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Title: Room-temperature quantum noise limited spectrometry and methods of the same

In one embodiment, a heterodyne detection system for detecting light includes a first input aperture adapted for receiving a first light from a scene input, a second input aperture adapted for receiving a second light from a local oscillator input, a broadband local oscillator adapted for providing the second light to the second input aperture, a dispersive element adapted for dispersing the first light and the second light, and a final condensing lens coupled to an infrared detector. The final condensing lens is adapted for concentrating incident light from a primary condensing lens onto the detector, and the detector is a square-law detector capable of sensing the frequency difference between the first light and the second light. More systems and methods for detecting light are disclosed according to more embodiments.
Inventors:
;
Issue Date:
OSTI Identifier:
1164682
Assignee:
Lawrence Livermore National Security, LLC. (Livermore, CA) LSO
Patent Number(s):
8,901,495
Application Number:
13/076,107
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2011 Mar 30
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 47 OTHER INSTRUMENTATION

Other works cited in this record:

Non-equilibrium modes of operation for infrared detectors
journal, September 1986

Monolithically integrated near-infrared and mid-infrared detector array for spectral imaging
journal, April 2007

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