Abstract

A new approach to detecting a weak photoacoustic signal in a gas medium is described. Instead of a gas-filled resonant acoustic cavity, the sound energy is accumulated in a high-$Q$ crystal element. Feasibility experiments utilizing a quartz-watch tuning fork demonstrate a sensitivity of $1.2\times {10}^{-7} {\mathrm{cm}}^{-1} \mathrm{W}/\sqrt{\mathrm{Hz}}$. Potential further developments and applications of this technique are discussed.

© 2002 Optical Society of America

Ammonia detection by use of quartz-enhanced photoacoustic spectroscopy with a near-IR telecommunication diode laser

Anatoliy A. Kosterev and Frank K. Tittel
Appl. Opt. 43(33) 6213-6217 (2004)

Application of a widely electrically tunable diode laser to chemical gas sensing with quartz-enhanced photoacoustic spectroscopy

Damien Weidmann, Anatoliy A. Kosterev, Frank K. Tittel, Neil Ryan, and David McDonald
Opt. Lett. 29(16) 1837-1839 (2004)

Tuning forks with optimized geometries for quartz-enhanced photoacoustic spectroscopy

Pietro Patimisco, Angelo Sampaolo, Marilena Giglio, Stefano dello Russo, Verena Mackowiak, Hubert Rossmadl, Alex Cable, Frank K. Tittel, and Vincenzo Spagnolo
Opt. Express 27(2) 1401-1415 (2019)

Quartz-enhanced photoacoustic-photothermal spectroscopy for trace gas sensing

Yinqiu Hu, Shunda Qiao, Ying He, Ziting Lang, and Yufei Ma
Opt. Express 29(4) 5121-5127 (2021)

Analysis of overtone flexural modes operation in quartz-enhanced photoacoustic spectroscopy

Frank K. Tittel, Angelo Sampaolo, Pietro Patimisco, Lei Dong, Antonina Geras, Tomasz Starecki, and Vincenzo Spagnolo
Opt. Express 24(6) A682-A692 (2016)