Highly simplified device for ultrashort-pulse measurement.
We show that a frequency-resolved optical gating device using (1) a thick nonlinear crystal to replace the usual thin crystal and spectrometer and (2) a Fresnel biprism to replace the beam splitter and delay line yields a remarkably simple single-shot ultrashort-pulse intensity-and-phase measurement device with no sensitive alignment parameters and significantly greater sensitivity.
P
P
O'Shea
M
M
Kimmel
X
X
Gu
R
R
Trebino