Extracting quantitative dielectric properties from pump-probe spectroscopy

Arjun Ashoka; Ronnie R. Tamming; Aswathy V. Girija; Hope Bretscher; Sachin Dev Verma; Shang-Da Yang; Chih-Hsuan Lu; Justin M. Hodgkiss; David Ritchie; Chong Chen; Charles G. Smith; Christoph Schnedermann; Michael B. Price; Kai Chen; Akshay Rao

doi:10.1038/s41467-022-29112-y

Nature Communications (Mar 2022)

Extracting quantitative dielectric properties from pump-probe spectroscopy

Arjun Ashoka,
Ronnie R. Tamming,
Aswathy V. Girija,
Hope Bretscher,
Sachin Dev Verma,
Shang-Da Yang,
Chih-Hsuan Lu,
Justin M. Hodgkiss,
David Ritchie,
Chong Chen,
Charles G. Smith,
Christoph Schnedermann,
Michael B. Price,
Kai Chen,
Akshay Rao

Affiliations

Arjun Ashoka: Cavendish Laboratory, University of Cambridge
Ronnie R. Tamming: Robinson Research Institute, Faculty of Engineering, Victoria University of Wellington
Aswathy V. Girija: Cavendish Laboratory, University of Cambridge
Hope Bretscher: Cavendish Laboratory, University of Cambridge
Sachin Dev Verma: Cavendish Laboratory, University of Cambridge
Shang-Da Yang: Institute of Photonics Technologies, National Tsing Hua University
Chih-Hsuan Lu: Institute of Photonics Technologies, National Tsing Hua University
Justin M. Hodgkiss: School of Chemical and Physical Sciences, Victoria University of Wellington
David Ritchie: Cavendish Laboratory, University of Cambridge
Chong Chen: Cavendish Laboratory, University of Cambridge
Charles G. Smith: Cavendish Laboratory, University of Cambridge
Christoph Schnedermann: Cavendish Laboratory, University of Cambridge
Michael B. Price: School of Chemical and Physical Sciences, Victoria University of Wellington
Kai Chen: Robinson Research Institute, Faculty of Engineering, Victoria University of Wellington
Akshay Rao: Cavendish Laboratory, University of Cambridge

DOI: https://doi.org/10.1038/s41467-022-29112-y
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 8

Abstract

Read online

Photoinduced changes in transmission, reflection and scattering prevent conventional pump-probe spectroscopy to unambiguously assign the origin of spectral signatures. Ashoka et al. have developed an optical modelling technique to extract quantitative and unambiguous changes in the dielectric function from standard pump-probe measurements.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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