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Generation of Nonlinear Vortex Precursors_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: Generation of Nonlinear Vortex Precursors
作者: Chen, Yue-Yue; Feng, Xun-Li; Liu, Chengpu
刊名: Phys. Rev. Lett.
年: 2016 卷: 117 期: 2 文章编号:23901
英文关键词:

ORBITAL ANGULAR-MOMENTUM; PULSE-PROPAGATION; MAXWELLS EQUATIONS; NUMERICAL-SOLUTION; OPTICAL PULSES; SOLITARY WAVES; MEDIA; LIGHT
英文摘要:
We numerically study the propagation of a few-cycle pulse carrying orbital angular momentum (OAM) through a dense atomic system. Nonlinear precursors consisting of high-order vortex harmonics are generated in the transmitted field due to carrier effects associated with ultrafast Bloch oscillation. The nonlinear precursors survive to propagation effects and are well separated with the main pulse, which provides a straightforward way to measure precursors. By virtue of carrying high-order OAM, the obtained vortex precursors as information carriers have potential applications in optical information and communication fields where controllable loss, large information-carrying capacity, and high speed communication are required.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1103/PhysRevLett.117.023901


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