A spherical distributed Bragg reflector based on a-Si1–xC x : H and a-SiO2 layers
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A spherical distributed Bragg reflector (SDBR) for near-infrared applications is elaborated via plasma-enhanced chemical-vapor deposition. It consists of the alternating quarter-wave layers of amorphous hydrogenized silicon carbide (a-Si1–xC x : H) and amorphous silicon oxide (a-SiO2) deposited onto a glass microsphere. The reflection spectra of the SDBR are measured at different points of its surface. In all cases, the Bragg-reflection bands, as well as the wavelength range of their overlap, are detected, evidencing the presence of a complete photonic band gap in the SDBR obtained.
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- 17.S. A. Blokhin, M. A. Bobrov, A. G. Kuzmenkov, A. A. Blokhin, A. P. Vasil’ev, Yu. A. Guseva, M. M. Kulagina, I. O. Karpovsky, Yu. M. Zadiranov, S. I. Troshkov, N. D. Prasolov, P. N. Brunkov, V. S. Levitsky, V. Lisak, N. A. Maleev, and V. M. Ustinov, Tech. Phys. Lett. 42, 1049 (2016).ADSCrossRefGoogle Scholar