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Proceedings Paper

Photothermal Deflection Spectroscopy In Zns Electroluminescent Thin Films
Author(s): J. Barkyoumb; R. W. Christy
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Paper Abstract

Photothermal,deflection spectroscopy is used to determine optical absorption in ZnS:Mn thin film electroluminescent phosphors. The ZnS:Mn sample is immersed in a transparent liquid and optically pumped with a square-wave intensity modulated monochromatic light source. This produces a thermal gradient in the fluid which is probed by a He-Ne laser beam grazing the sample surface. The optical absorption in the sample can be related to the deflection of the laser beam by the thermal lens in the fluid. The relation of the absorption to the energy levels in ZnS:Mn will be discussed.

Paper Details

Date Published: 5 May 1986
PDF: 3 pages
Proc. SPIE 0624, Advances in Display Technology VI, (5 May 1986); doi: 10.1117/12.961228
Show Author Affiliations
J. Barkyoumb, Dartmouth College (United States)
R. W. Christy, Dartmouth College (United States)

Published in SPIE Proceedings Vol. 0624:
Advances in Display Technology VI
Elliott Schlam, Editor(s)

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