Comment on ''Photonic Band Gaps: Noncommuting limit and the 'Acoustic Band'''
classification
❄️ cond-mat.mtrl-sci
keywords
bandcommentphotonicacousticblochcommuteconcernscrystals
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This comment concerns the homogenization of 2D dielectric photonic crystals, and the fact that the limits $k\to 0$ ($k$ is the Bloch vector) and $\epsilon \to +\infty $ do not commute for $p$-polarized waves
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