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Proceedings Paper

Laser And Spectroscopic Characterization Of Thin Films
Author(s): Renata Reisfelda; Valery Chernyak; Marek Eyal; Amotz Weitz
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Paper Abstract

Transparent glass or polymer films doped by luminescent species are new promising materials for luminescent solar concentrat-ors, wave guides, two dimensional lasers and nonlinear materials. Polymethylmethacrylate (PMMA) and Polyvinylacetate (PVA) films containing Rhodamine 6G (Rh6G) and glass films containing Rh6G and/or inorganic ions were prepared. Chemical and spectroscopic properties of the doped films were determined by means of absorption and polarized emission spectroscopy and lifetimes of the dopants. Thicknesses of the films were determined by laser interferometry and absorption spectroscopy in the visible and infrared. Simultaneously absorption spectra of the dyes uniformly dispersed in the film in a monomeric form were measured and the film thickness and homogeneity determined from the molar extinction coefficient of the dye. The films may be prepared with controlled and predetermined thickness. The nonlinear properties of the doped films may be enhanced during their formation by orienting the dopants either in an electric field or by stretching the films uni-axially. Fluorescence depolarization allows energy transfer measurements.

Paper Details

Date Published: 6 March 1989
PDF: 7 pages
Proc. SPIE 1016, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VII, (6 March 1989); doi: 10.1117/12.949937
Show Author Affiliations
Renata Reisfelda, The Hebrew University of Jerusalem (Israel)
Valery Chernyak, The Hebrew University of Jerusalem (Israel)
Marek Eyal, The Hebrew University of Jerusalem (Israel)
Amotz Weitz, The Hebrew University of Jerusalem (Israel)


Published in SPIE Proceedings Vol. 1016:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VII
Claes-Goeran Granqvist; Carl M. Lampert, Editor(s)

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