Cross-correlation frequency-resolved optical gating by molecular alignment for ultraviolet femtosecond pulse measurement

Peifen Lu; Jia Liu; Hao Li; Haifeng Pan; Jian Wu; Heping Zeng
August 2010
Applied Physics Letters;8/9/2010, Vol. 97 Issue 6, p061101
Academic Journal
We experimentally demonstrate a molecular-alignment-based cross-correlation frequency-resolved optical gating technique for ultraviolet femtosecond pulse measurement, which use laser-induced impulsive alignment of gaseous molecules as the gate function instead of the phase-matched frequency mixing process in a nonlinear crystal. The spectrogram measurements and retrieving results of the intensity and phase of the second and third harmonic pulses centered at 400 and 267 nm are presented.


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