Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 6, 2011
|
|
---|---|---|
Article Number | 11012s | |
Number of page(s) | 6 | |
DOI | https://doi.org/10.2971/jeos.2011.11012s | |
Published online | 18 April 2011 |
Regular papers
Characterization of the anamorphic and spatial frequency dependent phenomenon in Liquid Crystal on Silicon displays
1
Departamento de Física, Universidad Autónoma de Barcelona, 08193 Bellaterra, Spain
2
Dept. de Física, Ingeniería de Sistemas y Teoría de la Se ñal, Universidad de Alicante, Ap. 99, 03080 Alicante, Spain
3
Dept. de Ciencia de Materiales, Óptica y Tecnología Electrónica, Universidad Miguel Hernández, Elche, Spain
4
Dept. de Física, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Received:
29
April
2010
The diffractive efficiency of Liquid Crystal on Silicon (LCoS) displays can be greatly diminished by the appearance of temporal phase fluctuations in the reflected beam, depolarization effects and also because of phase modulation depths smaller than 2π. In order to maximize the efficiency of the Diffractive Optical Elements (DOEs) implemented in the LCoS device, the Minimum Euclidean Distance principle can be applied. However, not all the diffractive elements can be corrected in the same way due to the anamorphic and spatial frequency dependent phenomenon, which is related to the LCoS response, largely depending on the period and the spatial orientation of the generated DOE. Experimental evidence for the anamorphic and spatial frequency dependent phenomenon is provided in this paper, as well as a comparative study between the LCoS display response for binary gratings of different periods.
Key words: LCoS device / anamorphic phenomenon / diffractive optical element / global retardance / diffractive efficiency
© The Author(s) 2011. All rights reserved.
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