Propagation of 3-D Beams Using a Finite-Difference Algorithm: Practical Considerations

被引：0
|
作者：
Paxton, Alan H. [1 ]
机构：
[1] USAF, Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA
来源：
LASER RESONATORS AND BEAM CONTROL XII | 2010年 / 7579卷
关键词：
beam propagation; wave optics; paraxial wave equation; finite difference;
D O I：
10.1117/12.847942
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We discuss practical aspects of the use of the finite-difference, alternating-direction implicit (ADI), numerical solution of the paraxial wave equation, for the free-space propagation of light beams. Results of calculations solving the finite-difference equations are compared with fresnel-integral solutions. Calculations are for round beams, but the field is represented in cartesian coordinates. Modes for empty unstable resonators are also obtained using the finite-difference algorithm and are compared with fresnel-integral solutions.
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页数：8
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