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Chin. Phys. B, 2008, Vol. 17(3): 943-949    DOI: 10.1088/1674-1056/17/3/033
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Nonparaxial propagation of phase-flipped Gaussian beams

Gao Zeng-Hui(高曾辉)a)b)c)† and Lü Bai-Da(吕百达)c)
a Key Laboratory of Computational Physics, Yibin University, Yibin 644000, China; b Institute of Optoelectronic Information, Yibin University, Yibin 644000, Chinac Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China
Abstract  This paper derives the closed-form expressions for nonparaxial phase flipped Gaussian (PFG) beams propagating in free space, through a knife edge and an aperture, which enable us to study nonparaxial propagation properties of PFG beams and to compare nonparaxial results with paraxial ones. It is found that the $f$ parameter, offsetting distance of the knife edge and truncation parameter affect the nonparaxial beam propagation properties. Only under certain conditions the paraxial approximation is applicable. The results are illustrated by numerical examples.
Keywords:  nonparaxial propagation      phase flipped Gaussian (PFG) beam      $f$ parameter      offsetting distances  
Received:  27 April 2007      Revised:  25 June 2007      Accepted manuscript online: 
PACS:  41.85.-p (Beam optics)  
  42.25.Bs (Wave propagation, transmission and absorption)  
  42.25.Fx (Diffraction and scattering)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10574097).

Cite this article: 

Gao Zeng-Hui(高曾辉) and Lü Bai-Da(吕百达) Nonparaxial propagation of phase-flipped Gaussian beams 2008 Chin. Phys. B 17 943

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