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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 22 — Aug. 1, 2013
  • pp: E73–E77

Transmissive liquid crystal light-valve for near-infrared applications

Umberto Bortolozzo, Stefania Residori, and Jean-Pierre Huignard  »View Author Affiliations

Applied Optics, Vol. 52, Issue 22, pp. E73-E77 (2013)

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An optical valve is realized by associating a nematic liquid crystal layer with a Cr-doped gallium arsenide as a photoconductive substrate. The light-valve is shown to efficiently operate in transmission at 1.06 μm optical wavelength. The optical phase shift and refractive index change are measured as a function of the incident light intensity and of the voltage applied. Additionally, the light-valve is shown to act as a self-defocusing medium. Combining transmissive properties and nonlinear features, applications for dynamic holography in the near-infrared region of the spectrum can be envisaged.

© 2013 Optical Society of America

OCIS Codes
(040.3060) Detectors : Infrared
(090.2880) Holography : Holographic interferometry
(160.3710) Materials : Liquid crystals
(070.6120) Fourier optics and signal processing : Spatial light modulators

Original Manuscript: January 11, 2013
Revised Manuscript: March 4, 2013
Manuscript Accepted: March 14, 2013
Published: July 15, 2013

Virtual Issues
Hybrid Organic-Inorganic Materials for Novel Photonic Applications (2013) Optical Materials Express

Umberto Bortolozzo, Stefania Residori, and Jean-Pierre Huignard, "Transmissive liquid crystal light-valve for near-infrared applications," Appl. Opt. 52, E73-E77 (2013)

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