Photoacoustic sensing with micro-tuning forks

U. Willer; M. Köhring; M. Mordmüller; W. Schade

doi:10.1117/12.2182583

3 June 2015 Photoacoustic sensing with micro-tuning forks

U. Willer, M. Köhring, M. Mordmüller, W. Schade

Proceedings Volume 9482, Next-Generation Spectroscopic Technologies VIII; 94820B (2015) https://doi.org/10.1117/12.2182583
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

Different modifications of quartz enhanced photoacoustic spectroscopy (QEPAS) are discussed. An analysis of the signal-to-noise ratio for the generated photoacoustic signal gives hints for an optimized geometry of tuning fork and acoustic resonator. Furthermore, simultaneous or alternate photoacoustic and electrical driving is discussed, leading the way to new detection schemes that are capable of measuring changes in molecular relaxation dynamics.

Citation Download Citation

U. Willer, M. Köhring, M. Mordmüller, and W. Schade "Photoacoustic sensing with micro-tuning forks", Proc. SPIE 9482, Next-Generation Spectroscopic Technologies VIII, 94820B (3 June 2015); https://doi.org/10.1117/12.2182583

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