Photo-electromotive-force from volume speckle pattern vibration with large amplitude

Autor:	Jaime Frejlich, T. O. dos Santos, Jean-Claude Launay
Rok vydání:	2008
Předmět:	Materials science Electromotive force business.industry Physics::Optics General Physics and Astronomy Photorefractive effect Signal Vibration Crystal Condensed Matter::Materials Science Speckle pattern Wavelength Optics Amplitude business
Zdroj:	Journal of Applied Physics. 103:113104
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.2938061
Popis:	We report an accurate mathematical model describing the photo-electromotive-force signal produced by a speckle pattern of light vibrating in the volume of a photorefractive crystal with a large transverse amplitude. Our model shows that, for vibrations much faster than the material response time, the first harmonic term of the photo-electromotive-force signal exhibits a maximum at a characteristic value of the vibration-amplitude-to-speckle-size ratio that depends on the dark-to-photoconductivity ratio in the material. The theoretical results are in good agreement with experimental data from a vanadium-doped photorefractive CdTe (CdTe:V) crystal under 1064nm wavelength illumination.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ffd88177854941ea3111a2856d7c3949 https://doi.org/10.1063/1.2938061 Zobrazit plný text záznamu