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Chin. Phys. B, 2013, Vol. 22(10): 104210    DOI: 10.1088/1674-1056/22/10/104210
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

The influence of smoothing by spectral dispersion on the beam characteristics in the near field

Fan Xin-Min (樊心民), Lü Zhi-Wei (吕志伟), Lin Dian-Yang (林殿阳), Wang Yu-Lei (王雨雷)
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150080, China
Abstract  The influences of SSD on the beam characteristics in the near field are investigated. Results show that if the SSD parameters are increased, the laser intensity modulation increases while fluence modulation decreases, which is attributed to the temporal and spatial variation of the SSD pulse phase. The variations of intensity and fluence modulations with the SSD parameters are given. The simulation results are presented along with a method for choosing appropriate SSD parameters according to the variations and the requirements of applications.
Keywords:  smoothing by spectral dispersion      intensity modulation degree      fluence modulation degree  
Received:  23 January 2013      Revised:  06 April 2013      Accepted manuscript online: 
PACS:  42.68.Ay (Propagation, transmission, attenuation, and radiative transfer)  
  42.30.Kq (Fourier optics)  
  25.60.Pj (Fusion reactions)  
Fund: Project supported by the State Key Program of the National Natural Science Foundation of China (Grant No. 61138005) and the National Natural Science Foundation of China (Grant No. 61008005).
Corresponding Authors:  Lü Zhi-Wei     E-mail:  zw_lu@sohu.com

Cite this article: 

Fan Xin-Min (樊心民), Lü Zhi-Wei (吕志伟), Lin Dian-Yang (林殿阳), Wang Yu-Lei (王雨雷) The influence of smoothing by spectral dispersion on the beam characteristics in the near field 2013 Chin. Phys. B 22 104210

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