Single-shot generation of a sonogram by time gating of a spectrally decomposed ultrashort laser pulse.
An experimental technique for single-shot generation of the sonogram of an ultrashort laser pulse is demonstrated. The method is based on the time gating of a spectrally decomposed test signal, transferring its spectral phase into a spatial phase, and the spatial filtering of the signal to produce a sonogram. The technique is evaluated experimentally, producing sonograms for linearly and nonlinearly chirped femtosecond laser pulses. The single-shot technique permits reconstruction of ultrashort pulse complex amplitude profiles and is useful for showing the signal in real time.
Panasenko
Dmitriy
D
Department of Electrical and Computer Engineering, University of California San Diego, La Jolla 92093-0407, USA. dpanasen@ece.ucsd.edu
Sun
Pang-Chen
PC
Alic
Nikola
N
Fainman
Yeshaiahu
Y