Large prolongation of free-exciton photoluminescence decay in diamond by two-photon excitation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10123636" target="_blank" >RIV/00216208:11320/12:10123636 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/" target="_blank" >http://dx.doi.org/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OL.37.002049" target="_blank" >10.1364/OL.37.002049</a>

Result language
angličtina
Original language name
Large prolongation of free-exciton photoluminescence decay in diamond by two-photon excitation
Original language description
We report on time-resolved photoluminescence of a free-exciton in IIa chemical vapor deposition diamond crystal. Large difference between decay times for one-and two-photon excitation processes was observed. The longest room-temperature exciton photoluminescence lifetime tau(FE) = 220 ns was obtained under two-photon excitation with a photon energy of 4.7 eV. The role of diffusion and surface recombination velocity in exciton photoluminescence dynamics was studied using a new optical method based on two-photon excited time-resolved photoluminescence. The measured room-temperature value of diffusion coefficient in diamond was D = 40 cm(2)/s. (C) 2012 Optical Society of America
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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