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It's great to be able to calculate waves which reflect off that are normal to a surface, but what about waves at an angle? This video covers s-polarized waves reflecting off an interface, and I derive Fresnel's Equations from the previously-discussed boundary conditions.
This is part of my graduate series on optoelectronics / photonics, and is based primarily on Coldren's book on Lasers as well as graduate-level coursework I have taken in the EECS department at UC Berkeley.
Hope you found this video helpful, please post in the comments below anything I can do to improve future videos, or suggestions you have for future videos.