Formation of pure polarization gratings in 4-methoxyazobenzene containing polymer films using off-resonant laser light

Nobuhiro Kawatsuki, Ulrich; Uchida, Emi; Hiroshi Ono, Emi
December 2003
Applied Physics Letters;12/1/2003, Vol. 83 Issue 22, p4544
Academic Journal
Polarization holographic recordings in polymer liquid-crystal films with azobenzene side groups were investigated using two orthogonal linearly polarized 633 nm He-Ne laser beams and subsequent annealing. Although the electric transitions of the polymer material were almost off-resonant, stable pure polarization gratings were created with a first-order diffraction efficiency greater than 30%. © 2003 American Institute of Physics.


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