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Proceedings Paper

Efficient configuration transition in a new azobenzene-LC polymer for red light holographic recording
Author(s): Weidong Mao; Qunhui Sun; Sarfaraz Baig; Hui Lu; Michael R. Wang
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Paper 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.

Paper Details

Date Published: 20 February 2012
PDF: 6 pages
Proc. SPIE 8258, Organic Photonic Materials and Devices XIV, 82581J (20 February 2012); doi: 10.1117/12.909912
Show Author Affiliations
Weidong Mao, Univ. of Miami (United States)
Qunhui Sun, New Span Opto-Technology Inc. (United States)
Sarfaraz Baig, Univ. of Miami (United States)
Hui Lu, Univ. of Miami (United States)
Michael R. Wang, Univ. of Miami (United States)

Published in SPIE Proceedings Vol. 8258:
Organic Photonic Materials and Devices XIV
Christopher Tabor; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)

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