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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

OPTICAL MATERIALS EXPRESS

ISSN

2159-3930

e-ISSN

—

Svazek periodika

4

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

1641-1656

Kód UT WoS článku

000341647900016

EID výsledku v databázi Scopus

—