dc.date.accessioned 2015-06-03T13:52:51Z dc.date.available 2015-06-03T13:52:51Z dc.identifier.uri http://digital.cic.gba.gob.ar/handle/11746/567 dc.title On the origin of the acoustic signals generated in KDP by pulsed UV laser excitation en dc.type Artículo es dcterms.abstract The origin of the acoustic signals that are generated in the bulk of a KDP crystal during irradiation with short UV laser pulses is determined. The generation of these signals by excitation with moderate or high optical fluences is linked to the evolution of the population of point defects that is generated in the crystal by absorption of two UV photons. These defects are bleached due to their efficient linear absorption of UV radiation, and their non-radiative relaxation is shown to be the origin of the acoustic signals. The rate constants for the different processes involved in both the linear and the non-linear interactions were determined from the experiments presented here. Characteristic values for the quantum efficiency for the generation of defects, $η_{F} = 0.95 ± 0.05$, and for the quantum efficiency for bleaching of defects, $η_{B} = 0.065 ± 0.005$, were obtained for 266-nm laser radiation. The model developed for the intensity of the acoustic signals reproduces the experimental facts with very good accuracy. en dcterms.extent p. 535-539 es dcterms.issued 2005-02-24 dcterms.language Inglés es dcterms.license Attribution 4.0 International (BY 4.0) es dcterms.publisher Centro de Investigaciones Ópticas (CIOP) es dcterms.relation 30 años (1977-2007): Centro de Investigaciones Ópticas (CIOp) es dcterms.subject Potassium Dihydrogen Phosphate en dcterms.subject Gamma-Irradiated Kh2po4 en dcterms.subject Optical-Absorption en dcterms.subject crystals en dcterms.subject luminescence en cic.version info:eu-repo/semantics/submittedVersion es dcterms.creator.author Martínez Matos, Oscar es dcterms.creator.author Torchia, Gustavo Adrián es dcterms.creator.author Bilmes, Gabriel Mario es dcterms.creator.author Tocho, Jorge Omar es dcterms.creator.author Ranea Sandoval, Ignacio es cic.lugarDesarrollo Centro de Investigaciones Ópticas es dcterms.subject.materia Ciencias Físicas es dcterms.isPartOf.issue 80 es dcterms.isPartOf.series Applied Physics B: Lasers and Optics en cic.isPeerReviewed true es cic.isFulltext true es
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