Intracavity quartz-enhanced photoacoustic sensor
Abstract
We report on a spectroscopic technique named intracavity quartz-enhanced photoacoustic spectroscopy (I-QEPAS) employed for sensitive trace-gas detection in the mid-infrared spectral region. It is based on a combination of QEPAS with a buildup optical cavity. The sensor includes a distributed feedback quantum cascade laser emitting at 4.33 μm. We achieved a laser optical power buildup factor of ∼500, which corresponds to an intracavity laser power of ∼0.75 W. CO{sub 2} has been selected as the target molecule for the I-QEPAS demonstration. We achieved a detection sensitivity of 300 parts per trillion for 4 s integration time, corresponding to a noise equivalent absorption coefficient of 1.4 × 10{sup −8} cm{sup −1} and a normalized noise-equivalent absorption of 3.2 × 10{sup −10} W cm{sup −1} Hz{sup −1/2}.
- Authors:
-
- CNR-INO UOS Sesto Fiorentino and LENS, via Carrara 1, 50019 Sesto Fiorentino FI (Italy)
- CNR-IFN UOS Bari and Dipartimento Interateneo di Fisica, Università degli Studi di Bari e Politecnico di Bari, via Amendola 173, 70126 Bari BA (Italy)
- Development Bureau Laser Device R and D Group, Hamamatsu Photonics KK, Shizuoka 434-8601 (Japan)
- Central Research Laboratories, Hamamatsu Photonics KK, Shizuoka 434-8601 (Japan)
- Publication Date:
- OSTI Identifier:
- 22283061
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 104; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; CARBON DIOXIDE; DETECTION; LASER RADIATION; MOLECULES; NOISE; PHOTOACOUSTIC SPECTROSCOPY; QUARTZ; SENSITIVITY; SENSORS; SOLID STATE LASERS
Citation Formats
Borri, S., E-mail: simone.borri@ino.it, Galli, I., Mazzotti, D., Giusfredi, G., De Natale, P., Patimisco, P., Scamarcio, G., Spagnolo, V., Akikusa, N., and Yamanishi, M. Intracavity quartz-enhanced photoacoustic sensor. United States: N. p., 2014.
Web. doi:10.1063/1.4867268.
Borri, S., E-mail: simone.borri@ino.it, Galli, I., Mazzotti, D., Giusfredi, G., De Natale, P., Patimisco, P., Scamarcio, G., Spagnolo, V., Akikusa, N., & Yamanishi, M. Intracavity quartz-enhanced photoacoustic sensor. United States. https://doi.org/10.1063/1.4867268
Borri, S., E-mail: simone.borri@ino.it, Galli, I., Mazzotti, D., Giusfredi, G., De Natale, P., Patimisco, P., Scamarcio, G., Spagnolo, V., Akikusa, N., and Yamanishi, M. 2014.
"Intracavity quartz-enhanced photoacoustic sensor". United States. https://doi.org/10.1063/1.4867268.
@article{osti_22283061,
title = {Intracavity quartz-enhanced photoacoustic sensor},
author = {Borri, S., E-mail: simone.borri@ino.it and Galli, I. and Mazzotti, D. and Giusfredi, G. and De Natale, P. and Patimisco, P. and Scamarcio, G. and Spagnolo, V. and Akikusa, N. and Yamanishi, M.},
abstractNote = {We report on a spectroscopic technique named intracavity quartz-enhanced photoacoustic spectroscopy (I-QEPAS) employed for sensitive trace-gas detection in the mid-infrared spectral region. It is based on a combination of QEPAS with a buildup optical cavity. The sensor includes a distributed feedback quantum cascade laser emitting at 4.33 μm. We achieved a laser optical power buildup factor of ∼500, which corresponds to an intracavity laser power of ∼0.75 W. CO{sub 2} has been selected as the target molecule for the I-QEPAS demonstration. We achieved a detection sensitivity of 300 parts per trillion for 4 s integration time, corresponding to a noise equivalent absorption coefficient of 1.4 × 10{sup −8} cm{sup −1} and a normalized noise-equivalent absorption of 3.2 × 10{sup −10} W cm{sup −1} Hz{sup −1/2}.},
doi = {10.1063/1.4867268},
url = {https://www.osti.gov/biblio/22283061},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 9,
volume = 104,
place = {United States},
year = {Mon Mar 03 00:00:00 EST 2014},
month = {Mon Mar 03 00:00:00 EST 2014}
}