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Physical Review Letters

Noninterferometric Two-Dimensional Fourier-Transform Spectroscopy of Multilevel Systems

Jeffrey A. Davis, Lap Van Dao, M. T. Do, Peter Hannaford, Keith A Nugent, Harry M. Quiney

Published Jun 2, 2008• 36 citations
Publisher

Abstract

We demonstrate a technique that determines the phase of the photon-echo emission from spectrally resolved intensity data without requiring phase-stabilized input pulses. The full complex polarization of the emission is determined from spectral intensity measurements. The validity of this technique is demonstrated using simulated data, and is then applied to the analysis of two-color data obtained from the light-harvesting molecule lycopene.

DOI
10.1103/physrevlett.100.227401

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We demonstrate a technique that determines the phase of the photon-echo emission from spectrally resolved intensity data without requiring phase-stabilized input pulses. The full complex polarization of the emission is determined from spectral intensity measurements. The validity of this technique is demonstrated using simulated data, and is then applied to the analysis of two-color data obtained from the light-harvesting molecule lycopene.
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The technique of the speckle analysis of resonant secondary emission is reviewed. It is a novel, linear optical technique to measure the microscopic intensity and polarization dynamics in inhomogeneously broadened ensembles, that represents an alternative for established non-linear optical techniques such as photon-echo or spectral hole burning. Both time-resolved and spectrally resolved variants of the speckle analysis are discussed. Experimental results obtained on semiconductor quantum wells using both techniques are presented.