Frequency-resolved optical-gating measurements of ultrashort pulses using surface third-harmonic generation.
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.
Tsang
T
T
Krumbügel
M A
MA
Delong
K W
KW
Fittinghoff
D N
DN
Trebino
R
R