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Title: Frequency-feedback cavity enhanced spectrometer

Abstract

A spectrometer comprising an optical cavity, a light source capable of producing light at one or more wavelengths transmitted by the cavity and with the light directed at the cavity, a detector and optics positioned to collect light transmitted by the cavity, feedback electronics causing oscillation of amplitude of the optical signal on the detector at a frequency that depends on cavity losses, and a sensor measuring the oscillation frequency to determine the cavity losses.

Inventors:
;
Issue Date:
Research Org.:
Southwest Sciences Incorporated, Santa Fe, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1210874
Patent Number(s):
9110006
Application Number:
14/309,495
Assignee:
Southwest Sciences Incorporated (Santa Fe, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
DOE Contract Number:  
SC0007534
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jun 19
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Hovde, David Christian, and Gomez, Anthony. Frequency-feedback cavity enhanced spectrometer. United States: N. p., 2015. Web.
Hovde, David Christian, & Gomez, Anthony. Frequency-feedback cavity enhanced spectrometer. United States.
Hovde, David Christian, and Gomez, Anthony. Tue . "Frequency-feedback cavity enhanced spectrometer". United States. https://www.osti.gov/servlets/purl/1210874.
@article{osti_1210874,
title = {Frequency-feedback cavity enhanced spectrometer},
author = {Hovde, David Christian and Gomez, Anthony},
abstractNote = {A spectrometer comprising an optical cavity, a light source capable of producing light at one or more wavelengths transmitted by the cavity and with the light directed at the cavity, a detector and optics positioned to collect light transmitted by the cavity, feedback electronics causing oscillation of amplitude of the optical signal on the detector at a frequency that depends on cavity losses, and a sensor measuring the oscillation frequency to determine the cavity losses.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {8}
}

Patent:

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Works referenced in this record:

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CO 2 monitoring and detection using an integrating sphere as a multipass absorption cell
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Sensitive measurement of photon lifetime and true reflectances in an optical cavity by a phase-shift method
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Detection of Nitrogen Dioxide by Cavity Attenuated Phase Shift Spectroscopy
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Gas cells for tunable diode laser absorption spectroscopy employing optical diffusers. Part 2: Integrating spheres
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An historical overview of cavity-enhanced methods
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Evanescent wave cavity ring-down spectroscopy with a total-internal-reflection minicavity
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Single-cell detection by cavity ring-down spectroscopy
journal, January 2004


Cavity-enhanced frequency modulation spectroscopy: advancing optical detection sensitivity and laser frequency stabilization
conference, May 1998