24 April 1998 Detection of the complete electric field of femtosecond four-wave mixing signals
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Allison W. Albrecht, Allison W. Albrecht, Sarah M. Gallagher, Sarah M. Gallagher, John D. Hybl, John D. Hybl, Brett L. Landin, Brett L. Landin, Bhavani Rajaram, Bhavani Rajaram, David M. Jonas, David M. Jonas, } "Detection of the complete electric field of femtosecond four-wave mixing signals", Proc. SPIE 3273, Laser Techniques for Condensed-Phase and Biological Systems, (24 April 1998); doi: 10.1117/12.306139; https://doi.org/10.1117/12.306139

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