Group Delay Dispersion Measurements on Mid-Infrared Supermirrors

Ulrich Galander; Maximilian Prinz; Lukas W. Perner; Oliver H. Heckl

doi:10.1002/adom.202500727

Group Delay Dispersion Measurements on Mid-Infrared Supermirrors

Ulrich Galander (Korresp. Autor*in)
, Maximilian Prinz
, Lukas W. Perner
, Oliver H. Heckl (Korresp. Autor*in)

Fakultätszentrum für Nanostrukturforschung

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

Methods and results for broadband group delay dispersion measurements of monocrystalline and amorphous-crystalline hybrid supermirrors, as well as an all-amorphous mirror, are presented. Measurements are performed with a custom-built white light interferometer covering a spectral range from 2.5 to 4.8 (Formula presented.), capable of measuring in both balanced and unbalanced measurement configuration. The results are compared with theoretical transfer-matrix method simulations and an independent measurement using a commercial Fourier-transform infrared spectrometer. Additionally, group delay dispersion is investigated by direct differentiation using a local polynomial smoothing approach (Savitzky-Golay filter), and strong consistency is observed between the measurement results, the theoretical prediction, and the estimation using this method.

Originalsprache	Englisch
Aufsatznummer	e00727
Fachzeitschrift	Advanced Optical Materials
Jahrgang	14
Ausgabenummer	3
Frühes Online-Datum	26 Okt. 2025
DOIs	https://doi.org/10.1002/adom.202500727
Publikationsstatus	Veröffentlicht - 19 Jan. 2026

Fördermittel

This research was funded in whole or in part by the Austrian Science Fund (FWF)[10.55776/P36040]. For open access purposes, the author has applied a CC BY public copyright license to any author accepted manuscript version arising from this submission. The financial support by the Austrian Federal Ministry of Labour and Economy, the National Foundation for Research, Technology and Development and the Christian Doppler Research Association is gratefully acknowledged. The authors thank Dido Denier van der Gon (University of Vienna) for assistance with the Bruker Vertex 80v, Dr. Valentin Wittwer (University of Neuchâtel) for discussions and data on IBS materials, and Dr. Garrett Cole, Dr. Gar-Wing Truong (Thorlabs Crystalline Solutions), and Dr. Adam J. Fleisher (NIST) for providing the monocrystalline and amorphous-crystalline samples. The authors also thank Martin Haberl for welding the vacuum chamber. Instrument identification in this paper is solely for experimental clarity and does not imply endorsement. Artificial intelligence tools were used for grammar checking and typesetting to enhance readability.

ÖFOS 2012

210002 Nanobiotechnologie

Zugriff auf Dokument

10.1002/adom.202500727Lizenz: CC BY 4.0

https://phaidra.univie.ac.at/o:2192807Lizenz: CC BY 4.0

Andere Dateien und Links

Verknüpfung zur Publikation in Scopus

1 Abgeschlossen
1 Laufend

Dopplerfreie Frequenzkammspektroskopie
Heckl, O. H. (Projektleiter*in)
6/07/22 → 5/07/26
Projekt: Forschungsförderung
CDL Mid-IR: CD-Labor für Mid-IR Spektroskopie und Halbleiter Optik
Heckl, O. H. (Projektleiter*in) & Simon, Y. (Projektadministrator*in)
1/01/17 → 29/02/24
Projekt: Forschungskooperation

Zitationsweisen

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title = "Group Delay Dispersion Measurements on Mid-Infrared Supermirrors",

abstract = "Methods and results for broadband group delay dispersion measurements of monocrystalline and amorphous-crystalline hybrid supermirrors, as well as an all-amorphous mirror, are presented. Measurements are performed with a custom-built white light interferometer covering a spectral range from 2.5 to 4.8 (Formula presented.), capable of measuring in both balanced and unbalanced measurement configuration. The results are compared with theoretical transfer-matrix method simulations and an independent measurement using a commercial Fourier-transform infrared spectrometer. Additionally, group delay dispersion is investigated by direct differentiation using a local polynomial smoothing approach (Savitzky-Golay filter), and strong consistency is observed between the measurement results, the theoretical prediction, and the estimation using this method.",

keywords = "crystalline supermirrors, group delay dispersion, mid-infrared spectral regime, semiconductor optics, ultrafast optics, white light interferometry",

author = "Ulrich Galander and Maximilian Prinz and Perner, \{Lukas W.\} and Heckl, \{Oliver H.\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Author(s). Advanced Optical Materials published by Wiley-VCH GmbH.",

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doi = "10.1002/adom.202500727",

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AU - Galander, Ulrich

AU - Prinz, Maximilian

AU - Perner, Lukas W.

AU - Heckl, Oliver H.

PY - 2026/1/19

Y1 - 2026/1/19

N2 - Methods and results for broadband group delay dispersion measurements of monocrystalline and amorphous-crystalline hybrid supermirrors, as well as an all-amorphous mirror, are presented. Measurements are performed with a custom-built white light interferometer covering a spectral range from 2.5 to 4.8 (Formula presented.), capable of measuring in both balanced and unbalanced measurement configuration. The results are compared with theoretical transfer-matrix method simulations and an independent measurement using a commercial Fourier-transform infrared spectrometer. Additionally, group delay dispersion is investigated by direct differentiation using a local polynomial smoothing approach (Savitzky-Golay filter), and strong consistency is observed between the measurement results, the theoretical prediction, and the estimation using this method.

AB - Methods and results for broadband group delay dispersion measurements of monocrystalline and amorphous-crystalline hybrid supermirrors, as well as an all-amorphous mirror, are presented. Measurements are performed with a custom-built white light interferometer covering a spectral range from 2.5 to 4.8 (Formula presented.), capable of measuring in both balanced and unbalanced measurement configuration. The results are compared with theoretical transfer-matrix method simulations and an independent measurement using a commercial Fourier-transform infrared spectrometer. Additionally, group delay dispersion is investigated by direct differentiation using a local polynomial smoothing approach (Savitzky-Golay filter), and strong consistency is observed between the measurement results, the theoretical prediction, and the estimation using this method.

KW - crystalline supermirrors

KW - group delay dispersion

KW - mid-infrared spectral regime

KW - semiconductor optics

KW - ultrafast optics

KW - white light interferometry

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DO - 10.1002/adom.202500727

M3 - Article

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JO - Advanced Optical Materials

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ER -

Group Delay Dispersion Measurements on Mid-Infrared Supermirrors

Abstract

Fördermittel

ÖFOS 2012

Zugriff auf Dokument

Andere Dateien und Links

Fingerprint

Projekte

Dopplerfreie Frequenzkammspektroskopie

CDL Mid-IR: CD-Labor für Mid-IR Spektroskopie und Halbleiter Optik

Zitationsweisen