Wide-angle finite-element beam propagation method using Padé approximation

1997 ◽  
Vol 33 (17) ◽  
pp. 1461 ◽  
Author(s):  
O. Mitomi ◽  
K. Kasaya
Keyword(s):  
Finite Element ◽  
Beam Propagation Method ◽  
Beam Propagation ◽  
Wide Angle

A Novel Finite Element Method Based Beam Propagation Method without Using Slow Varying Envelope Approximation

2014 ◽  
Vol 529 ◽  
pp. 660-664
Author(s):  
Bing Yu ◽  
Han Xia ◽  
Zhun Xu ◽  
Xiao Ye Chen ◽  
Xian Han Sun ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Helmholtz Equation ◽  
Beam Propagation Method ◽  
Beam Propagation ◽  
Wide Angle ◽  
Element Method

A novel finite element method (FEM) based wide-angle (WA) beam propagation method (BPM) was presented whereby the scalar Helmholtz equation was solved without using the slow varying envelope approximation (SVEA) and was more general and precise than the previous well-known WA-BPM proposed by Hadley. The accuracy of this novel scheme was demonstrated in comparison with the existing approach.

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