NDLI: Broadband optical radiation detector

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Broadband optical radiation detector

Content Provider	NASA Technical Reports Server (NTRS)
Author	Hong, S. D. Gupta, A.
Copyright Year	1981
Description	A method and apparatus for detecting optical radiation by optically monitoring temperature changes in a microvolume caused by absorption of the optical radiation to be detected is described. More specifically, a thermal lens forming material is provided which has first and second opposite, substantially parallel surfaces. A reflective coating is formed on the first surface, and a radiation absorbing coating is formed on the reflective coating. Chopped, incoming optical radiation to be detected is directed to irradiate a small portion of the radiation absorbing coating. Heat generated in this small area is conducted to the lens forming material through the reflective coating, thereby raising the temperature of a small portion of the lens forming material and causing a thermal lens to be formed therein.
File Size	796663
Page Count	11
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19830011326
Archival Resource Key	ark:/13960/t3130px48
Language	English
Publisher Date	1981-04-14
Access Restriction	Open
Subject Keyword	Optics Infrared Detectors Radiation Absorption Light Beams Radiation Detectors Broadband Collimation Antireflection Coatings Beam Splitters Lenses Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Patent

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