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VOLUME PHASE GRATINGS

Photonics Spectra
Aug 2004
Wasatch Photonics Inc.Request Info
 
Applications for Wasatch Photonics' advanced volume phase holography grating components include fingerprint identification, head-up displays, hyperspectral imaging, biochemical sensing with Raman spectroscopy and lidar. These athermal, rugged, lightweight devices can split light into individual wavelengths, enabling high-performance telecommunications. They perform multiple optical functions and offer wide bandwidths, high efficiency and polarization insensitivity with high angular dispersion. The company says they won't scratch and are easy to handle.


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GLOSSARY
hyperspectral imaging
Methods for identifying and mapping materials through spectroscopic remote sensing. Also called imaging spectroscopy; ultraspectral imaging.
lidar
An acronym of light detection and ranging, describing systems that use a light beam in place of conventional microwave beams for atmospheric monitoring, tracking and detection functions. Ladar, an acronym of laser detection and ranging, uses laser light for detection of speed, altitude, direction and range; it is often called laser radar.
Raman spectroscopy
That branch of spectroscopy concerned with Raman spectra and used to provide a means of studying pure rotational, pure vibrational and rotation-vibration energy changes in the ground level of molecules. Raman spectroscopy is dependent on the collision of incident light quanta with the molecule, inducing the molecule to undergo the change.  
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