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A new whispering-gallery microcavity could lead to new and more powerful computers that run faster and at cooler temperatures. The optical diode was created at Washington University in St. Louis, where researchers coupled two microresonators using parity-time symmetry onto a silicon chip. These resonators were positioned to allow light to flow from one to the other.
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Opto Mechanical Integration
B-Con Engineering
B-Con has earned its reputation in aerospace optics because of its depth of experience in the fields of laser systems integration, optical design and fabrication.
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Refractive Index
M3 Measurement Solutions
M3 provides refractive index testing. Sample configurations include a minimum deviation prism for high accuracy or a round diameter wedge for reduced manufacturing.
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InGaAs Photodiodes
Fermionics Opto-Technology
Fermionics manufactures InGaAs photodiodes for data, voice, and video communications, large- area photodiodes for instrumentation & sensing applications, and linear and digital arrays.
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Semiconductor Manipulates IR Light
A nanostructure-embedded semiconductor that manipulates light in the IR/terahertz range could benefit applications from imaging to energy efficiency, telecommunications and more.
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In this edition of the industry's premier weekly newscast: Light-activated neurons restore paralyzed muscles, a semiconductor manipulates infrared light, and scientists propose growing biofuel crops on photovoltaic farms.
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WHITE PAPER
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The Measurement of High Optical Densities (up to 8 Abs) in the Near-Infrared
Agilent Technologies, Inc.
The optical densities of various materials used in the manufacture of laser safety eyewear have been determined in the NIR. The lens materials were measured over wavelength ranges corresponding to the laser wavelengths for which the eyewear was designed (InGaAs, 980 nm and Nd:YAG, 1064 nm). Prior to measurement, a variety of filters of known optical density were used to validate the photometric performance of the spectrophotometer. Using the addition of filters technique, photometric range, accuracy and linearity were demonstrated up to 8 Absorbance units at 1200 nm in the near-infrared.
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WEBINAR
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Microscopy Light Sources
Tuesday, April 22, 2014 1:00 PM - 2:00 PM EDT
FREE WEBINAR
Dr. Aaron Slepkov
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In this webinar, Aaron Slepkov, PhD, will describe the key features of coherent anti-Stokes Raman scattering (CARS) microscopy, and will outline the light sources used in its various experimental implementations.
Dr. Slepkov is faculty in the department of Physics & Astronomy at Trent University, where he holds a Canada Research Chair in the Physics of Biomaterials. His research interests include nonlinear optics and photonics, broadband laser microscopy, and materials biophysics.
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SPIE DSS 2014 brings together some of the industry's most important scientific conferences and exhibitions on optics, IR imaging, lasers and sensing for defense, security, industry, healthcare and the environment.
Session topics to be featured include hyperspectral imaging, imagery and pattern analysis, next-generation sensors and systems, and terahertz device and systems, as well as laser technologies, mine and chemical detection, and instrumentation and control.
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FEATURED VIDEO
AdTech Optics – DFB QCL 783
The DFB QCL 783 is a single-mode, high-power quantum cascade laser at 7.83 µm for high-sensitivity detection of critical greenhouse gases. The laser is capable of 280-mW continuous output power at room temperature in a single mode and with an excellent beam quality, at a wavelength previously unattainable with a semiconductor device. It allows parts-per-billion-level detection of methane and nitrous oxide for applications such as pollution monitoring and emissions control, among others.
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