Abstract

We report an experimental procedure for achieving spatial modulation of the phase of an input wave field with an off-the-shelf twisted nematic liquid crystal display. This method involves illumination of an addressed liquid crystal display (LCD) with circularly polarized light and measurement of the Stokes parameters of the outgoing beam as the applied voltage is changed. The analysis of the distribution of the polarization states in the <i>S</i><sub>1</sub>-<i>S</i><sub>2</sub> plane suggests a simple way to optimize the liquid crystal phase response by means of a properly oriented quarter wave-plate followed by an analyzer. Laboratory results for a commercial display are presented. A phase modulation depth of 240° is obtained at 514 nm with a residual intensity variation which is lower than 4%.

© 2007 IEEE

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Appl. Opt. (2)

J. Appl. Phys. (1)

V. Durán, J. Lancis, E. Tajahuerce, Z. Jaroszewicz, "Equivalent retarder-rotator approach to on-state twisted nematic liquid crystal displays," J. Appl. Phys. 99, 113101-113106 (2006).

J. Phys. D (1)

C. H. Gooch, H. A. Tarry, "Optical-properties of twisted nematic liquid-crystal structures with twist angles less than 90 degrees," J. Phys. D 8, 1575-1584 (1975).

J. Appl. Phys. (2)

I. Moreno, P. Velásquez, C. R. Fernández-Pousa, M. M. Sánchez-López, F. Mateos, "Jones matrix method for predicting and optimizing the optical modulation properties of a liquid-crystal display," J. Appl. Phys. 94, 3697-3702 (2003).

V. Durán, J. Lancis, E. Tajahuerce, Z. Jaroszewicz, "Cell parameter determination of a twisted-nematic liquid crystal display by single-wavelength polarimetry," J. Appl. Phys. 97, (2005) 043101.

J. Display. Technol. (1)

S. T. Tang, H. S. Kwok, "Characteristic parameters of liquid crystal cells and their measurements," J. Display. Technol. 2, 26-31 (2006).

J. Opt. Soc. Amer. A (1)

V. Arrizón, J. Ojeda-Castañeda, "Irradiance at Fresnel planes of a phase grating," J. Opt. Soc. Amer. A 9, 1801-1806 (1992).

Opt. Eng. (1)

A. Serrano-Heredia, G. W. Lu, P. Purwosumarto, F. T. S. Yu, "Measurement of the phase modulation in liquid crystal television based on the fractional-Talbot effect," Opt. Eng. 35, 2680-2684 (1996).

Opt. Eng. (1)

A. Márquez, C. Iemmi, I. Moreno, J. A. Davis, J. Campos, M. J. Yzuel, "Quantitative prediction of the modulation behavior of twisted nematic liquid crystal displays based on a simple physical model," Opt. Eng. 40, 2558-2564 (2001).

Opt. Expr. (1)

V. Durán, J. Lancis, E. Tajahuerce, M. Fernández-Alonso, "Phase-only modulation with a twisted nematic liquid crystal display by means of equi-azimuth polarization states," Opt. Expr. 14, 5607-5616 (2006).

Opt. Lett. (2)

Optik (1)

Z. Jaroszewicz, A. Kolodziejczyk, A. Kowalik, R. Restrepo, "Determination of the step height of the binary phase grating from its Fresnel images," Optik 111, 207-210 (2000).

Physics Rep. (1)

R. Bhandari, "Polarization of light and topological phases," Physics Rep. 281, 1-64 (1997).

Other (3)

R. M. A. Azzam, N. M. Bashara, Ellipsometry and Polarized Light (Elsevier, 1987).

C. Brosseau, Fundamentals of Polarized Light: A Statistical Optics Approach (Wiley, 1998) pp. 227.

P. Yeh, C. Gu, Optics of Liquid Crystal Displays (Wiley, 1999) pp. 163.

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