Photoinduced surface reliefs in an organic azo-glass

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Feb 2003Publisher:SPIEJournal:SPIE Proceedings, volume 4,833, page 602 (issn: 0277-786X,

Authors: A Draude; N Reinke; A Perschke; Hilmar Franke; Roger A. Lessard; T Fuhrmann;

doi: 10.1117/12.473952

Photoinduced surface reliefs in an organic azo-glass

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Abstract

The formation of holographic gratings in an azo-glass is investigated for the simple case of an intensity grating in the s-polarization of the recording beams. A dual grating is formed as a function of time with a refractive index grating and a relief grating. The diffraction efficiency as a function of recording time is discussed in a model of 2 consecutive processes with a phase shift. A material transport process is involved in the formation of relief patterns. A thermal erasure process at the glass transition is compared with an optical process.

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