Direct near infrared photorefractive recording and pre-exposure controlled hole-electron competition with enhanced recording in undoped Bi12TiO20

We report the direct recording of electron-based photorefractive hologram in nominally undoped Bi12TiO20 crystals using 780 nm wavelength light without pre-exposure or any kind of previous processing. A lower intensity absorption grating is also detected. Pre-exposure with shorter wavelength produce...

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Bibliographic Details
Published inApplied physics. B, Lasers and optics Vol. 81; no. 5; pp. 651 - 655
Main Authors DOS SANTOS, P. V, REJLICH, J, CARVALHO, J. F
Format Journal Article
LanguageEnglish
Published Berlin Springer 01.09.2005
Subjects
Condensed matter: structure, mechanical and thermal properties
Diffraction gratings
Electron diffraction and scattering
Electron holography
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gratings (spectra)
Holograms
Holography
Infrared
Lasers
Optical materials
Optics
Other nonlinear optical materials; photorefractive and semiconductor materials
Physics
Recording
Structure of solids and liquids; crystallography
Wavelengths
Photorefractive effect
Optical recording
Preexposure
Ternary compounds
Holography
Recording material
Mid infrared radiation
Experimental study
Bismuth Titanates
Holograms
Electron holography
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Summary:We report the direct recording of electron-based photorefractive hologram in nominally undoped Bi12TiO20 crystals using 780 nm wavelength light without pre-exposure or any kind of previous processing. A lower intensity absorption grating is also detected. Pre-exposure with shorter wavelength produces an extended lifetime hole-based complementary grating on another photoactive center level and leads to enhanced recording.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-005-1935-x