Approximate analytical propagation equations of Gaussian beams through hard-aperture optics
Abstract:By using the method of expanding the aperture function into a finite sum of complex Gaussian functions, approximate closed-form propagation equations of Gaussian beams through a paraxial multi-apertured ABCD optical system are derived and illustrated with numerical examples. The numerical results find an agreement with those by straightforward integral of the Collins formula, but the computing time is strongly reduced.
Document Type: Research Article
Affiliations: 1: Department of Electronic Information Science and Technology, Yibin University,Yibin 644007, China 2: College of Electronic Engineering, Sichuan Normal University, Chengdu 610066, China 3: Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China
Publication date: September 1, 2003