Effect of broadband amplified spontaneous emission on absorption measurements in phase-shift off-axis cavity enhanced absorption spectroscopy

Vasili L. Kasyutich; Philip A. Martin; Robert J. Holdsworth

doi:10.1016/j.cplett.2006.09.007

Effect of broadband amplified spontaneous emission on absorption measurements in phase-shift off-axis cavity enhanced absorption spectroscopy

Vasili L. Kasyutich
, Philip A. Martin
, Robert J. Holdsworth

Research output: Contribution to journal › Article › peer-review

Abstract

Phase-shift cavity enhanced absorption spectroscopy has been described for the case of an off-axis alignment of an optical cavity formed by high reflectivity mirrors. The effect of laser broadband amplified spontaneous emission (ASE) from a DFB diode laser (∼1605 nm) has been analysed for absorption measurements extracted from the phase-shift of the intensity modulated beam. A simple model has been proposed for extraction of actual absorption spectra and linestrengths from the phase and amplitude measurements. It has been shown that omitting the ASE contribution to the cavity output light intensity may lead to an overestimation of absorption linestrength. © 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	429-434
Number of pages	5
Journal	Chemical Physics Letters
Volume	430
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2006.09.007
Publication status	Published - 30 Oct 2006

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title = "Effect of broadband amplified spontaneous emission on absorption measurements in phase-shift off-axis cavity enhanced absorption spectroscopy",

abstract = "Phase-shift cavity enhanced absorption spectroscopy has been described for the case of an off-axis alignment of an optical cavity formed by high reflectivity mirrors. The effect of laser broadband amplified spontaneous emission (ASE) from a DFB diode laser (∼1605 nm) has been analysed for absorption measurements extracted from the phase-shift of the intensity modulated beam. A simple model has been proposed for extraction of actual absorption spectra and linestrengths from the phase and amplitude measurements. It has been shown that omitting the ASE contribution to the cavity output light intensity may lead to an overestimation of absorption linestrength. {\textcopyright} 2006 Elsevier B.V. All rights reserved.",

author = "Kasyutich, \{Vasili L.\} and Martin, \{Philip A.\} and Holdsworth, \{Robert J.\}",

year = "2006",

month = oct,

day = "30",

doi = "10.1016/j.cplett.2006.09.007",

language = "English",

volume = "430",

pages = "429--434",

journal = "Chemical Physics Letters",

issn = "1873-4448",

publisher = "Elsevier BV",

number = "4-6",

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TY - JOUR

T1 - Effect of broadband amplified spontaneous emission on absorption measurements in phase-shift off-axis cavity enhanced absorption spectroscopy

AU - Kasyutich, Vasili L.

AU - Martin, Philip A.

AU - Holdsworth, Robert J.

PY - 2006/10/30

Y1 - 2006/10/30

N2 - Phase-shift cavity enhanced absorption spectroscopy has been described for the case of an off-axis alignment of an optical cavity formed by high reflectivity mirrors. The effect of laser broadband amplified spontaneous emission (ASE) from a DFB diode laser (∼1605 nm) has been analysed for absorption measurements extracted from the phase-shift of the intensity modulated beam. A simple model has been proposed for extraction of actual absorption spectra and linestrengths from the phase and amplitude measurements. It has been shown that omitting the ASE contribution to the cavity output light intensity may lead to an overestimation of absorption linestrength. © 2006 Elsevier B.V. All rights reserved.

AB - Phase-shift cavity enhanced absorption spectroscopy has been described for the case of an off-axis alignment of an optical cavity formed by high reflectivity mirrors. The effect of laser broadband amplified spontaneous emission (ASE) from a DFB diode laser (∼1605 nm) has been analysed for absorption measurements extracted from the phase-shift of the intensity modulated beam. A simple model has been proposed for extraction of actual absorption spectra and linestrengths from the phase and amplitude measurements. It has been shown that omitting the ASE contribution to the cavity output light intensity may lead to an overestimation of absorption linestrength. © 2006 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.cplett.2006.09.007

DO - 10.1016/j.cplett.2006.09.007

M3 - Article

SN - 1873-4448

VL - 430

SP - 429

EP - 434

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Effect of broadband amplified spontaneous emission on absorption measurements in phase-shift off-axis cavity enhanced absorption spectroscopy

Abstract

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