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Chin. Phys. B, 2009, Vol. 18(5): 1853-1890    DOI: 10.1088/1674-1056/18/5/023
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Nonparaxial propagation of a vectorial apertured off-axis Lorentz beam

Zhou Guo-Quan(周国泉)
School of Sciences, Zhejiang Forestry University, Lin'an 311300, China
Abstract  Based on the vectorial Rayleigh--Sommerfeld integral formula and the complex Gaussian expansion of the hard-edge aperture function, an analytical propagation expression for a nonparaxial vectorial off-axis Lorentz beam passing through a rectangular aperture is derived. The unapertured case, the far field expression and the scalar paraxial result are also presented as special cases of the general formulae, respectively. Some numerical examples are also given to show the propagation characteristics of a nonparaxial vectorial off-axis Lorentz beam through a rectangular aperture. It is indicated that the f parameter, the off-axis displacement and the truncation parameter all play an important role in determining nonparaxial propagation behaviour.
Keywords:  vectorial Rayleigh--Sommerfeld integral      nonparaxial vectorial off-axis Lorentz beam      rectangular aperture  
Received:  19 July 2008      Revised:  11 November 2008      Accepted manuscript online: 
PACS:  42.25.Bs (Wave propagation, transmission and absorption)  
  42.60.-v (Laser optical systems: design and operation)  
Fund: Project supported by the Scientific Research Fund of Zhejiang Provincial Education Department, China (Grant No 20060677).

Cite this article: 

Zhou Guo-Quan(周国泉) Nonparaxial propagation of a vectorial apertured off-axis Lorentz beam 2009 Chin. Phys. B 18 1853

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