Spatial resolution of cavity-enhanced photothermal spectroscopy

S. H. Chen; Zhuang Tang; Z. L. Rong; Hans A. Schuessler

doi:10.1117/12.21481

1 September 1990 Spatial resolution of cavity-enhanced photothermal spectroscopy

S. H. Chen, Zhuang Tang, Z. L. Rong, Hans A. Schuessler

Proceedings Volume 1302, Ocean Optics X; (1990) https://doi.org/10.1117/12.21481
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

Cavity-enhanced photothernial spectroscopy has been applied to perform ultrasensitive absorption measurements of thin fims and liquid surfaces. Absorption coefficients of less than one part in 10 have been detected. Both spectral and time-resolved photothermal measurements have been carried out and the spatial resolution of the method has been investigated using a Ronchi ruling as the sample. The measurements are in qualitative agreement with our thermal modelling calculations.

Citation Download Citation

S. H. Chen, Zhuang Tang, Z. L. Rong, and Hans A. Schuessler "Spatial resolution of cavity-enhanced photothermal spectroscopy", Proc. SPIE 1302, Ocean Optics X, (1 September 1990); https://doi.org/10.1117/12.21481

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