1.
Opt Lett
; 21(12): 884-6, 1996 Jun 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19876191
RESUMO
We 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.