Abstract
A Bragg superlattice is created in the process of the diamond growth from a gaseous phase via the nanoscale boron modulation doping method. To maximize the Bragg superlattice reflection coefficient at the violet edge of the visible range, the thicknesses of either of two layers in its period were made close to the quarter-wavelength of radiation in this spectral domain. The vacuum wavelength dependence of the transition coefficient of electromagnetic radiation in the optical and near infrared range through this superlattice is measured. The most pronounced Bragg features are lying at the violet edge of the optical range, where the contrast of the diamond dielectric permittivity due to modulation doping is much smaller than in the red and infrared domain. Its accordance with simulation results based on secondary ion mass spectroscopy data on the thicknesses and boron atom concentrations for doped layers is demonstrated.
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