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Briefs: Photonics/Optics
The figure schematically illustrates a prototype general-purpose, microprocessor-based sensor and control system in which power, data, and control signals are transmitted via optical...
Briefs: Photonics/Optics
An experimental study has been conducted to demonstrate the feasibility of using spectrally resolved Rayleigh scattering to nonintrusively measure the instantaneous properties of the...
Briefs: Photonics/Optics
Pulse shepherding is a nonlinear signal-propagation phenomenon that can occur when several pulses of light at different wavelengths are launched simultaneously or nearly simultaneously along the same...
Briefs: Software
Software for Processing SAR Images of the Polar Oceans
The RADARSAT/ERS-1,2 Geophysical Processor System (RGPS) is an automated system of hardware and software that processes synthetic-aperture-radar (SAR) images of ice and open water in polar oceans to generate higher-level geophysical-data products. Information in such products includes the age...
Briefs: Photonics/Optics
Program for Analysis of a Complex Optomechanical System
The IMOS computer program contains subprograms that, collectively, provide a unique capability for multidisciplinary analysis of a system represented by a combination of mathematical models of structural (mechanical), control, thermal, and optical characteristics. One example of such a system...
Briefs: Photonics/Optics
Thermal Lens Spectrometer Yields High Sensitivity
Thermal lens spectrometry is a highly sensitive method for detecting very small quantities of material by the absorption of light from a laser source. It takes advantage of the thermal lens effect to measure the absorption spectrum of a sample. This invention utilizes an optical parametric...
Briefs: Photonics/Optics
Cross-diffraction gratings have been proposed to provide optical coupling to quantum-well infrared photodetectors (QWIPs) in focal-plane arrays (FPAs). The cross-grating coupling scheme is...
Briefs: Electronics & Computers
Laser Doppler velocimetry (LDV) systems have been used for a number of years in field and laboratory applications. The normal LDV system consists of a two-color, four-beam...
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Webcasts
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SAE Automotive Engineering Podcast: Additive Manufacturing
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A New Approach to Manufacturing Machine Connectivity for the Air Force
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