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A Formula of Propagating Beams Driven by Few-Cycle Gaussian Pulse in Dispersive Media |
| LU Da-Quan1,2, HU Wei1, QIAN Lie-Jia2, FAN Dian-Yuan2 |
| 1Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 5106312State Key Laboratory for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai 200433 |
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| Cite this article: |
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LU Da-Quan, HU Wei, QIAN Lie-Jia et al 2008 Chin. Phys. Lett. 25 2464-2466 |
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Abstract A formula is developed to describe the propagation of beams driven by few-cycle Gaussian pulse in a media with group velocity dispersion (GVD). With the method, the spatiotemporal evolution of the pulsed beam can be straightforwardly quantified as long as the monochromatic beam solutions in free space, which have been widely investigated in previous works, are known. The method makes it possible to analytically deal with the few-cycle pulsed beams with transverse profiles other than the Gaussian one, which is, to our knowledge, the one mainly investigated previously, in GVD media.
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| Keywords:
42.25.Bs
42.65.Re
41.20.Jb
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Received: 28 September 2007
Published: 26 June 2008
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| PACS: |
42.25.Bs
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(Wave propagation, transmission and absorption)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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