Ultrasensitive near-infrared integrated cavity output spectroscopy technique for detection of CO at 1.57 μm: new sensitivity limits for absorption measurements in passive optical cavities
作者： Gregory S. Engel , Walter S. Drisdell , Frank N. Keutsch , Elisabeth J. Moyer , James G. Anderson
DOI: 10.1364/AO.45.009221
关键词:
摘要: A robust absorption spectrometer using the off-axis integrated cavity output spectroscopy (ICOS) technique in a passive is presented. The observed sensitivity, conceptually detection threshold for cross section (cm2) multiplied by concentration (cm−3) and normalized averaging time, measured to be 1.9×10−12 (1/cm√Hz). This high sensitivity arises from optical amplify path length while avoiding resonances careful design of spot pattern within cavity. instrument ideally suited routine monitoring trace gases near-infrared region. spectrum showing ambient carbon monoxide at 1.57 μm
osapublishing.org
harvard.edu参考文章(16)
A. L. Schawlow, C. H. Townes, Infrared and optical masers ,(1958)
Anthony O’Keefe, David A. G. Deacon, Cavity ring‐down optical spectrometer for absorption measurements using pulsed laser sources Review of Scientific Instruments. ,vol. 59, pp. 2544- 2551 ,(1988) , 10.1063/1.1139895
J. J. Scherer, J. B. Paul, A. O'Keefe, R. J. Saykally, Cavity Ringdown Laser Absorption Spectroscopy: History, Development, and Application to Pulsed Molecular Beams. Chemical Reviews. ,vol. 97, pp. 25- 52 ,(1997) , 10.1021/CR930048D
Ziyuan Li, R.G.T. Bennett, G.E. Stedman, Swept-frequency induced optical cavity ringing Optics Communications. ,vol. 86, pp. 51- 57 ,(1991) , 10.1016/0030-4018(91)90242-6
Dana Z. Anderson, Josef C. Frisch, Carl S. Masser, Mirror reflectometer based on optical cavity decay time. Applied Optics. ,vol. 23, pp. 1238- 1245 ,(1984) , 10.1364/AO.23.001238
Gerard Meijer, Maarten G.H. Boogaarts, Rienk T. Jongma, David H. Parker, Alec M. Wodtke, Coherent cavity ring down spectroscopy Chemical Physics Letters. ,vol. 217, pp. 112- 116 ,(1994) , 10.1016/0009-2614(93)E1361-J
Richard Engeln, Giel Berden, Rudy Peeters, Gerard Meijer, Cavity enhanced absorption and cavity enhanced magnetic rotation spectroscopy Review of Scientific Instruments. ,vol. 69, pp. 3763- 3769 ,(1998) , 10.1063/1.1149176
Jérôme Morville, Daniele Romanini, Marc Chenevier, Alexander Kachanov, Effects of laser phase noise on the injection of a high-finesse cavity. Applied Optics. ,vol. 41, pp. 6980- 6990 ,(2002) , 10.1364/AO.41.006980
T. G. Spence, C. C. Harb, B. A. Paldus, R. N. Zare, B. Willke, R. L. Byer, A laser-locked cavity ring-down spectrometer employing an analog detection scheme Review of Scientific Instruments. ,vol. 71, pp. 347- 353 ,(2000) , 10.1063/1.1150206
J. M. Herbelin, J. A. McKay, M. A. Kwok, R. H. Ueunten, D. S. Urevig, D. J. Spencer, D. J. Benard, Sensitive measurement of photon lifetime and true reflectances in an optical cavity by a phase-shift method Applied Optics. ,vol. 19, pp. 144- 147 ,(1980) , 10.1364/AO.19.000144