Multi-functional two-dimensional holographic grating based on silver pattern coated by azopolymer

•Periodically distributed refractive index and photoinduced birefringence.•Polarization modulation is realized with stable diffraction efficiency.•Different grating structures can be recorded in the same double-layer film.•The 2D diffraction device is angle-sensitive. A two-dimensional diffraction d...

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Veröffentlicht in:	Optics and laser technology 2021-02, Vol.134, p.106614, Article 106614
Hauptverfasser:	Lyu, Ziyao, Wang, Changshun
Format:	Artikel
Sprache:	eng
Schlagworte:	Angular sensitivity Azo compounds Azo polymers Diffraction efficiency Diffraction patterns Diffraction theory Holography Laser beams Linear polarization Luminous intensity Photoinduced birefringence Polarization modulation Recording Stable diffraction efficiency
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