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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 10 — Oct. 1, 1998
  • pp: 2586–2592

Theoretical and experimental study of spatial resolution in quantum-well spatial light modulators

Carlos De Matos, Laurent Bramerie, and Alain Le Corre  »View Author Affiliations


JOSA B, Vol. 15, Issue 10, pp. 2586-2592 (1998)
http://dx.doi.org/10.1364/JOSAB.15.002586


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Abstract

The spatial resolution of optically addressed spatial light modulators operating in longitudinal-field Stark geometry is reduced mainly by the lateral diffusion of carriers parallel to the plane of the wells. We describe two-dimensional transport modeling within a self-consistently small amplitude approximation. An analytical expression for the carrier’s spatial modulation rate is obtained and demonstrates that the spatial resolution is characterized by the velocity anisotropy. We compare our analytical model with experimental results obtained for a GaAs/AlGaAs system (devices operating at 0.8-μm wavelength) and for a InGaAs/InGaAsP system (devices operating at 1.55-μm wavelength). Good agreement between the theoretical and the experimental results is achieved.

© 1998 Optical Society of America

OCIS Codes
(160.5320) Materials : Photorefractive materials
(160.6000) Materials : Semiconductor materials
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(230.1950) Optical devices : Diffraction gratings
(230.2090) Optical devices : Electro-optical devices
(230.6120) Optical devices : Spatial light modulators

Citation
Carlos De Matos, Laurent Bramerie, and Alain Le Corre, "Theoretical and experimental study of spatial resolution in quantum-well spatial light modulators," J. Opt. Soc. Am. B 15, 2586-2592 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-10-2586

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