That is an excellent question! You are actually watching a video that part of a computational electromagnetics course that teaches how to write computer programs that simulate electromagnetics and photonics. Here is a link to the course website where you can download the notes, get links to the latest versions of the videos, and get links to other learning resources. empossible.net/academics/emp5337/ If you are really interested in getting started in computational electromagnetics, I recently published a book with Artech House. It teaches the art of computational electromagnetics through a method called finite-difference frequency-domain (FDFD). I think FDFD is the best FIRST method to learn in CEM. It is probably the simplest to implement and is capable of analyzing a huge array of materials and devices. Here is a link to the book website that has everything you will need, including MATLAB codes for many types of devices: empossible.net/fdfdbook/ We also offer some online resources that teach finite-difference time-domain (FDTD) to the complete beginner. This is the time-domain brother of FDFD is also an excellent first method to learn. If you have both FDFD and FDTD, there is literally nothing you will not be able to simulate. The only thing other methods will offer you is greater speed and efficiency, but they will be more difficult to learn and to implement. Here is a link to a video showing what is in the online courses: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uBiprIN8gfY.htmlsi=UCXb1OJbAXtGrsvK Here is a link to the actual online FDTD courses: empossible.thinkific.com/collections/FDTD-in-MATLAB You can also use our free resources. These are the notes and videos I use for my face-to-face classes. They are more advanced and do not have the codes or examples. I work these in person in the classroom. I recommend starting with the Computational Methods course and work through Topics 6 and 7. empossible.net/academics/emp4301_5301/ From here, you will be in an excellent position for the Computational Electromagnetics course: empossible.net/academics/emp5337/ or EM Analysis Using FDTD: empossible.net/academics/emp5304/ I hope this helps! All of these use the Yee grid you saw in the video.
