T.J. Lenk, R.L. Siemens, et al.
Macromolecules
Paper
Two-photon-induced birefringence in polysilanes
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.
Related
G.A. Held, I. Dierking, et al.
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
K. Song, R.D. Miller, et al.
Macromolecules
R.D. Miller, C.J. Hawker, et al.
Tetrahedron Letters