Frequency-feedback cavity enhanced spectrometer

Hovde, David Christian; Gomez, Anthony

Frequency-feedback cavity enhanced spectrometer

Patent · 18 August 2015

OSTI ID:1210874

Hovde, David Christian; Gomez, Anthony

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.

Research Organization:: Southwest Sciences Incorporated, Santa Fe, NM (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: SC0007534

Assignee:: Southwest Sciences Incorporated (Santa Fe, NM)

Patent Number(s):: 9,110,006

Application Number:: 14/309,495

OSTI ID:: 1210874

Country of Publication:: United States

Language:: English

References (12)

Cavity-locked ring-down spectroscopy Paldus, B. A.; Harb, C. C.; Spence, T. G. Journal of Applied Physics, Vol. 83, Issue 8 https://doi.org/10.1063/1.367155	journal	April 1998
Single-cell detection by cavity ring-down spectroscopy Tarsa, Peter B.; Wist, Aislyn D.; Rabinowitz, Paul Applied Physics Letters, Vol. 85, Issue 19 https://doi.org/10.1063/1.1819520	journal	January 2004
Evanescent wave cavity ring-down spectroscopy with a total-internal-reflection minicavity Pipino, Andrew C. R.; Hudgens, Jeffrey W.; Huie, Robert E. Review of Scientific Instruments, Vol. 68, Issue 8, p. 2978-2989 https://doi.org/10.1063/1.1148230	journal	August 1997
CO ₂ monitoring and detection using an integrating sphere as a multipass absorption cell Hawe, E.; Chambers, P.; Fitzpatrick, C. Measurement Science and Technology, Vol. 18, Issue 10 https://doi.org/10.1088/0957-0233/18/10/S21	journal	September 2007
Cavity-Ringdown Spectroscopy, Copyright, Advisory Board, Foreword Busch, Kenneth W.; Busch, Marianna A. ACS Symposium Series https://doi.org/10.1021/bk-1999-0720.fw001	book	April 1999
Sensitive measurement of photon lifetime and true reflectances in an optical cavity by a phase-shift method Herbelin, J. M.; McKay, J. A.; Kwok, M. A. Applied Optics, Vol. 19, Issue 1 https://doi.org/10.1364/AO.19.000144	journal	January 1980
An historical overview of cavity-enhanced methods Paldus, Barbara A.; Kachanov, Alexander A. Canadian Journal of Physics, Vol. 83, Issue 10 https://doi.org/10.1139/p05-054	journal	October 2005
Gas cells for tunable diode laser absorption spectroscopy employing optical diffusers. Part 2: Integrating spheres Masiyano, D.; Hodgkinson, J.; Tatam, R. P. Applied Physics B, Vol. 100, Issue 2 https://doi.org/10.1007/s00340-010-4021-y	journal	April 2010
Optical–feedback cavity–enhanced absorption: a compact spectrometer for real–time measurement of atmospheric methane Romanini, D.; Chenevier, M.; Kassi, S. Applied Physics B, Vol. 83, Issue 4 https://doi.org/10.1007/s00340-006-2177-2	journal	April 2006
Phase shift cavity ring down absorption spectroscopy Engeln, Richard; von Helden, Gert; Berden, Giel Chemical Physics Letters, Vol. 262, Issue 1-2, p. 105-109 https://doi.org/10.1016/0009-2614(96)01048-2	journal	November 1996
Cavity-enhanced frequency modulation spectroscopy: advancing optical detection sensitivity and laser frequency stabilization Ye, Jun; Ma, Long-Sheng; Hall, John L. Optoelectronics and High-Power Lasers & Applications, SPIE Proceedings https://doi.org/10.1117/12.308366	conference	May 1998
Detection of Nitrogen Dioxide by Cavity Attenuated Phase Shift Spectroscopy Kebabian, Paul L.; Herndon, Scott C.; Freedman, Andrew Analytical Chemistry, Vol. 77, Issue 2 https://doi.org/10.1021/ac048715y	journal	January 2005

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