Two-photon bit data storage in azobenzene polymer liquid crystal using low-power cw laser

Jiangying Zhang; Zhongcheng Liang; Hai Ming; Yong Xia; Yunze Long; Jiangping Xie; Qijin Zhang; Weilun Shen

doi:10.1117/12.416835

7 February 2001 Two-photon bit data storage in azobenzene polymer liquid crystal using low-power cw laser

Jiangying Zhang, Zhongcheng Liang, Hai Ming, Yong Xia, Yunze Long, Jiangping Xie, Qijin Zhang, Weilun Shen

Proceedings Volume 4085, Fifth International Symposium on Optical Storage (ISOS 2000); (2001) https://doi.org/10.1117/12.416835
Event: Fifth International Symposium on Optical Storage (IS0S 2000), 2000, Shanghai, China

Abstract

In this paper, two-photon bit data storage in azobenzene polymer liquid crystal (PLC) film using low-power continuous wave (CW) laser beam at 532 nm is proposed and demonstrated for the first time, the exposure threshold of the material is below 4 X 10⁶ mw/cm², and a bit data storage pattern is recorded by two-photon absorption (TPA). The data is easily erasable and rewritable by the light of the same wavelength as the recording light.

Citation Download Citation

Jiangying Zhang, Zhongcheng Liang, Hai Ming, Yong Xia, Yunze Long, Jiangping Xie, Qijin Zhang, and Weilun Shen "Two-photon bit data storage in azobenzene polymer liquid crystal using low-power cw laser", Proc. SPIE 4085, Fifth International Symposium on Optical Storage (ISOS 2000), (7 February 2001); https://doi.org/10.1117/12.416835

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