Exact Evolution of Ultrashort Hollow-Airy Pulses in the Spatiotemporal Domain
Exact Evolution of Ultrashort Hollow-Airy Pulses in the Spatiotemporal Domain
复制标题
时空域超短空心脉冲的精确演化
DOI:
10.1088/0256-307x/32/1/014201
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发表时间:
2015
影响因子:
3.5
通讯作者:
Lin Qiang
中科院分区:
文献类型:
--
作者:
Zhang Jing-Fang;Wang Zhao-Ying;Lin Qiang
An exact analytic expression for an ultrashort hollow-Airy wave packet is presented beyond the slowly varying envelope approximation. The hollow-Airy wave packet combines the hollow-Gaussian beam in the spatial domain and the Airy pulse in the temporal domain. The spatiotemporal propagation dynamics of the ultrashort hollow-Airy pulse are analyzed by the numerical simulations. During the propagation in free space, the spatial intensity profile evolves from hollow-Gaussian to Gaussian shape; the temporal intensity profile retains Airy shape over several Rayleigh ranges. The acceleration property of the ultrashort Airy pulse is also demonstrated.
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