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Chin. Phys. B, 2014, Vol. 23(3): 037801    DOI: 10.1088/1674-1056/23/3/037801

Speckle intensity images of target based on Monte Carlo method

Wu Ying-Li (武颖丽), Wu Zhen-Sen (吴振森)
Xidian University, School of Science, Xi’an 710071, China
Abstract  Speckle intensity in the detector plane is deduced in the free-space optical system and imaging system based on Van Cittert–Zernike theorem. The speckle intensity images of plane target and conical target are obtained by using the Monte Carlo method and measured experimentally. The results show that when the range extent of target is smaller, the speckle size along the same direction become longer, and the speckle size increase with increasing incident light wavelengths. The speckle size increases and the speckle intensity images of target is closer to the actual object when the aperture scale augments. These findings are useful to access the target information by speckle in laser radar systems.
Keywords:  laser scattering      Monte Carlo method      speckle      intensity images  
Received:  02 May 2013      Revised:  03 August 2013      Accepted manuscript online: 
PACS:  78.20.hc (Laser ultrasonics)  
  78.20.Ek (Optical activity)  
  78.20.Bh (Theory, models, and numerical simulation)  
  78.68.+m (Optical properties of surfaces)  
Fund: Project supported by the National Natural Sciences Foundation of China (Grant No. 61172031) and the Fundamental Research Funds for the Central Universities of China (Grant No. K50511070005).
Corresponding Authors:  Wu Ying-Li     E-mail:

Cite this article: 

Wu Ying-Li (武颖丽), Wu Zhen-Sen (吴振森) Speckle intensity images of target based on Monte Carlo method 2014 Chin. Phys. B 23 037801

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