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Proceedings Paper

Detection of the complete electric field of femtosecond four-wave mixing signals
Author(s): Allison W. Albrecht; Sarah M. Gallagher; John D. Hybl; Brett L. Landin; Bhavani Rajaram; David M. Jonas
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Paper Abstract

A novel optimized heterodyne method which recovers the complete electric field of any four-wave mixing signal at its point of origin is demonstrated. A tracer pulse is sent along the signal path and characterized at the sample by frequency-resolved optical gating. Spectral interferometry is used to determine the phase difference between the tracer and a reference pulse, the absorptive change in tracer phase in the sample, and the reference-signal phase difference. Together, these measurements allow calculation of the signal phase at the sample. The phase of three pulse scattering signals from solutions of the dye IR144 in methanol determines the absolute signal emission time within 0.5 fs.

Paper Details

Date Published: 24 April 1998
PDF: 8 pages
Proc. SPIE 3273, Laser Techniques for Condensed-Phase and Biological Systems, (24 April 1998); doi: 10.1117/12.306139
Show Author Affiliations
Allison W. Albrecht, Univ. of Colorado/Boulder (United States)
Sarah M. Gallagher, Univ. of Colorado/Boulder (United States)
John D. Hybl, Univ. of Colorado/Boulder (United States)
Brett L. Landin, Univ. of Colorado/Boulder (United States)
Bhavani Rajaram, Univ. of Colorado/Boulder (United States)
David M. Jonas, Univ. of Colorado/Boulder (United States)

Published in SPIE Proceedings Vol. 3273:
Laser Techniques for Condensed-Phase and Biological Systems
Norbert F. Scherer; Janice M. Hicks, Editor(s)

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