Global to push GA events into
skip to main content

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 configured to receive first light from a scene input, a second input aperture configured to receive second light from a local oscillator input, a broadband local oscillator configured to provide the second light to the second input aperture, a dispersive element configured to disperse the first light and the second light, and a final condensing lens coupled to an infrared detector. The final condensing lens is configured to concentrate incident light from a primary condensing lens onto the infrared detector, and the infrared 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 described according to other embodiments.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1280871
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
Patent Number(s):
9,404,801
Application Number:
14/331,193
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2014 Jul 14
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

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

Similar records in DOepatents and OSTI.GOV collections: