Abstract
A novel method of cavity ringdown spectroscopy is proposed to achieve high spectral resolution with tunable narrow bandwidth pulsed lasers. We demonstrate a cavity-tuned ringdown configuration in which only a single cavity mode is kept excited near the carrier frequency of a narrow bandwidth pulse laser. This is done simply by making a cavity resonance actively track the frequency reference served by the cw injection seed of the pulsed laser source. We present the servo mechanism used in the cavity resonance tracking, reliable procedures for transverse mode matching, and the evidence of single longitudinal mode excitation. The spectrometer performance is tested to record weak molecular overtone features of acetylene around the wavelength of 570 nm, showing cavity tracking stability within 5-MHz uncertainty which overcomes the bandwidth limit of pulsed laser sources itself.
| Original language | English |
|---|---|
| Pages (from-to) | 493-501 |
| Number of pages | 9 |
| Journal | Applied Physics B: Lasers and Optics |
| Volume | 78 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 2004 Feb 1 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
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High-resolution cavity-tuned ringdown spectrometer using a narrow-bandwidth pulsed laser source. / Lee, J. Y.; Kim, J. W.; Yoo, Y. S.; Hahn, J. W.
In: Applied Physics B: Lasers and Optics, Vol. 78, No. 3-4, 01.02.2004, p. 493-501.Research output: Contribution to journal › Article
TY - JOUR
T1 - High-resolution cavity-tuned ringdown spectrometer using a narrow-bandwidth pulsed laser source
AU - Lee, J. Y.
AU - Kim, J. W.
AU - Yoo, Y. S.
AU - Hahn, J. W.
PY - 2004/2/1
Y1 - 2004/2/1
N2 - A novel method of cavity ringdown spectroscopy is proposed to achieve high spectral resolution with tunable narrow bandwidth pulsed lasers. We demonstrate a cavity-tuned ringdown configuration in which only a single cavity mode is kept excited near the carrier frequency of a narrow bandwidth pulse laser. This is done simply by making a cavity resonance actively track the frequency reference served by the cw injection seed of the pulsed laser source. We present the servo mechanism used in the cavity resonance tracking, reliable procedures for transverse mode matching, and the evidence of single longitudinal mode excitation. The spectrometer performance is tested to record weak molecular overtone features of acetylene around the wavelength of 570 nm, showing cavity tracking stability within 5-MHz uncertainty which overcomes the bandwidth limit of pulsed laser sources itself.
AB - A novel method of cavity ringdown spectroscopy is proposed to achieve high spectral resolution with tunable narrow bandwidth pulsed lasers. We demonstrate a cavity-tuned ringdown configuration in which only a single cavity mode is kept excited near the carrier frequency of a narrow bandwidth pulse laser. This is done simply by making a cavity resonance actively track the frequency reference served by the cw injection seed of the pulsed laser source. We present the servo mechanism used in the cavity resonance tracking, reliable procedures for transverse mode matching, and the evidence of single longitudinal mode excitation. The spectrometer performance is tested to record weak molecular overtone features of acetylene around the wavelength of 570 nm, showing cavity tracking stability within 5-MHz uncertainty which overcomes the bandwidth limit of pulsed laser sources itself.
UR - http://www.scopus.com/inward/record.url?scp=15844372988&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=15844372988&partnerID=8YFLogxK
U2 - 10.1007/s00340-003-1360-y
DO - 10.1007/s00340-003-1360-y
M3 - Article
AN - SCOPUS:15844372988
VL - 78
SP - 493
EP - 501
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 3-4
ER -