December 2017
Intermediate to advanced
326 pages
6h 56m
English
book
Fourier Modal Method and Its Applications in Computational Nanophotonics
by Hwi Kim, Junghyun Park, Byoungho Lee
Content preview from Fourier Modal Method and Its Applications in Computational Nanophotonics
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4
A Perfect Matched Layer for Fourier Modal Method
In this chapter, a perfect matched layer (PML) for Fourier modal method (FMM) is described. Although actual space is made up of half-infinite spaces with reflectionless outgoing waves, every simulation method, such as FMM, finite-difference time-domain (FDTD), and finite-element method (FEM), works, in practice, in a finite-sized computation space. Therefore it is inevitable that this computational region would be surrounded by boundaries that perform as if there were half-infinite spaces outside those boundaries. A PML is an artificial layer that permits the accurate calculation of the distribution of an electromagnetic field inside the computational region by satisfying outgoing wave conditions. ...
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