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Proceedings Paper

Photoacoustic spectra of malachite green adsorbed on silica gel surface
Author(s): Anna Sikorska; Stanislaw Zachara
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Paper Abstract

Photoacoustic spectra of malachite green adsorbed on silica gel were investigated at high dye concentrations. The measurements were carried out for two markedly differing layer thicknesses of dyed silica. The ratio of maxima of two characteristic dye bands at (lambda) equals 620 nm and (lambda) equals 425 nm was chosen as an indicator of concentration dependent changes in the shapes of the photoacoustic spectra investigated. The comparison of experimental data with the theoretical model implies that the changes observed in the shape of the spectrum result first of all from the mechanism of the signal generation in inhomogeneous medium.

Paper Details

Date Published: 25 November 1992
PDF: 4 pages
Proc. SPIE 1844, Acousto-Optics and Applications, (25 November 1992); doi: 10.1117/12.131937
Show Author Affiliations
Anna Sikorska, Univ. of Gdansk (Poland)
Stanislaw Zachara, Univ. of Gdansk (Poland)

Published in SPIE Proceedings Vol. 1844:
Acousto-Optics and Applications
Antoni Sliwinski; Piotr Kwiek; B. Linde; A. Markiewicz, Editor(s)

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