Optical two-dimensional Fourier transform spectroscopy with active interferometric stabilization

Optical two-dimensional Fourier transform spectroscopy is implemented near 800 nm with active stabilization. Excitation pulse delay is stabilized during data acquisition and stepped with interferometric accuracy. The reference used for heterodyne detecting the complete transient four-wave mixing sig...

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Bibliographic Details
Published in:Optics express 2005-09, Vol.13 (19), p.7432-7441
Main Authors: Zhang, Tianhao, Borca, Camelia, Li, Xiaoqin, Cundiff, Steven
Format: Article
Language:English
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Summary:Optical two-dimensional Fourier transform spectroscopy is implemented near 800 nm with active stabilization. Excitation pulse delay is stabilized during data acquisition and stepped with interferometric accuracy. The reference used for heterodyne detecting the complete transient four-wave mixing signal is also phase-stabilized. The phase evolution of the four-wave mixing signal during the initial evolution period and the final detection period is then measured and correlated. Two-dimensional spectra with absorption and emission frequency axes are obtained by Fourier transforms with respect to the corresponding time variables. Measurement performed on a GaAs multiple quantum well sample shows light-hole and heavy-hole exciton transitions as the diagonal peaks and coupling between these two resonances as off-diagonal peaks.
ISSN:1094-4087
1094-4087
DOI:10.1364/OPEX.13.007432