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.
O'Shea
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P
Kimmel
M
M
Gu
X
X
Trebino
R
R