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24 January 2008Enhancement of recording and readout for the photopolymer holographic disk system by using a conjugate structure
A conjugate recording/readout method is described for volume holographic disk system. The principle of the coupled
wave analysis is given for the dynamic processes of the volume holographic gratings. The formation of gratings under
the conjugate method and the corresponding diffraction efficiency are studied experimentally with the cationic ringopening
photopolymerization (CROP) material. Results show that the method helps to enhance the holographic
recording/readout process with a higher speed. It can also reduce the non-uniform exposure along the beam inside the
material. With this conjugate structure, low-power semiconductor laser diodes are applicable and the recording speed is
greatly increased, which will promote the compact and commercialization of the volume holographic photopolymer disk
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Liangcai Cao, Zhen Zhao, Huarong Gu, Qingsheng He, Guofan Jin, "Enhancement of recording and readout for the photopolymer holographic disk system by using a conjugate structure," Proc. SPIE 6827, Quantum Optics, Optical Data Storage, and Advanced Microlithography, 68270X (24 January 2008); https://doi.org/10.1117/12.760253