Optical saturation effects in photothermal spectroscopy

Authors

Samuel B. Peralta ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The dependence of the fundamental and harmonic photothermal (PT) signals on the intensity I₀ of the illumination source is analyzed. It is found that the PT signal does not indefinitely increase with I₀, but at sufficiently high power densities begins to decrease as 1/I₀. The onset of optical saturation thus defines an upper limit to the sensitivity of spectrometers based on photothermal detection.

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Issue

1988: Proceedings of the Seventh Samahang Pisika ng Pilipinas National Physics Congress

Progress of Theoretical and Experimental Physics (1988)
30 May–1 June 1988, University of the Philippines Los Baños, Laguna

Article ID

SPP-1998-LS-05

Section

Laser Physics and Spectroscopy

Published

1988-05-30

How to Cite

[1]

SB Peralta, Optical saturation effects in photothermal spectroscopy, Proceedings of the Samahang Pisika ng Pilipinas 7, SPP-1998-LS-05 (1988). URL: https://proceedings.spp-online.org/article/view/SPP-2020-LS-05.