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Proceedings Paper

Fulgide-doped PMMA thin-film waveguides for optoelectronics
Author(s): Thiemo Kardinahl; Hilmar Franke
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Paper Abstract

PMMA Poly(methyl methacrylate) is doped with a photochromic fulgide. The fulgide undergoes a reversible refractive index change at UV irradiation. This colored form can be bleached by irradiation with a wavelength in the visible. The photoinduced refractive index change (Delta) n is studied for various concentrations and UV intensities by holography. The tunable effective refractive index can be used for controlling the intensity of a guided mode in thin film waveguides (0.5 - 5 micrometers ) by an external UV light source. Monomode waveguides are used as a cut-off modulator (opto-optical switch). The switching time is about 20 ms.

Paper Details

Date Published: 19 November 1993
PDF: 10 pages
Proc. SPIE 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II, (19 November 1993); doi: 10.1117/12.162819
Show Author Affiliations
Thiemo Kardinahl, Univ. Duisburg (Germany)
Hilmar Franke, Univ. Duisburg (Germany)


Published in SPIE Proceedings Vol. 1985:
Physical Concepts and Materials for Novel Optoelectronic Device Applications II
Fabio Beltram; Erich Gornik, Editor(s)

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