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arXiv · 1002.3384

Polarization and ellipticity of high-order harmonics from aligned molecules generated by linearly polarized intense laser pulses

Anh-Thu Le·R. R. Lucchese·C. D. Lin
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Abstract

We present theoretical calculations for polarization and ellipticity of high-order harmonics from aligned N$_2$, CO$_2$, and O$_2$ molecules generated by linearly polarized lasers. Within the rescattering model, the two polarization amplitudes of the harmonics are determined by the photo-recombination amplitudes for photons emitted parallel and perpendicular to the direction of the {\em same} returning electron wave packet. Our results show clear species-dependent polarization states, in excellent agreement with experiments. We further note that the measured polarization ellipse of the harmonic furnishes the needed parameters for a "complete" experiment in molecules.

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Anh-Thu Le, R. R. Lucchese, C. D. Lin. 2010-02-17. Polarization and ellipticity of high-order harmonics from aligned molecules generated by linearly polarized intense laser pulses. https://doi.org/10.1103/physreva.82.023814

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