Abstract

We propose a method of representing binary data by modulating both the intensity and the phase of beams with a twisted-nematic liquid-crystal display. With our method it is possible to reduce the dc component of the data image and thus improve the beam-intensity uniformity at the holographic recording plane when one is recording Fourier-plane holograms to obtain maximal areal storage density in disk-shaped storage media. The feasibility of our method is demonstrated experimentally.

© 2001 Optical Society of America

Amplitude, phase, and hybrid ternary modulation modes of a twisted-nematic liquid-crystal display at ∼400 nm

Judit Reményi, Péter Várhegyi, László Domján, Pál Koppa, and Emõke Lõrincz
Appl. Opt. 42(17) 3428-3434 (2003)

Phase-only modulation with a twisted nematic liquid crystal display by means of equi-azimuth polarization states

V. Durán, J. Lancis, E. Tajahuerce, and M. Fernández-Alonso
Opt. Express 14(12) 5607-5616 (2006)

Complex modulation with a twisted-nematic liquid-crystal spatial light modulator: double-pixel approach

Victor Arrizón
Opt. Lett. 28(15) 1359-1361 (2003)

Extended phase modulation depth in twisted nematic liquid crystal displays

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Appl. Opt. 49(30) 5929-5937 (2010)

Improvement of the performance of the twisted-nematic liquid-crystal display as a phase modulator

Baiheng Ma, Baoli Yao, Ze Li, and Tong Ye
Appl. Opt. 50(17) 2588-2593 (2011)