Abstract

A comparative study of two types of optically controlled structures with a modulating liquid-crystal layer and antimonite (Sb2S3) or arsenic selenide (As<sub>40</sub>Se<sub>60</sub>) as the photoconductor has been carried out. It is shown that diffraction efficiency up to 42% was able to be obtained in the reversible thin-hologram recording regime, while the use of a photoconductor layer whose maximum spectral sensitivity is close to the radiation wavelength of a He-Ne laser provided sensitivity of 0.75 µW/cm<sup>2</sup> at a recording wavelength of lambda=633nm. The structures considered here are characterized by the presence of a decreasing section of the modulation response, with a falloff of the diffraction efficiency to 0.05 epsilon<sub>max</sub> (for an Sb2S3 photoconductor layer) and 0.01 epsilon<sub>max</sub> (for an As<sub>40</sub>Se<sub>60</sub> photoconductor layer), because of which they can be used in holographic correlation systems for implementing nonlinear information-processing algorithms. © 2005 Optical Society of America

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription