Publication
Chemical Physics Letters
Paper

Two-photon-induced birefringence in polysilanes

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Abstract

Chain scission induced by two-photon exposure produces a permanent birefringence in polysilane polymer films, which can be used for the formation of birefringent optical elements. Spectroscopy of the effect for poly(di-n-hexylsilane) reveals an unexpected sharp resonance at 580 nm. A comparison of several polysilanes indicates the effect only occurs in polymers with symmetric or near symmetric sidegroups. Models to explain these observations are introduced and discussed. © 1990.

Date

12 Mar 1990

Publication

Chemical Physics Letters

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