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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 2 — Feb. 1, 2010
  • pp: 244–247

The role of refocusing in dynamic X-wave formation during femtosecond laser filamentation in water

Junjie Xu, Han Xu, Hui Xiong, Ya Cheng, Zhizhan Xu, Weiwei Liu, and See Leang Chin  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 2, pp. 244-247 (2010)


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Abstract

With the evolution of a laser pulse in water, the formation of a nonlinear X wave during femtosecond filamentation is investigated based on numerical simulations. In particular, we analyze the far-field angularly resolved spectra obtained for different temporal portions of the ultrashort pulse during its propagation. Our result shows that the refocusing of ultrashort pulse leads to the formation of dynamic X wave which essentially manifests itself as conical emission.

© 2010 Chinese Optics Letters

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(320.0320) Ultrafast optics : Ultrafast optics

Citation
Junjie Xu, Han Xu, Hui Xiong, Ya Cheng, Zhizhan Xu, Weiwei Liu, and See Leang Chin, "The role of refocusing in dynamic X-wave formation during femtosecond laser filamentation in water," Chin. Opt. Lett. 8, 244-247 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-2-244

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