1.
Opt Lett
; 35(3): 405-7, 2010 Feb 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-20125736
RESUMO
The +1 order diffraction of polarization holographic gratings generated by two linear orthogonally polarized writing beams in dye-doped liquid-crystal films were increased by using two recording beams with unequal intensity. The maximum diffraction efficiency of the polarization holograms in our experimental sample can reach 23% when the intensity ratio of two recording beams is 7:1, and this value is almost triple that when the intensity ratio of two recording beams is 1:1.