Mathematical Methods in Nanophotonics, MIT 18.369, Spring 2016 — lectures 18–19 by Steven G. Johnson 2026-10-13
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Cited passages: Steven G. Johnson, MIT 18.369 Nanophotonics, Spring 2016, lectures 18–19: energy velocity as averaged flux divided by density, and its equality with group velocity in the lossless electromagnetic setting.
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