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- Title
Shaping the CPML Absorbing Boundary Condition to Eliminate Impinging Light at a Specific Position inside Electromagnetic Simulations.
- Authors
Sergio Cantero; Shuai-Hsun Lee; Snow H. Tseng
- Abstract
In this research we explore the possibility to implement an optical target that eliminates incoming wave in finite-different time-domain (FDTD) simulations. This is achieved by a modified morphology of an absorbing boundary condition (ABC). In particular, our model is based on convolutional perfectly matched layers (CPML) ABC. To validate this method, a cylindrical CPML region is constructed as artificial absorbing material and simulated using a two-dimensional FDTD algorithm. Its performance is analyzed for focused beam wave source conditions. Varying the spatial size of the circular CPML, we compute the absorption efficiency for a wide range of applications and demonstrate its performance as a numerical optical target in FDTD simulations. We demonstrate that the reported simulation construct can effectively eliminate impinging light wave for a macroscopic light scattering simulation.
- Subjects
ABSORBING boundary conditions (FDTD method); BOUNDARY value problems; COMPLEX variables; DIFFERENTIAL equations; ELECTROMAGNETISM
- Publication
PIERS Proceedings, 2014, p2445
- ISSN
1559-9450
- Publication type
Article