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Harmonics generation and intense terahertz radiation from polar molecules at multiphoton resonant excitation in laser fields (1106.2249v1)
Published 11 Jun 2011 in physics.atom-ph, physics.optics, and quant-ph
Abstract: 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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