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Proceedings Article

Fulgide-doped PMMA thin-film waveguides for optoelectronics

[+] Author Affiliations
Thiemo Kardinahl, Hilmar Franke

Univ. Duisburg (Germany)

Proc. SPIE 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II, 742 (November 19, 1993); doi:10.1117/12.162819
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From Conference Volume 1985

  • Physical Concepts and Materials for Novel Optoelectronic Device Applications II
  • Fabio Beltram; Erich Gornik
  • Trieste, France | May 23, 1993

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.

© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Thiemo Kardinahl and Hilmar Franke
"Fulgide-doped PMMA thin-film waveguides for optoelectronics", Proc. SPIE 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II, 742 (November 19, 1993); doi:10.1117/12.162819; http://dx.doi.org/10.1117/12.162819


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