Jayanta K Guha
age ~76
from West Hills, CA
- Also known as:
-
- Jayanta Kumar Guha
- Jay K Guha
- Sarmila Guha
- Guha K Jayanta
- A Guha
- Phone and address:
- 20930 Hackney St, Woodland Hills, CA 91304
Jayanta Guha Phones & Addresses
- 20930 Hackney St, Canoga Park, CA 91304
- West Hills, CA
- Manhattan Beach, CA
- Palmdale, CA
- Glendale, CA
- Northridge, CA
- West Hills, CA
Us Patents
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Very Low Absorption, Low Efficiency Laser Beamsampler
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US Patent:42818940, Aug 4, 1981
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Filed:Jan 21, 1980
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Appl. No.:6/113443
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Inventors:Jayanta K. Guha - Canoga Park CA
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Assignee:The Perkin-Elmer Corporation - Norwalk CT
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International Classification:G02B 518
G02B 508 -
US Classification:350162R
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Abstract:A very low absorption beamsampler for diffracting a very small fraction of a laser beam while specularly reflecting substantially all of the main beam with minimal absorption. The beamsampler comprises a plane mirror surface coated with a high-reflectivity multilayer dielectric coating, the topmost dielectric of which is grooved into a grating and coated with a transparent dielectric having a refractive index very similar, but not the same, as the grooved layer to form a weak phase grating for diffracting a weak first order sampling beam.
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Jayanta Guha
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Jayanta Guha
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