Perfect plane-wave source for a high-order symplectic finite-difference time-domain scheme

2011 ◽  
Vol 20 (11) ◽  
pp. 114701 ◽  
Author(s):  
Hui Wang ◽  
Zhi-Xiang Huang ◽  
Xian-Liang Wu ◽  
Xin-Gang Ren
Keyword(s):  
Finite Difference ◽  
Plane Wave ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
High Order ◽  
Wave Source ◽  
Difference Time

scholarly journals Optical Response to Submicron Digital Elements Simulated by FDTD Wavelets with Refractive Impulse

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Antony J. Bourdillon
Keyword(s):  
Finite Difference ◽  
Plane Wave ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Optical Response ◽  
Optical Elements ◽  
Evaluation Program ◽  
Difference Time ◽  
Wave Incidence ◽  
Plane Wave Incidence

Accurate simulation from digital, submicron, optical elements is obtained by finite difference time domain (FDTD) results that are phase analyzed as sources for Huygens wavelets on fine scales much shorter than the wavelength used. Results, from the MIT electromagnetic evaluation program, are renormalized by a method here called “refractive impulse.” This is valid for polarized responses from digital diffractive and focusing optics. The method is employed with plane wave incidence at any angle or with diverging or converging beams. It is more systematic, more versatile, and more accurate than commercial substitutes.

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