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Proceedings Paper

Two-dimensional Fourier transform optical spectroscopy of GaAs quantum wells
Author(s): Camelia N. Borca; Tianhao Zhang; Steven T. Cundiff
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Paper Abstract

Two-dimensional (2D) Fourier-transform optical spectroscopy is demonstrated on GaAs quantum wells. This technique represents a highly enhanced version of transient four-wave mixing (FWM). The 2D spectra are generated by measuring four-wave mixing signal fields as a function of the time after the third pulse and the time delay between the first two excitation pulses. Signal fields are measured, including phase information, by spectral interferometry. Active stabilization of the interferometer allows us to measure the phase of the emitted signal as a function of the phase between the first two excitation pulses. This enables the implementation of the Fourier transform analysis. Our spectra show the light-hole and heavy-hole exciton transitions on the main diagonal as well as coupling between those two levels as off-diagonal peaks.

Paper Details

Date Published: 16 June 2004
PDF: 9 pages
Proc. SPIE 5352, Ultrafast Phenomena in Semiconductors and Nanostructure Materials VIII, (16 June 2004); doi: 10.1117/12.528538
Show Author Affiliations
Camelia N. Borca, Univ. of Colorado/Boulder (United States)
National Institute of Standards and Technology (United States)
Tianhao Zhang, Univ. of Colorado/Boulder (United States)
National Institute of Standards and Technology (United States)
Steven T. Cundiff, Univ. of Colorado/Boulder (United States)
National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 5352:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials VIII
Kong-Thon Tsen; Jin-Joo Song; Hongxing Jiang, Editor(s)

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