Title :
Optically induced ferroelectric domain gratings in SBN: theory and applications to quasi-phase matching and optical data storage
Author :
Kewitsch, Anthony S. ; Segev, Mordechai ; Saito, Akira ; Yariv, Amnon ; Salamo, Gregory J. ; Towe, Terrence W. ; Sharp, Edward J. ; Neurgaonkar, Ratnakar R.
Author_Institution :
Dept. of Appl. Phys., California Inst. of Technol., Pasadena, CA, USA
Abstract :
Illuminating a photoconducting strontium barium niobate crystal with a low intensity optical standing wave generates dynamic as well as remnant polarization gratings. We study the kinetics of these gratings and present a thermodynamic model for the grating formation. Fundamentally, light induced space charge fields dynamically modify the positions of ions within the unit cell and tailor the electronic, optical, and acoustic properties of the material
Keywords :
barium compounds; electric domains; ferroelectric materials; holographic gratings; holographic storage; optical harmonic generation; photoconducting materials; space charge; strontium compounds; SBN; SHG; SrBaNb2O6; acoustic properties; electronic properties; ferroelectric; glassy domain holograms; low intensity optical standing wave; optical data storage; optical properties; optically induced ferroelectric domain gratings; photoconducting crystal; polarization gratings; quasi-phase matching; space charge fields; thermodynamic model; Barium; Ferroelectric materials; Gratings; Kinetic theory; Niobium compounds; Optical polarization; Particle beam optics; Photoconductivity; Strontium; Thermodynamics;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522470
