The 5.2 version of GSOLVER is provided as a free download on our software library. The program's installer file is generally known as Gsolver420.exe. The file size of the latest downloadable installer is 6.7 MB. The most popular version among the program users is 5.2. Our antivirus analysis shows that this download is malware free. The program lies within Education Tools, more precisely Science Tools. This free software is a product of Grating Solver Development Co.
From the developer:
GSolver solves Maxwell’s equations within an arbitrary periodic grating structure at the interface of two semi-infinite half-spaces: the superstrate, and the substrate.
The only approximation made is in the user assigned truncation order which determines the number of terms used in the Fourier series representation of the permitivity (and impermitivity) of the grating layer.
You may want to check out more software, such as Maxima and Minima, IUCLID5 or ECoord, which might be related to GSOLVER.