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.
Department of Electrical and Computer Engineering, University of California San Diego, La Jolla 92093-0407, USA. dpanasen@ece.ucsd.edu
Dmitriy
D
Panasenko
Pang-Chen
PC
Sun
Nikola
N
Alic
Yeshaiahu
Y
Fainman