Special Coverage

Iodine-Compatible Hall Effect Thruster
Precision Assembly of Systems on Surfaces (PASS)
Development of a Novel Electrospinning System with Automated Positioning and Control Software
2016 Create The Future Design Contest Open For Entries
Clamshell Sampler
Shape Memory Alloy Rock Splitter
Deployable Extra-Vehicular Activity Platform (DEVAP) for Planetary Surfaces
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Motion Blur Evaluation Techniques

These techniques model human sensitivity to moving spatial patterns to evaluate and improve display performance. Ames Research Center, Moffett Field, California Motion blur results when a moving edge travels across a display, such as a liquid crystal display (LCD), that has limited temporal response. It is important to be able to quantify this effect in visual terms. The techniques described in this work provide methods for estimating the strength of the motion blur artifact in perceptual units of JNDs (just noticeable differences).

Posted in: Briefs, Optics

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Illuminating Permanently Shadowed Lunar Regions Using a Solar Sail

NASA’s Jet Propulsion Laboratory, Pasadena, California Sunlight can be reflected into permanently shadowed regions (PSRs) using S/C solar sails in order to detect and confirm the presence and distribution of water ice cold-trapped in PSRs in lunar polar craters. This reflected light is then viewed with an optical spectrometer.

Posted in: Briefs, Optics

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Fiber Optic Connectors

Single Step Polishing After Laser Cleaving With the standardization of 4G wireless, the increase in cloud storage and computing, and the push for faster network data rates, the highest quality passive interconnect systems must be used. While the robustness and size of these interconnections, fiber types, and cable management all play major roles in the backbone, what happens at the tip of the connector also greatly affects the optical performance of the system.

Posted in: Briefs, Photonics

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Intelligent Photonic Multi-Sensor Solutions

With the Internet of Things (IoT) quickly rising in front of us, it would be easy to get caught in the trap of thinking that both the trajectory and applications will be somewhat predictable. While hindsight is 20/20, the future can be a little trickier to envision. We can likely all agree that when we saw the first brick-sized wireless telephone, it wasn’t hard to tap our creative problem solving to conclude that subsequent generations were going to get smaller, cheaper and generally “better”. But few people could have envisioned the “smartphone,” let alone Apple’s first edition iPhone. Fewer still looked from that first brick to an age of sensor-driven, cloud-connected apps in the palms of our hands.

Posted in: Application Briefs, Briefs, Photonics

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UV-VIS Micro-Spectrometer

Hamamatsu Corporation (Bridgewater, NJ) has announced the release of the C12666MA microspectrometer, a UV-VIS spectrometer about the size of a fingertip. Its miniature components, fabricated using MEMS (micro-electro-mechanical systems) technology, allow it to be a fraction of the size of traditional spectrometers. In addition, its hermetically sealed package makes it usable in high-humidity environments that traditional spectrometers do not tolerate well.

Posted in: Products, Photonics

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310 nm, sub 800 ps Picosecond Pulsed LED

Edinburgh Instruments (Livingston, UK) has released a 310 nm picosecond pulsed LED with a sub-800 picosecond typical pulse width. This LED is optimized for Time Correlated Single Photon Counting (TCSPC). The EPLED 310 is a compact, robust, maintenance free, fully integrated system supplied in a single package. It is pre-adjusted for an optimum pulse width of

Posted in: Products, Photonics

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UV-Visible-NIR Polarization Spectroscopy

CRAIC Technologies (San Dimas, CA) recently announced the addition of UV-visible-NIR polarization spectroscopy capabilities to CRAIC microspectrophotometers. This feature is offered as a package that allows the user to measure polarization spectra in either transmission or reflectance modes. With the ability to measure polarization microspectra™ in the ultraviolet, visible and near infrared regions, the UV-visible- NIR polarization package represents a powerful new tool for both materials science and biological research.

Posted in: Products, Photonics

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