Continuous-wave stimulated Raman gain spectroscopy with cavity-ringdown detection

Florian V. Englich; Yabai He; Brian J. Orr

Continuous-wave stimulated Raman gain spectroscopy with cavity-ringdown detection

Florian V. Englich, Yabai He, Brian J. Orr

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution

Abstract

We have extended cavity ringdown spectroscopy from its conventional optical-absorption mode of operation into the regime of coherent Raman spectroscopy. Continuous-wave stimulated Raman gain spectra of the ν₁ rovibrational fundamental Raman band of methane gas at 2916.5-cm⁻¹ are measured, using tunable cw laser light at ~1544 nm to probe ringdown decay from a rapidly-swept optical cavity that is itself inside the cavity of a cw single-longitudinal-mode Nd:YAG ring laser operating at ~1064.5 nm. Recent progress on this project has substantially improved the previously reported noise-equivalent sensitivity, with a second ringdown cavity facilitating subtraction of troublesome infraredabsorption background signals. Moreover, by using a ringdown cavity in the form of a ring, the pump and ringdowndetected Stokes beams are able to co-propagate unidirectionally; this substantially reduces Doppler broadening.

Original language	English
Title of host publication	Proceedings of the 17th Australian Institute of Physics national congress 2006
Editors	John Dobson, Robert Sang
Publisher	Australian Institute of Physics
Number of pages	4
ISBN (Print)	0959806474
Publication status	Published - 2006
Event	Australian Institute of Physics National Congress (17th : 2006) - Brisbane Duration: 3 Dec 2006 → 8 Dec 2006

Conference

Conference	Australian Institute of Physics National Congress (17th : 2006)
City	Brisbane
Period	3/12/06 → 8/12/06

Access to Document

http://www.aip.org.au/Congress2006/151.pdf

Cite this

@inproceedings{43e85e864ddb48a0b64fe2dd5cf5c41b,

title = "Continuous-wave stimulated Raman gain spectroscopy with cavity-ringdown detection",

abstract = "We have extended cavity ringdown spectroscopy from its conventional optical-absorption mode of operation into the regime of coherent Raman spectroscopy. Continuous-wave stimulated Raman gain spectra of the ν₁ rovibrational fundamental Raman band of methane gas at 2916.5-cm⁻¹ are measured, using tunable cw laser light at \textasciitilde{}1544 nm to probe ringdown decay from a rapidly-swept optical cavity that is itself inside the cavity of a cw single-longitudinal-mode Nd:YAG ring laser operating at \textasciitilde{}1064.5 nm. Recent progress on this project has substantially improved the previously reported noise-equivalent sensitivity, with a second ringdown cavity facilitating subtraction of troublesome infraredabsorption background signals. Moreover, by using a ringdown cavity in the form of a ring, the pump and ringdowndetected Stokes beams are able to co-propagate unidirectionally; this substantially reduces Doppler broadening.",

author = "Englich, \{Florian V.\} and Yabai He and Orr, \{Brian J.\}",

year = "2006",

language = "English",

isbn = "0959806474",

editor = "John Dobson and Robert Sang",

booktitle = "Proceedings of the 17th Australian Institute of Physics national congress 2006",

publisher = "Australian Institute of Physics",

address = "Australia",

note = "Australian Institute of Physics National Congress (17th : 2006) ; Conference date: 03-12-2006 Through 08-12-2006",

}

Englich, FV, He, Y & Orr, BJ 2006, Continuous-wave stimulated Raman gain spectroscopy with cavity-ringdown detection. in J Dobson & R Sang (eds), Proceedings of the 17th Australian Institute of Physics national congress 2006. Australian Institute of Physics, Australian Institute of Physics National Congress (17th : 2006), Brisbane, 3/12/06. <http://www.aip.org.au/Congress2006/151.pdf>

Continuous-wave stimulated Raman gain spectroscopy with cavity-ringdown detection. / Englich, Florian V.; He, Yabai; Orr, Brian J.
Proceedings of the 17th Australian Institute of Physics national congress 2006. ed. / John Dobson; Robert Sang. Australian Institute of Physics, 2006.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution

TY - GEN

T1 - Continuous-wave stimulated Raman gain spectroscopy with cavity-ringdown detection

AU - Englich, Florian V.

AU - He, Yabai

AU - Orr, Brian J.

PY - 2006

Y1 - 2006

N2 - We have extended cavity ringdown spectroscopy from its conventional optical-absorption mode of operation into the regime of coherent Raman spectroscopy. Continuous-wave stimulated Raman gain spectra of the ν₁ rovibrational fundamental Raman band of methane gas at 2916.5-cm⁻¹ are measured, using tunable cw laser light at ~1544 nm to probe ringdown decay from a rapidly-swept optical cavity that is itself inside the cavity of a cw single-longitudinal-mode Nd:YAG ring laser operating at ~1064.5 nm. Recent progress on this project has substantially improved the previously reported noise-equivalent sensitivity, with a second ringdown cavity facilitating subtraction of troublesome infraredabsorption background signals. Moreover, by using a ringdown cavity in the form of a ring, the pump and ringdowndetected Stokes beams are able to co-propagate unidirectionally; this substantially reduces Doppler broadening.

AB - We have extended cavity ringdown spectroscopy from its conventional optical-absorption mode of operation into the regime of coherent Raman spectroscopy. Continuous-wave stimulated Raman gain spectra of the ν₁ rovibrational fundamental Raman band of methane gas at 2916.5-cm⁻¹ are measured, using tunable cw laser light at ~1544 nm to probe ringdown decay from a rapidly-swept optical cavity that is itself inside the cavity of a cw single-longitudinal-mode Nd:YAG ring laser operating at ~1064.5 nm. Recent progress on this project has substantially improved the previously reported noise-equivalent sensitivity, with a second ringdown cavity facilitating subtraction of troublesome infraredabsorption background signals. Moreover, by using a ringdown cavity in the form of a ring, the pump and ringdowndetected Stokes beams are able to co-propagate unidirectionally; this substantially reduces Doppler broadening.

M3 - Conference proceeding contribution

SN - 0959806474

BT - Proceedings of the 17th Australian Institute of Physics national congress 2006

A2 - Dobson, John

A2 - Sang, Robert

PB - Australian Institute of Physics

T2 - Australian Institute of Physics National Congress (17th : 2006)

Y2 - 3 December 2006 through 8 December 2006

ER -

Continuous-wave stimulated Raman gain spectroscopy with cavity-ringdown detection

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