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Title: Cavity-locked ring-down spectroscopy

Abstract

We have performed cavity ring-down spectroscopy by locking a high-finesse resonator to the probe laser. We have obtained combination overtone spectra of water vapor in the ambient environment with a baseline noise of 5{times}10{sup {minus}9} cm{sup {minus}1} for decay constants (R=99.93{percent} reflectors) of 1 {mu}s. This cavity-locked approach ensures single transverse mode excitation, reduces shot-to-shot fluctuations in the decay constant to 4{times}10{sup {minus}3}, and eliminates oscillations in spectral backgrounds. This approach also allows ring-down decay acquisition rates limited only by the ring-down and buildup constants of the resonator, and holds the promise of offering truly shot-noise-limited cavity ring-down spectroscopy measurements. {copyright} {ital 1998 American Institute of Physics.}

Authors:
; ; ; ; ; ;  [1]
  1. Department of Chemistry, Stanford University, Stanford, California94305-5080 (United States)
Publication Date:
OSTI Identifier:
625370
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 83; Journal Issue: 8; Other Information: PBD: Apr 1998
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; INFRARED SPECTRA; WATER; ABSORPTION SPECTROSCOPY; WATER VAPOR; CAVITY RESONATORS; SEMICONDUCTOR LASERS; SIGNAL-TO-NOISE RATIO; SENSITIVITY; MODE LOCKING

Citation Formats

Paldus, B A, Harb, C C, Spence, T G, Wilke, B, Xie, J, Harris, J S, and Zare, R N. Cavity-locked ring-down spectroscopy. United States: N. p., 1998. Web. doi:10.1063/1.367155.
Paldus, B A, Harb, C C, Spence, T G, Wilke, B, Xie, J, Harris, J S, & Zare, R N. Cavity-locked ring-down spectroscopy. United States. https://doi.org/10.1063/1.367155
Paldus, B A, Harb, C C, Spence, T G, Wilke, B, Xie, J, Harris, J S, and Zare, R N. 1998. "Cavity-locked ring-down spectroscopy". United States. https://doi.org/10.1063/1.367155.
@article{osti_625370,
title = {Cavity-locked ring-down spectroscopy},
author = {Paldus, B A and Harb, C C and Spence, T G and Wilke, B and Xie, J and Harris, J S and Zare, R N},
abstractNote = {We have performed cavity ring-down spectroscopy by locking a high-finesse resonator to the probe laser. We have obtained combination overtone spectra of water vapor in the ambient environment with a baseline noise of 5{times}10{sup {minus}9} cm{sup {minus}1} for decay constants (R=99.93{percent} reflectors) of 1 {mu}s. This cavity-locked approach ensures single transverse mode excitation, reduces shot-to-shot fluctuations in the decay constant to 4{times}10{sup {minus}3}, and eliminates oscillations in spectral backgrounds. This approach also allows ring-down decay acquisition rates limited only by the ring-down and buildup constants of the resonator, and holds the promise of offering truly shot-noise-limited cavity ring-down spectroscopy measurements. {copyright} {ital 1998 American Institute of Physics.}},
doi = {10.1063/1.367155},
url = {https://www.osti.gov/biblio/625370}, journal = {Journal of Applied Physics},
number = 8,
volume = 83,
place = {United States},
year = {Wed Apr 01 00:00:00 EST 1998},
month = {Wed Apr 01 00:00:00 EST 1998}
}