or plugs into a digital USB-based electronic module (DPM) to create a complete PC...

Products
16 Channel Framing Camera

Specialised Imaging Ltd (Hertfordshire, UK) has introduced a 16 channel camera capable of capturing images at 200,000,000 frames per second with gating down to 5ns. Applications for ultra high speed multiple framing cameras include material studies, automotive, aerospace, high voltage electrical discharge research,...

Products
LED Driver Modules

ROHM Electronics (San Diego, CA) introduces AC/DC-isolated LED driver modules that utilize constant-current circuits optimized for driving LEDs. The BP58xx series integrates all required LED-driving control circuits, switching elements, isolation transformers, and constant-current circuits into a single SIP package. The LED...

Products
Chip-On-Board Illuminance Sensor

Hamamatsu Corporation (Bridgewater, NJ) has introduced a chip-on-board-type illuminance sensor called the S10604. The RoHS-compliant sensor is ideal as an energy-saving sensor for large-screen TV brightness control, as a backlight dimmer in liquid-crystal displays on cell phones, and in other applications where...

Products
Condensation Cured Silicone

A two part, condensation cured liquid silicone system called Master Sil 150 has been developed by Master Bond, Inc (Hackensack, NJ). It can be used for the potting and encapsulation of voltage regulators, high voltage transformers, as well as optical and electronic assemblies. Master Sil 150 has good thermal...

Products
CMOS High-Speed Camera

QZEO (San Diego, CA) has introduced a compact CMOS high-speed camera called EoSens® CL, with 500 fps at 1280(H) × 1024(V) resolution. EoSens® CL has a photo-sensitivity of 2500 ISO/ASA, which is 16 times higher than the standard photo-sensitivity of cameras in this product sector. With up to 500 frames per second at...