Efficient configuration transition in a new azobenzene-LC polymer for red light holographic recording

Weidong Mao; Qunhui Sun; Sarfaraz Baig; Hui Lu; Michael R. Wang

doi:10.1117/12.909912

20 February 2012 Efficient configuration transition in a new azobenzene-LC polymer for red light holographic recording

Weidong Mao, Qunhui Sun, Sarfaraz Baig, Hui Lu, Michael R. Wang

Proceedings Volume 8258, Organic Photonic Materials and Devices XIV; 82581J (2012) https://doi.org/10.1117/12.909912
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We demonstrate cis-to-trans transition based red light holographic recording in an azobenzene-liquid crystal (LC) polymer material following efficient crucial transition of trans-to-cis, which is prepared by selected wavelength light pre-illumination. The presence and orientation of soft liquid crystal impregnating the polymer backbone allows the cis intermediate states to hold for the stable red hologram recording and non-destructive readout. Using a 50 nm bandwidth light source at the center wavelength of 575 nm, we have efficient pre-illumination on the material. The diffraction efficiency of up to 2% can be achieved by a HeNe laser at 632.8 nm wavelength, and two-dimensional holograms of USAF resolution target are successfully recorded.

Citation Download Citation

Weidong Mao, Qunhui Sun, Sarfaraz Baig, Hui Lu, and Michael R. Wang "Efficient configuration transition in a new azobenzene-LC polymer for red light holographic recording", Proc. SPIE 8258, Organic Photonic Materials and Devices XIV, 82581J (20 February 2012); https://doi.org/10.1117/12.909912

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