MBE growth of highly efficient lead-salt-based Bragg mirrors on BaF2 (1 1 1) for the 4–6 μm wavelength region
作者： G Springholz , T Schwarzl , W Heiß , H Seyringer , S Lanzerstorfer
DOI: 10.1016/S0022-0248(98)01508-5
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摘要: High reflectivity lead-salt Bragg mirrors were grown by molecular beam epitaxy on BaF 2 (111) substrates. The quarter wavelength layer pairs consisted of a low refractive index Pb 1 -x Eu x Te with = 6% and higher pseudoalloy PbTe/Pb superlattice average 1%. Mirrors stop bands in the range between 4 6 μm obtained reflectivities as high 99% for 32 λ/4 pairs.
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