Optodielectrophoretic hologram recording in hybrid liquid crystals devices
2012
Optodielectrophoresis has been shown to be an interesting tool for massive manipulation of microparticles using external
electric fields. Here, no electrode fabrication is need it since they are created by the light distribution incident onto a
photoconducting material. We propose the use of this device for the recording of dynamic holograms in hydrogenated
amorphous silicon (a:Si-H)-liquid crystals hybrid devices. The device consists of 5CB liquid crystal sandwiched between
a photoconductive a:Si-H substrate and an ITO covered glass-plate. Diffraction efficiency of 3.3% is obtained when
holograms are recorded with a low power He-Ne laser.
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