Girvin, Yang Modern Condensed Matter Physics 2019 SSP · Problem 7.36

Electronic Structure of Crystals

Physics — Condensed Matter · distributed-bragg-reflector-stop-band

Problem

Consider a distributed Bragg reflector consisting of alternating layers of index of refraction nA=1.5n_A = 1.5 and nB=2.0n_B = 2.0, with thickness dA=0.2 μd_A = 0.2\,\mum and dB=0.15 μd_B = 0.15\,\mum. Find the range of wavelengths reflected by the first stop band (band gap).

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