| Issue |
Europhys. Lett.
Volume 70, Number 4, May 2005
|
|
|---|---|---|
| Page(s) | 471 - 477 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2004-10504-y | |
| Published online | 13 April 2005 | |
Holographic scattering in the ultraviolet spectral range in iron-doped lithium niobate
1
Institut für Experimentalphysik, Universität Wien Boltzmanngasse 5, A-1090 Wien, Austria
2
Institut für Mineralogie, Universität zu Köln Zülpicherstr. 49b, D-50674 Köln, Germany
Corresponding author: martin.fally@univie.ac.at
Received:
16
November
2004
Accepted:
22
March
2005
Photo-induced light scattering in iron-doped lithium niobate
crystals is investigated at different wavelengths in the near
ultraviolet spectral range. We observed a remarkable difference
of the angular distribution of scattered light when changing the
pump wavelength. These findings can be explained by the spectral
dependence of the competing recording mechanisms photovoltaic
effect and diffusion. We found that the magnitude of the
photovoltaic effect is decreasing from 364
to 334,
and diffusion becomes the dominant charge transport mechanism for
photorefraction.
PACS: 42.25.Fx – Diffraction and scattering / 42.40.Ht – Hologram recording and readout methods / 42.65.Hw – Phase conjugation; photorefractive and Kerr effects
© EDP Sciences, 2005
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