Briefs: Photonics/Optics
Recirculation of Laser Power in an Atomic Fountain

A new technique for laser-cooling atoms in a cesium atomic fountain frequency standard relies on recirculation of laser light through the atom-collection region of the fountain. The recirculation, accomplished by means of reflections from multiple fixed beam-splitter cubes, is such that each of...

Briefs: Photonics/Optics

A simplified method of generating a beam of light having a relatively high value of angular momentum (see figure) involves the use of a compact apparatus consisting mainly of a...

Briefs: Photonics/Optics

Two interferometric quantum-nondemolition (QND) devices have been proposed: (1) a polarization-independent device and (2) a polarization-preserving device. The...

Briefs: Photonics/Optics
Ring-Down Spectroscopy for Characterizing a CW Raman Laser

A relatively simple technique for characterizing an all-resonant intracavity continuous- wave (CW) solid-state Raman laser involves the use of ring-down spectroscopy. As used here, “characterizing” signifies determining such parameters as threshold pump power, Raman gain, conversion...

Products: Photonics/Optics

Intense, Ltd. (Glasgow, UK) released Hermes™, a family of High Power Laser (HPL) products. Included are single emitters, bars, conductively and micro-channel cooled bars, and stacks. The...

Products: Materials

Patterned dichroic filters from Deposition Sciences, Inc. (Santa Rosa, CA) operate over a wide range of wavelengths, from near ultraviolet to infrared. Able to be applied in a variety of substrates in multiple shapes and...

Products: Photonics/Optics

Laser Design (Minneapolis, MN) released the SLP-2000 3D laser-scanning probe with an extra-long-laser line (8") and standard dual CMOS receptors. The device captures 50,000 to 75,000 points per second. The probe is...

Products: Photonics/Optics

The P-2000 multi-option polarimeter from JASCO (Easton, MD) is designed to be customizable with options to handle a researcher’s initial requirements and then upgraded at a later date. The unit can operate via a PC with...

Products: Photonics/Optics

The 2D Image Simulation feature in CODE V® 9.7 from Optical Research Associates (Pasadena, CA) allows users to visualize overall performance and communicate design tradeoffs to non-optical personnel. The function displays...

Products: Photonics/Optics

The model 642 Extreme Ultraviolet (EUV) light source from McPherson, Inc. (Chelmsford, MA) utilizes a filament to produce electrons that are accelerated toward a target by high voltage. It is stable, debris-free, and...

Products: Photonics/Optics

Cincinnati Inc. (Cincinnati, OH) introduced the CL-707 high-speed, super-size laser with interchangeable 8 × 20' cutting tables. The linear motor drive delivers 10,000 ipm head positioning. The 5 kW power of the cutting...

Products: Photonics/Optics

OPTEK Technology (Carrollton, TX) offers the OPF670 series of fiber optic LED transmitters for integration into data communications equipment. The series consists of the OPF670 in a TO-46 package, the OPF672 in a standard...

Products: Photonics/Optics

Liekki (Lohja, Finland) has released square and rectangular optical fibers for high-power delivery applications. Square- and rectangular-shaped fibers more closely match optical sources. Different combinations —...

Products: Photonics/Optics

The TLS Series of software-controlled (Windows®) wavelength tunable light sources from Optometrics Corp. (Ayer, MA) can be used for detector sensitivity testing, color matching, and characterization, as well as...

Blog
Clean Water Technology

University of Delaware researchers have developed an inexpensive, nonchlorine- based technology that can remove harmful microorganisms, including viruses, from drinking water. The patented technology incorporates highly reactive iron in the filtering process to deliver a chemical "knock-out punch" to a host of notorious...

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TECH NEEDS OF THE WEEK

Small, universal mobile receivers are needed that are capable of receiving mobile satellite television signals. These receivers should be similar to those installed and used by satellite radio. The receivers will convert the signal from a satellite to a mounted or OEM satellite, thus delivering cable television to mobile...

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Engine For Satellites

Georgia Tech researchers have developed a new protoype engine that uses up to 40% less fuel by running on solar power while in space and by fine-tuning exhaust velocity.

The key to the engine improvements is the ability to optimize the use of available power. A traditional chemical rocket engine (attached to a...

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NANO 50â„¢ AWARDS -DEADLINE EXTENSION

Nanotech Briefs(R) magazine is now accepting nominations for its third annual Nano 50 awards competition. The Nano 50 recognizes the top 50

technologies, innovators, and products with the greatest potential to advance the commercialization of nanotechnology.

There is no cost to submit a...

Blog
Natural-Gas Autos

Researchers have created carbon briquettes with complex nanopores capable of storing natural gas at a density of 180 times their own volume and at one- seventh the pressure of conventional natural gas tanks. The briquettes are the first technology to meet the 180 to 1 storage to volume target set by the U.S. Department of...

Blog
Disposable Sensor

Researchers at the University of Illinois at Urbana-Champaign have developed a disposable sensor for detecting hazardous uranium ions, with sensitivity that rivals the performance of much more sophisticated laboratory instruments.According to the researchers, the sensor provides a fast, on-site test for assessing uranium...

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Tech Needs

A fluorescent coating is needed to alter emitted wavelength from UV LEDs.

The goal of this project is to create a white light source with a uniform spectral output. Due to size and power constraints, LEDs are the preferred light source.

To respond to this Tech Need, click here.

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NASA NEWS

According to a recent report based on some of the first observations by NASA's Mars Reconnaissance Orbiter, fluids that flowed through cracks penetrating underground rock on ancient Mars may have produced conditions to support possible habitats for microbial life.

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Robotic Exoskeleton

Researchers at the University of Michigan (U-M, Ann Arbor, MI) developed a robotic exoskeleton controlled by the wearer's own nervous system that could help users regain limb function. Healthy subjects first wore the exoskeleton to measure how the device affected ankle function before researchers tested the device on disabled...

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Viral Traps

Biologists at Yale University (New Haven, CT) are developing a process to trap viruses in habitats that force their extinction. Viruses are chemically lured into the wrong cells, thus preventing virus reproduction and alleviating disease. The research was conducted on phi-6 virus populations in environments containing different...

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TECHNOLOGIES OF THE WEEK

Three families of liquid-crystal polyester are available that can be used in the form of shaped articles, and can be prepared from the melt phase by extrusion, injection molding, compression molding, or other convenient means.

View this technology here.

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Analog Circuits

Engineers at Massachusetts Institute of Technology (MIT) have devised new analog circuits that will not drain power or create bottlenecks like previous models. The new class of analog circuits eliminates operational amplifiers while maintaining virtually all benefits of operational-amplifier-based circuits. The MIT circuits...

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Steering Unit

Case New Holland (CNH, Amsterdam, the Netherlands) has lessened the level of steering noise in the cabs of its 821 Case brand and LW190 brand wheel loaders by utilizing Char-Lynn Series 20 steering control unit from Eaton Hydraulics (Eden Prairie, MN). The cab noise issue was great enough to hold the assembly line while the matter...

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Moth Gyroscopes

A joint effort between University of Washington (Seattle, WA) and Case Western Reserve University (Cleveland, OH) researchers has revealed gyroscope-like structures in tobacco horn moth antennae that could lead to mechanical equivalents for miniature flying robots. The discovery allows the researchers to understand neural...

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Nano 50â„¢ Awards

Nanotech Briefs magazine is now accepting nominations for its third annual Nano 50 awards competition. The Nano 50 recognizes the top 50 technologies, innovators, and products with the greatest potential to advance the commercialization of nanotechnology.

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