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

doi:10.1109/SUM48717.2021.9505707

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

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

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 language	English (US)
Title of host publication	2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665416009
DOIs	https://doi.org/10.1109/SUM48717.2021.9505707
State	Published - 2021
Event	2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Virtual, Online, Mexico Duration: Jul 19 2021 → Jul 21 2021

Publication series

Name	LEOS Summer Topical Meeting
Volume	2021-July
ISSN (Print)	1099-4742

Conference

Conference	2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021
Country/Territory	Mexico
City	Virtual, Online
Period	7/19/21 → 7/21/21

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

Access to Document

10.1109/SUM48717.2021.9505707

Cite this

Emminger, C., Abadizaman, F., Samarasingha, N. S., Menéndez, J., Espinoza, S., Richter, S., Rebarz, M., Herrfurth, O., Zahradník, M., Schmidt-Grund, R., Andreasson, J., & Zollner, S. (2021). Analysis of temperature-dependent and time-resolved ellipsometry spectra of Ge. In 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings (LEOS Summer Topical Meeting; Vol. 2021-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SUM48717.2021.9505707

Analysis of temperature-dependent and time-resolved ellipsometry spectra of Ge. / Emminger, Carola; Abadizaman, Farzin; Samarasingha, Nuwanjula S. et al.
2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. (LEOS Summer Topical Meeting; Vol. 2021-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Emminger, C, Abadizaman, F, Samarasingha, NS, Menéndez, J, Espinoza, S, Richter, S, Rebarz, M, Herrfurth, O, Zahradník, M, Schmidt-Grund, R, Andreasson, J & Zollner, S 2021, Analysis of temperature-dependent and time-resolved ellipsometry spectra of Ge. in 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings. LEOS Summer Topical Meeting, vol. 2021-July, Institute of Electrical and Electronics Engineers Inc., 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021, Virtual, Online, Mexico, 7/19/21. https://doi.org/10.1109/SUM48717.2021.9505707

Emminger C, Abadizaman F, Samarasingha NS, Menéndez J, Espinoza S, Richter S et al. Analysis of temperature-dependent and time-resolved ellipsometry spectra of Ge. In 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2021. (LEOS Summer Topical Meeting). doi: 10.1109/SUM48717.2021.9505707

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title = "Analysis of temperature-dependent and time-resolved ellipsometry spectra of Ge",

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.",

keywords = "Band gap, Critical points, Ellipsometry, Excitons, Fourier transform, Germanium, Pump-probe experiments",

author = "Carola Emminger and Farzin Abadizaman and Samarasingha, {Nuwanjula S.} and Jos{\'e} Men{\'e}ndez and Shirly Espinoza and Steffen Richter and Mateusz Rebarz and Oliver Herrfurth and Martin Zahradn{\'i}k and R{\"u}diger Schmidt-Grund and Jakob Andreasson and Stefan Zollner",

note = "Funding Information: This material is based upon work supported by the Air Force Office of Scientific Research under award number FA9550-20-1-0135. Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 ; Conference date: 19-07-2021 Through 21-07-2021",

year = "2021",

doi = "10.1109/SUM48717.2021.9505707",

language = "English (US)",

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AU - Abadizaman, Farzin

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AU - Menéndez, José

AU - Espinoza, Shirly

AU - Richter, Steffen

AU - Rebarz, Mateusz

AU - Herrfurth, Oliver

AU - Zahradník, Martin

AU - Schmidt-Grund, Rüdiger

AU - Andreasson, Jakob

AU - Zollner, Stefan

PY - 2021

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AB - 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.

KW - Band gap

KW - Critical points

KW - Ellipsometry

KW - Excitons

KW - Fourier transform

KW - Germanium

KW - Pump-probe experiments

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T3 - LEOS Summer Topical Meeting

BT - 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021

Y2 - 19 July 2021 through 21 July 2021

ER -

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

Abstract

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Keywords

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