Harmonics generation and intense terahertz radiation from polar molecules at multiphoton resonant excitation in laser fields

Details Harmonics generation and intense terahertz radiation from polar molecules at multiphoton resonant excitation in laser fields Harmonics generation and intense terahertz radiation from polar molecules at multiphoton resonant excitation in laser fields

2011-06-11

arxiv.org/abs/1106.2249v1

Physics

Atomic Physics

8 pages, 6 figures

Scientific paper

The coherent radiation spectrum of two-level polar molecules with UV transition is studied at the multiphoton resonant excitation by a moderately strong laser field. The spectrum corresponding to harmonic generation and low-frequency radiation is investigated both analytically and numerically. Specifically, a mechanism for generation of intense smoothly tunable terahertz radiation by two-level molecular configurations (with dynamic Stark shifts) possessing permanent dipole moments, is considered.

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