O'Reilly logo

Fourier Modal Method and Its Applications in Computational Nanophotonics by Byoungho Lee, Junghyun Park, Hwi Kim

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

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. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required