scholarly journals Finite-difference time-domain algorithm for modeling Sagnac effect in rotating optical elements

2008 ◽  
Vol 16 (8) ◽  
pp. 5227 ◽  
Author(s):  
Chao Peng ◽  
Rui Hui ◽  
Xuefeng Luo ◽  
Zhengbin Li ◽  
Anshi Xu
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Sagnac Effect ◽  
Optical Elements ◽  
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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