OULD-HAMOUDA, Amine; TOKORO, Hiroko; OHKOSHI, Shin-Ichi; FREYSZ, Eric

doi:10.1016/j.cplett.2014.05.073

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OULD-HAMOUDA, Amine
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

TOKORO, Hiroko
Department of Chemistry

OHKOSHI, Shin-Ichi
Department of Chemistry

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Article de revue

Ce document a été publié dans

Chemical Physics Letters. 2014-07-21, vol. 608, p. 106-112

Elsevier

Résumé en anglais

We have performed single-shot time-resolved reflectivity measurements of the photo-reversible phase transition between λ- and β-phases of Ti3O5 nanoparticles at room temperature. These phase transitions are induced using nanosecond and millisecond laser pulses and are revealed by Raman spectroscopy. Upon nanosecond pulsed excitation, the λ- to β-phase transition is detected in about 900 ns, whereas the β- to λ-phase transition is noticed in less than 20 ns. The λ- to β-phase transition induced by quasi continuous wave laser happens on the millisecond time scale. We propose a scenario that accounts very well for the observed phenomena.< Réduire

DOI

http://dx.doi.org/10.1016/j.cplett.2014.05.073

Project ANR

Vers une génération de Gel-Coats Intelligents : thermo- et/ou photosensibles - ANR-11-RMNP-0019

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Importé de hal

Unités de recherche

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798