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Journal articles
Photorefractive effect generated in sillenite crystals by picosecond pulses and comparison with the quasi continuous regime
Abstract : Photorefractive gratings are generated in a BSO crystal by the interference of two 25-psec pulses at 532 nm. The grating is analyzed by diffraction of a third pulse or a weak cw argon laser, which permits a continuous monitoring of its evolution from picoseconds to milliseconds. The grating builds up in two steps; their relative contributions vary strongly with fluence. This behavior is explained by means of a band transport model with shallow traps. Values of mobility, lifetimes, and diffusion lengths of carriers are derived and compared with those obtained in experiments conducted with low-power lasers; the values show a striking continuity from cw to picosecond regimes.
Cited literature [20 references]
https://hal-iogs.archives-ouvertes.fr/hal-00856195
Contributor : Fatima Pereira Connect in order to contact the contributor
Submitted on : Friday, August 30, 2013 - 3:46:38 PM
Last modification on : Wednesday, October 14, 2020 - 4:08:14 AM
Long-term archiving on: : Thursday, April 6, 2017 - 11:17:14 AM
Contributor : Fatima Pereira Connect in order to contact the contributor
Submitted on : Friday, August 30, 2013 - 3:46:38 PM
Last modification on : Wednesday, October 14, 2020 - 4:08:14 AM
Long-term archiving on: : Thursday, April 6, 2017 - 11:17:14 AM
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