Investigation of temporal and spatial charge dynamics by wave mixing techniques

Author

Jarasiunas, K. ; Sudzius, M. ; Aleksiejunas, Rimvydas ; Bastiene, L.

Author_Institution

Inst. of Mater. Sci. & Appl. Res., Vilnius Univ., Lithuania

fYear

2000

fDate

10-15 Sept. 2000

Abstract

Summary form only given. Summary for only given. Under spatially non-uniform photoexcitation of photorefractive crystal, a diffusive transport of high mobility carriers (electrons) builds-up a space charge field (SC) which later affects the spatial distribution both of electrons and holes. Recent studies on free carrier (FC), photorefractive (PR), and absorptive nonlinearities in GaAs and CdTe:V revealed variety of effects related to the room-temperature EL2 defect metastability and defect-association assisted carrier generation.

Keywords

carrier mobility; multiwave mixing; photoexcitation; photorefractive materials; space charge; CdTe:V; GaAs; absorptive nonlinearities; defect-association assisted carrier generation; diffusive transport; free carrier; high mobility carriers; photorefractive; photorefractive crystal; room-temperature EL2 defect metastability; space charge field; spatial charge dynamics; spatial distribution; spatially non-uniform photoexcitation; temporal charge dynamics; wave mixing techniques; Charge carrier processes; Conductivity measurement; Crystals; Force measurement; Gratings; Holographic optical components; Holography; Lithium niobate; Optical mixing; Thermal force;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on

Conference_Location

Nice

Print_ISBN

0-7803-6319-1

Type

conf

DOI

10.1109/CLEOE.2000.909893

Filename

909893