Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Resonant optothermoacoustic detection: technique for measuring weak optical absorption by gases and micro-objects

Not Accessible

Your library or personal account may give you access

Abstract

We report a laser spectroscopy technique for detecting optical absorption in gases and micro-objects via linked thermal effects and by using a sharp mechanical resonance in a quartz crystal. The performance of this technique is studied using near-IR diode lasers and two gases, pure CO2 and C2H2 diluted in nitrogen. A 7.3×108cm1W/(Hz)1/2 noise equivalent sensitivity to absorption in gases is demonstrated. Based on experimental results, it was estimated that 108 fractional absorption of optical radiation by a micro-object deposited on a thin transparent fiber can be detected.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Part-per-trillion level SF6 detection using a quartz enhanced photoacoustic spectroscopy-based sensor with single-mode fiber-coupled quantum cascade laser excitation

Vincenzo Spagnolo, Pietro Patimisco, Simone Borri, Gaetano Scamarcio, Bruce E. Bernacki, and Jason Kriesel
Opt. Lett. 37(21) 4461-4463 (2012)

High-power near-infrared QEPAS sensor for ppb-level acetylene detection using a 28 kHz quartz tuning fork and 10 W EDFA

Zhifei Yang, Haoyang Lin, Baiyang Antonio Zhou Montano, Wenguo Zhu, Yongchun Zhong, Bin Yuan, Jianhui Yu, Ruifeng Kan, Min Shao, and Huadan Zheng
Opt. Express 30(4) 6320-6331 (2022)

Compact and sensitive mid-infrared all-fiber quartz-enhanced photoacoustic spectroscopy sensor for carbon monoxide detection

Yufei Ma, Yao Tong, Ying He, Xingang Jin, and Frank K. Tittel
Opt. Express 27(6) 9302-9312 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved