Dispersion model of two-phonon absorption: application to c-Si

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00073318" target="_blank" >RIV/00216224:14310/14:00073318 - isvavai.cz</a>
Result on the web
<a href="http://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww.opticsinfobase.org%2FDirectPDFAccess%2FB9069063-9DEF-05B1-C29672DD04E649DB_296190%2Fome-4-8-1641.pdf%3Fda%3D1%26id%3D296190%26seq%3D0%26mobile%3Dno&org=" target="_blank" >http://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww.opticsinfobase.org%2FDirectPDFAccess%2FB9069063-9DEF-05B1-C29672DD04E649DB_296190%2Fome-4-8-1641.pdf%3Fda%3D1%26id%3D296190%26seq%3D0%26mobile%3Dno&org=</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OME.4.001641" target="_blank" >10.1364/OME.4.001641</a>

Result language
angličtina
Original language name
Dispersion model of two-phonon absorption: application to c-Si
Original language description
A dispersion model describing two-phonon absorption is developed using several simplifications of the quasiparticle approach. The dielectric response is constructed from absorption bands corresponding to individual additive and subtractive combinations of phonon branches. The model also includes thermal effects, changes of the transition strength with temperature, originating in Bose-Einstein statistics, and the shift of phonon frequencies accompanying thermal expansion. The model is applied to the analysis of experimental data measured in the IR range on crystalline silicon. The modeled spectral dependencies of optical constants are capable of describing all features in the transmittance spectra 70-1000 cm(-1) observable at 300K for float-zone silicon. The phonon frequencies in the points of symmetry are obtained independently in good agreement with ab initio calculations. The model of thermal effects is verified using ellipsometric measurements 300-1000 cm(-1) in the temperature rang
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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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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