Transient-grating frequency-resolved optical gating

Transient-grating frequency-resolved optical gating

We introduce a transient-grating beam geometry for frequency-resolved optical-gating measurements of ultrashort laser pulses and show that it offers significant advantages over currently used geometries. Background free and phase matched over a long interaction length, it is the most sensitive third...

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Veröffentlicht in:Optics Letters 1997-04, Vol.22 (8), p.519-521
Hauptverfasser: Sweetser, J N, Fittinghoff, D N, Trebino, R
Format: Artikel
Sprache:eng
Schlagworte:
GRATINGS
INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS
LASER RADIATION
MEASURING METHODS
NONLINEAR OPTICS
PULSES
SPECTROSCOPY
TRANSIENTS
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Beschreibung
Zusammenfassung:We introduce a transient-grating beam geometry for frequency-resolved optical-gating measurements of ultrashort laser pulses and show that it offers significant advantages over currently used geometries. Background free and phase matched over a long interaction length, it is the most sensitive third-order pulse-measurement geometry. In addition, for pulses greater than ~300 fs in length and ~1 microJ in energy, the nonlinear medium can be removed and the nonlinearity of air can be used to measure the pulse.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.22.000519