So, I graduated last year and decided to spend the year working before applying to grad school. I'm trying to narrow down what fields I want to look at, so I'm collecting information. To that end, my current question is this: "What fields of physics, as common defined by grad-school program reference books, would involve E&M like math?" You see, out of all my classes during my Bachelor's, I enjoyed E&M the most. That, followed by Quantum, and finally Optics. Didn't like Mechanics too much. Quantum I didn't do too well in, but really did enjoy the the parts that clicked with me (Harmonic Oscillators!) Optics was an elective geared towards engineers and was pretty spoon fed, and of only mild interest. E&M though, I found mostly fun. I actually thought solving Laplace's Equation in 3D for fields was fun. I liked doing E&M, it was difficult, but fun. BEN ITOY! So, what fields of research, or grad programs, would you guys think would interest someone who likes E&M?