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Wavelength scaling of elliptical-polarization dependence of high-order harmonic generation
1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, ChineseAcademy of Sciences, P.O. Box 800-211, Shanghai 201800, China.
Abstract:
We report on an experimental study on the wavelength-scaling law of elliptical-polarization dependence of high-order harmonic generation. In the elliptical-polarization dependence measurements, we keep an identical peak intensity for pump pulses with carrier wavelength ranging from 800 nm to the mid-IR region, and the harmonic emission near the cutoff region is selected for comparison. We find that the experimental measured wavelength scaling of elliptical-polarization dependence could be well fitted with a function (epsilon(1/2) proportional to lambda(-1)) predicted by semiclassical model.
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