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Applied Physics Letters / Volume 100 / Issue 6 / PHOTONICS AND OPTOELECTRONICS

Appl. Phys. Lett. 100, 061108 (2012); http://dx.doi.org/10.1063/1.3683514 (3 pages)

Fourier-transform photocurrent spectroscopy using a supercontinuum light source

Christian Petermann1, Rene Beigang2, and Peer Fischer3

1Fraunhofer Institute for Physical Measurement Techniques IPM, 79112 Freiburg, Germany
2University of Kaiserslautern and Fraunhofer IPM, 67663 Kaiserslautern, Germany
3Max-Planck-Institute for Intelligent Systems, 70569 Stuttgart, Germany

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(Received 21 December 2011; accepted 19 January 2012; published online 7 February 2012)

We demonstrate an implementation of frequency-encoded photocurrent spectroscopy using a super-continuum light source. The spectrally broad light is spatially dispersed and modulated with a special mechanical chopper design that permits a continuous wavelength-dependent modulation. After recombination, the light beam contains a frequency encoded spectrum which enables us to map the spectral response of a given sample in 60 ms and with a lateral resolution of 10 μm.

© 2012 American Institute of Physics

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KEYWORDS, PACS, and IPC

Keywords

Fourier transform spectroscopy, optical modulation, photoconductivity, photoelectron spectra, supercontinuum generation

PACS

  • 07.57.Ty

    Infrared spectrometers, auxiliary equipment, and techniques

  • 79.60.-i

    Photoemission and photoelectron spectra

  • 72.40.+w

    Photoconduction and photovoltaic effects

  • 42.65.-k

    Nonlinear optics

International Patent Classification (IPC)

  • G01J3/00

    Spectrometry; Spectrophotometry; Monochromators; Measuring colours

  • G02F1/35

    Non-linear optics

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3683514

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    G. Segschneider, T. Dekorsy, H. Kurz, R. Hey, and K. Ploog, Appl. Phys. Lett. 71, 2779 (1997)APPLAB000071000019002779000001.

    M. Tani, K.-S. Lee, and X.-C. Zhang, Appl. Phys. Lett. 77, 1396 (2000)APPLAB000077000009001396000001.


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