Dynamics of electron-hole liquid condensation in CVD diamond studied by femtosecond pump and probe spectroscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10173366" target="_blank" >RIV/00216208:11320/13:10173366 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.diamond.2013.01.008" target="_blank" >http://dx.doi.org/10.1016/j.diamond.2013.01.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.diamond.2013.01.008" target="_blank" >10.1016/j.diamond.2013.01.008</a>

Result language

angličtina

Original language name

Dynamics of electron-hole liquid condensation in CVD diamond studied by femtosecond pump and probe spectroscopy

Original language description

We report on the femtosecond pump and probe study of the condensation dynamics of electron-hole liquid in CVD IIa type diamond. The parameters of electron-hole liquid created after carrier excitation by one- and two-photon absorption were determined on the basis of die analysis of spectral shape of time-integrated photoluminescence. The dynamics of condensation of carriers into electron-hole liquid was probed by measuring the time evolution of changes in infrared light absorption. These changes were interpreted in terms of the density dependent carrier scattering time according to the Drude model of free-carrier absorption. Measured condensation times range from 50 to 500 ps depending on the initial carrier density (3 x 10(16) cm(-3)-5 x 10(18) cm(-3))and the sample temperature (13-130 K). The measured dynamics was reproduced very well by a rate equation model of electron-hole droplet formation for low photoexcited carrier densities. A similar to 10 ps delay in initial stage of conden

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/GD202%2F09%2FH041" target="_blank" >GD202/09/H041: Physics of nanostructures</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Diamond and Related Materials

ISSN

0925-9635

e-ISSN

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Volume of the periodical

34

Issue of the periodical within the volume

January 2013

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

13-18

UT code for WoS article

000317795400003

EID of the result in the Scopus database

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