Analysis of temperature-dependent and time-resolved ellipsometry spectra of Ge

Carola Emminger, Farzin Abadizaman, Nuwanjula S. Samarasingha, José Menéndez, Shirly Espinoza, Steffen Richter, Mateusz Rebarz, Oliver Herrfurth, Martin Zahradník, Rüdiger Schmidt-Grund, Jakob Andreasson, Stefan Zollner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The dielectric function of Ge measured with static and time-resolved spectroscopic ellipsometry is analyzed using linear filtering techniques to investigate the temperature dependence of the direct band gap, as well as the temporal evolvement of critical points obtained from femtosecond pumpprobe ellipsometry measurements.

Original languageEnglish (US)
Title of host publication2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665416009
DOIs
StatePublished - 2021
Event2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Virtual, Online, Mexico
Duration: Jul 19 2021Jul 21 2021

Publication series

NameLEOS Summer Topical Meeting
Volume2021-July
ISSN (Print)1099-4742

Conference

Conference2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021
Country/TerritoryMexico
CityVirtual, Online
Period7/19/217/21/21

Keywords

  • Band gap
  • Critical points
  • Ellipsometry
  • Excitons
  • Fourier transform
  • Germanium
  • Pump-probe experiments

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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