Measurement of the intensity and phase of ultraweak, ultrashort laser pulses
1996; Optica Publishing Group; Volume: 21; Issue: 12 Linguagem: Inglês
10.1364/ol.21.000884
ISSN1539-4794
AutoresD. N. Fittinghoff, Ian A. Walmsley, Jason Bowie, John N. Sweetser, Richard T. Jennings, Marco A. Krumbügel, Kenneth W. DeLong, Rick Trebino,
Tópico(s)Spectroscopy Techniques in Biomedical and Chemical Research
ResumoWe show that frequency-resolved optical gating combined with spectral interferometry yields an extremely sensitive and general method for temporal characterization of nearly arbitrarily weak ultrashort pulses even when the reference pulses is not transform limited. We experimentally demonstrate measurement of the full time-dependent intensity and phase of a train of pulses with an average energy of 42 zeptojoules (42 x 10(-21) J), or less than one photon per pulse.
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