We propose a new (to our knowledge) method for performing beam shaping. Calculations show that beam patterns including diamond, rhombus, and hollow beam with diamond-shaped dark core can be generated in the focal plane of a square Fresnel zone plate by choosing appropriate parameters of an incident elliptic vortex beam. Numerical simulations have demonstrated the validity and effectiveness of this method.
© 2011 Optical Society of America
Lasers and Laser Optics
Original Manuscript: January 7, 2011
Revised Manuscript: March 19, 2011
Manuscript Accepted: March 27, 2011
Published: May 16, 2011
Ziyang Chen and Daomu Zhao, "Focusing of an elliptic vortex beam by a square Fresnel zone plate," Appl. Opt. 50, 2204-2210 (2011)