Features

Freezing for Survival

The James Webb Space Telescope (JWST) will have to survive the mechanically stressing conditions of launch, and the telescope and scientific instruments will have to survive the thermal shrinkage that occurs when cooling down from room temperature to the cryogenic temperatures at which they operate. This is a significant engineering challenge because the JWST and its instruments operate at extremely cold temperatures, but they are built at room temperature.

Posted in: UpFront

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3D-Printed Functional Antenna Arrays Operate on Exterior of COSMIC-2 Satellites

FDM® (Fused Deposition Modeling™) technology and ULTEM 9085 thermoplastic Stratasys Direct Manufacturing (RedEye, Solid Concepts, and Harvest Technologies) Eden Prairie, MN 866-882-6934 www.redeyeondemand.com In 2006, a satellite mission called the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC-1) was put into orbit. The purpose of the instrument was to collect global ionospheric and atmospheric data of temperature, moisture, and pressure, including hard-to-sample areas such as above oceans and polar regions. The project was led by the University Corporation for Atmospheric Research (UCAR), a consortium of more than 70 research universities in the US, and Meteorological Society of the Republic of China (Taiwan). Since its inception, the COSMIC-1 project has contributed to a wide range of scientific investigations and improvements in weather forecasting.

Posted in: Application Briefs

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Product of the Month: May 2015

Sensirion, Westlake Village, CA, introduced a gas sensor that, according to the company, is the first in the world to be based on multi-pixel technology. This allows the sensor to perceive its surroundings using various receptors that, with the help of intelligent algorithms and pattern recognition, are able to detect the type and concentration of gases. The single sensor is capable of detecting and distinguishing between different gases. It measures 2.45 × 2.45 × 0.75 mm, and can be integrated anywhere. Using the sensor, mobile devices will be able to sense their surroundings in order to measure indoor air quality, determine the alcohol content of a person’s breath, or recognize smells. For Free Info Visit http://info.hotims.com/55589-120

Posted in: Products

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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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