Please use this identifier to cite or link to this item: https://doi.org/10.1364/AO.48.003766
Title: Electrically switchable computer-generated hologram using a liquid crystal cell with a proton beam patterned polymethylmethacrylate substrate
Authors: Luo, D.
Sun, X.W.
Liu, Y.J.
Dai, H.T.
Sheng, O.Y. 
Breese, M.B.H. 
Raszewski, Z.
Issue Date: 1-Jul-2009
Source: Luo, D., Sun, X.W., Liu, Y.J., Dai, H.T., Sheng, O.Y., Breese, M.B.H., Raszewski, Z. (2009-07-01). Electrically switchable computer-generated hologram using a liquid crystal cell with a proton beam patterned polymethylmethacrylate substrate. Applied Optics 48 (19) : 3766-3770. ScholarBank@NUS Repository. https://doi.org/10.1364/AO.48.003766
Abstract: An electrically switchable computer-generated hologram (CGH) was fabricated using a liquid crystal (LC) cell. A polymethylmethacrylate (PMMA) film, which was spin-coated onone glass substrate of the L Cell, was patterned by a focused 2MeV proton beam with a CGH phase pattern (2μm resolution). With an applied voltage on the LC cell CGH sample, an index modulation was produced between the regions with and without PMMA because of the reorientation of LC molecules under the external electric field. The maximum diffraction efficiency measured was about 28.7%. The operating voltage was below 15Vrms. © 2009 Optical Society of America.
Source Title: Applied Optics
URI: http://scholarbank.nus.edu.sg/handle/10635/96399
ISSN: 1559128X
DOI: 10.1364/AO.48.003766
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