Title :
Near infrared steady state photorefractive self focusing in Sn2P2S6:Te crystals
Author :
Dan, Cristian ; Wolfersberger, Delphine ; Fressengeas, Nicolas ; Montemezzani, Germano ; Grabar, Alexander A.
Author_Institution :
Unite de Recherche Commune a l\´\´Univ. "Paul Verlaine" et Supelec, Metz
Abstract :
Tin hypothiodiphosphate (SPS) is a wide band gap semiconductor ferroelectric that has interesting properties for photorefractive (PR) applications such as high two wave mixing gains, large transparency window coupled with a fast response time and a large electro-optic coefficient. Taking into account all SPS characteristics, its behavior is investigated with respect to photorefractive self focusing in the near IR in the aim of identifying its potential for the creation of self induced optical waveguides. The performed experiments show that the steady state is reached faster than the exposure time of the CCD camera used.
Keywords :
electro-optical effects; ferroelectric materials; multiwave mixing; optical self-focusing; optical waveguides; photorefractive materials; tellurium; tin compounds; wide band gap semiconductors; CCD camera; Sn2P2S6:Te; electro-optic coefficient; near infrared steady state photorefractive self focusing; self induced optical waveguides; tin hypothiodiphosphate; transparency window; two wave mixing gain; wide band gap semiconductor ferroelectrics; Charge coupled devices; Charge-coupled image sensors; Delay; Ferroelectric materials; Optical mixing; Optical waveguides; Photorefractive effect; Steady-state; Tin; Wide band gap semiconductors;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386070
