Spectral modulation of high-order harmonic generation from prealigned CO2 molecules.


We demonstrate experimentally that prealigned molecules produce observable spectral redshift or blueshift on the high-order harmonic generation. We distinguish two effects of molecular alignment on the phase modulation of the harmonics; one is from the gradient of alignment degree and the other is the plasma density varied by the molecular alignment. The… (More)
DOI: 10.1364/OL.38.004872


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