Frontiers of Optoelectronics, Volume. 8, Issue 1, 1(2015)
Simultaneous generation of nonlinear optical harmonics and terahertz radiation in air: polarization discrimination of various nonlinear contributions
In this paper, we experimentally observed generation of the second and the third optical harmonics and the broadband terahertz radiation in the course of 800 nm 120 fs pulse in atmospheric air. The analysis of their polarization properties revealed unity of their nonlinear optical nature. Taking into account only the third-order nonlinear response of the neutral molecules of air, we analytically described the newly generated elliptically polarized 3d harmonic, the linear polarization of terahertz radiation and the stability of terahertz energy yield for the initial circularly polarized ω pump pulse.
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Mikhail ESAULKOV, Olga KOSAREVA, Vladimir MAKAROV, Nikolay PANOV, Alexander SHKURINOV. Simultaneous generation of nonlinear optical harmonics and terahertz radiation in air: polarization discrimination of various nonlinear contributions[J]. Frontiers of Optoelectronics, 2015, 8(1): 1
Category: RESEARCH ARTICLE
Received: May. 7, 2014
Accepted: Jun. 16, 2014
Published Online: Apr. 20, 2015
The Author Email: ESAULKOV Mikhail (esaulkov_mich@mail.ru)