✦ LIBER ✦

Electro-optic study of acrylate based holographic polymer dispersed liquid crystals with broad band photosensitivity

✍ Scribed by Steven Harbour; Lilit Simonyan; Tigran Galstian

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 119 KB
Volume: 277
Category: Article
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2007.04.065

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✦ Synopsis

We describe the electro-optic (EO) modulation of diffraction in holographic polymer dispersed liquid crystals, recently developed for broad band photosensitivity, ranging from visible to near infrared. More than 90% EO modulation achieved for relatively low electric fields confirms the phase separation and formation of liquid crystal sub-micrometer sized droplets in the polymer matrix. Molecular reorientation induced by the applied voltage and a residual electrical current induced heating are at the origin of the EO modulation.

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