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Propagation effects in the generation process of high-order vortex harmonics_上海光学精密机械研究所

上海光学精密机械研究所 免费考研网/2018-05-06

外文题目: Propagation effects in the generation process of high-order vortex harmonics
作者: Zhang, Chaojin; Wu, Erheng; Gu, Mingliang; Liu, Chengpu
刊名: Opt. Express
年: 2017 卷: 25 期: 18 页: 21241--21246
英文关键词:

PULSES; LASER; FIELDS; POLAR; MEDIA
英文摘要:
We numerically study the propagation of a Laguerre-Gaussian beam through polar molecular media via the exact solution of full-wave Maxwell-Bloch equations where the rotating-wave and slowly-varying-envelope approximations are not included. It is found that beyond the coexistence of odd-order and even-order vortex harmonics due to inversion asymmetry of the system, the light propagation effect results in the intensity enhancement of a high-order vortex harmonics. Moreover, the orbital momentum successfully transfers from the fundamental laser driver to the vortex harmonics which topological charger number is directly proportional to its order.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1364/OE.25.021241


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