Journal of Physical Chemistry & Biophysics
Open Access
ISSN: 2161-0398
ISSN: 2161-0398
Vera Marinova1,2, Etienne Goovaerts3, Ren Chung Liu2, Shiuan Huei Lin4, Yi Hsin Lin2 and Ken Yuh Hsu2
1Institute of Optical Materials and Technologies, Bulgaria 2National Chiao Tung University, Taiwan 3University of Antwerpen, Belgium 4National Chiao Tung University, Taiwan
Posters-Accepted Abstracts: J Phys Chem Biophys
Development of advanced hybrid structures assembled by combination of organic and inorganic materials attract essential scientific and technological interest in order to meet the requirements of 3D display technologies, optical processing and light manipulation. The outstanding properties as large anisotropy and strong birefringence typical for organics and high photosensitivity and charge carrier motilities of in organics open possibilities to optimize their properties independently and combine them into a single device with enhanced functionality. We report a hybrid device, based on excellent photoconductivity of doped Sillenite photorefractive crystals and strong birefringence of polymer dispersed liquid crystal (PDLC) layer Lightinduced properties of doped Sillenite crystals have been studied by time-resolved spectroscopy. The photo-excited charge carriers generated in photorefractive substrate create an optically induced space charge field, sufficient to penetrate into the PDLC layer and to re-orient the LC molecules inside the droplets. Beam-coupling measurements at Bragg regime are performed showing prospective amplification values and high spatial resolution. The proposed novel organic-inorganic hybrid structure is simple and easy to fabricate, without requirements for conductive layer deposition (ITO contacts), alignment layers and use of polarizers. Such device allows all the processes to be controlled by light, thus opens further potential for real-time image processing at the near infrared spectral range.
Email: vmarinova@iomt.bas.bg