Time-domain photocurrent spectroscopy based on a common-path birefringent interferometer

Lukas Wolz; Constantin Heshmatpour; Antonio Perri; Dario Polli; Giulio Cerullo; Jonathan J. Finley; Erling Thyrhaug; Jürgen Hauer; Andreas V. Stier

doi:10.1063/5.0023543

Time-domain photocurrent spectroscopy based on a common-path birefringent interferometer

Lukas Wolz, Constantin Heshmatpour, Antonio Perri, Dario Polli, Giulio Cerullo, Jonathan J. Finley, Erling Thyrhaug, Jürgen Hauer, Andreas V. Stier

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We present diffraction-limited photocurrent (PC) microscopy in the visible spectral range based on broadband excitation and an inherently phase-stable common-path interferometer. The excellent path-length stability guarantees high accuracy without the need for active feedback or post-processing of the interferograms. We illustrate the capabilities of the setup by recording PC spectra of a bulk GaAs device and compare the results to optical transmission data.

Original language	English
Article number	123101
Journal	Review of Scientific Instruments
Volume	91
Issue number	12
DOIs	https://doi.org/10.1063/5.0023543
State	Published - 1 Dec 2020

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abstract = "We present diffraction-limited photocurrent (PC) microscopy in the visible spectral range based on broadband excitation and an inherently phase-stable common-path interferometer. The excellent path-length stability guarantees high accuracy without the need for active feedback or post-processing of the interferograms. We illustrate the capabilities of the setup by recording PC spectra of a bulk GaAs device and compare the results to optical transmission data.",

author = "Lukas Wolz and Constantin Heshmatpour and Antonio Perri and Dario Polli and Giulio Cerullo and Finley, \{Jonathan J.\} and Erling Thyrhaug and J{\"u}rgen Hauer and Stier, \{Andreas V.\}",

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AU - Wolz, Lukas

AU - Heshmatpour, Constantin

AU - Perri, Antonio

AU - Polli, Dario

AU - Cerullo, Giulio

AU - Finley, Jonathan J.

AU - Thyrhaug, Erling

AU - Hauer, Jürgen

AU - Stier, Andreas V.

PY - 2020/12/1

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N2 - We present diffraction-limited photocurrent (PC) microscopy in the visible spectral range based on broadband excitation and an inherently phase-stable common-path interferometer. The excellent path-length stability guarantees high accuracy without the need for active feedback or post-processing of the interferograms. We illustrate the capabilities of the setup by recording PC spectra of a bulk GaAs device and compare the results to optical transmission data.

AB - We present diffraction-limited photocurrent (PC) microscopy in the visible spectral range based on broadband excitation and an inherently phase-stable common-path interferometer. The excellent path-length stability guarantees high accuracy without the need for active feedback or post-processing of the interferograms. We illustrate the capabilities of the setup by recording PC spectra of a bulk GaAs device and compare the results to optical transmission data.

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Time-domain photocurrent spectroscopy based on a common-path birefringent interferometer

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