Frequency-resolved optical-gating measurements of ultrashort pulses using surface third-harmonic generation
- 1 September 1996
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 21 (17), 1381-1383
- https://doi.org/10.1364/ol.21.001381
Abstract
We demonstrate what is to our knowledge the first frequency-resolved optical gating (FROG) technique to measure ultrashort pulses from an unamplified Ti:sapphire laser oscillator without direction-of-time ambiguity. This technique utilizes surface third-harmonic generation as the nonlinear-optical effect and, surprisingly, is the most sensitive third-order FROG geometry yet.Keywords
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