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D. G. POPESCU1
- National Institute of Materials Physics, Atomistilor 105b, 077125 Magurele-Ilfov, Romania
A two dimensional photonic crystal with hexagonal symmetry is investigated by finite-difference time-domain and finitedifference frequency-domain theoretical calculations. The system consist in a germanium substrate patterned with holes of different radii, varying from to . The photonic band gaps (PBGs) and the reflectance spectra allow a complete characterization of the structure. It was shown the presence of PBGs at telecommunication wavelengths which makes the present systems suitable for optoelectronic applications, representing a potential alternative to Si-based technology.
FDTD analyses, Photonic band gaps, Reflectivity.
Submitted at: Sept. 1, 2015
Accepted at: Sept. 29, 2016
D. G. POPESCU, Theoretical investigation of a Ge 2D photonic crystal by optical reflectivity correlated with band distributions, Journal of Optoelectronics and Advanced Materials Vol. 18, Iss. 9-10, pp. 769-774 (2016)
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