Journal
OPTICS LETTERS
Volume 39, Issue 8, Pages 2479-2482Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.002479
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Funding
- 973 program [2012CB921603]
- National Natural Science Foundation of China [61275213, 61108030, 61127017, 61178009, 61378047, 61205216]
- National Key Technology RD Program [2013BAC14B01]
- Shanxi Natural Science Foundation [2013021004-1, 2012021022-1]
- Shanxi Patent Promotion and Implementation Project
- Shanxi Scholarship Council of China [2013-011, 2013-01]
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Quartz-enhanced photoacoustic spectroscopy (QEPAS) based on double acoustic microresonators (AmRs) is developed and experimentally investigated. The double AmR spectrophone configuration exhibits a strong acoustic coupling between the AmR and the quartz tuning fork, which results in a similar to 5 ms fast response time. Moreover, the double AmRs provide two independent detection channels that allow optical signal addition or cancellation from different optical wavelengths and facilitate rapid multigas sensing measurements, thereby avoiding laser beam combination. (C) 2014 Optical Society of America
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