Chin. Phys. Lett.  2000, Vol. 17 Issue (8): 568-570    DOI:
Original Articles |
Spatial and Temporal Evolution of Ultra-Wide-Band Optical Pulses in Propagation
XU Jing-Zhou;WANG Li;YANG Guo-Zhen
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
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XU Jing-Zhou, WANG Li, YANG Guo-Zhen 2000 Chin. Phys. Lett. 17 568-570
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Abstract The propagation of ultrashort coherent electromagnetic pulses with broad spectral bandwidth in free space is studied by using scalar diffraction theory. It is confirmed and experimentally demonstrated that the diffraction not only affects the spatial structure but also changes the temporal waveform of an ultra-wide-band pulse during propagation. The terahertz pulse travelling as basic mode of Gaussian beam is discussed in detail.
Keywords: 41.20.Jb. 42.25.Bs     
Published: 01 August 2000
PACS:  41.20.Jb. 42.25.Bs  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2000/V17/I8/0568
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