Effect of recording-beam ratio on diffraction efficiency of polarization holographic gratings in dye-doped liquid-crystal films

Effect of recording-beam ratio on diffraction efficiency of polarization holographic gratings in dye-doped liquid-crystal films

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 exp...

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Veröffentlicht in:Optics letters 2010-02, Vol.35 (3), p.405-407
Hauptverfasser: SU, Wei-Chia, HUANG, Chi-Yen, CHEN, Jin-Yi, SU, Wei-Huang
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Holographic optical elements
holographic gratings
Holography
Liquid crystals
Optical materials
Optics
Physics
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Zusammenfassung: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.35.000405