Zihan Li, Yi Xie, Bicheng Guo, Zhuoya Zhu, Wei Lei
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Improving of Holographic Recording Performance of PVA/AA Photopolymers
This work studies the holographic recording performance of slanted and non-slanted transmission volume holographic gratings (VHGs), recorded in PVA/AA photopolymers with different spatial frequencies. The effects of the preparation conditions for VHGs were experimentally investigated. The optimum preparation conditions for holographic recording will be showed under specific spatial frequency. After optimization, the peak diffraction efficiency of VHGs reached 81%. The VHGs with a spatial frequency of 1710 lines/mm were verified to be used as the in-coupling grating of the holographic waveguide system.
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