FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Exact Evolution of Ultrashort Hollow-Airy Pulses in the Spatiotemporal Domain |
ZHANG Jing-Fang, WANG Zhao-Ying**, LIN Qiang** |
Institute of Optics, Department of Physics, Zhejiang University, Hangzhou 310027
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Cite this article: |
ZHANG Jing-Fang, WANG Zhao-Ying, LIN Qiang 2015 Chin. Phys. Lett. 32 014201 |
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Abstract 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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Published: 23 December 2014
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PACS: |
42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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92.60.Ta
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(Electromagnetic wave propagation)
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42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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