Abstract

The transmission spectra of finite-thickness slabs of three-dimensional (3D) diamond-lattice photonic crystals of air spheres in a dielectric background in which various concentrations of randomly located vacancies are present are studied. We find that resonant modes associated with isolated defects couple to form an extended defect band, leading to a significant increase in transmission for frequencies inside the 3D photonic bandgap. Outside the 3D gap, vacancies induce scattering from evanescent to propagating modes, leading to an increase in transmission near the pseudo-gap edges within the gap. The local defect density of states for several concentrations of vacancies is computed; thus, it is shown that the total number of defect states and the range of supported frequencies increase due to increasing vacancy density.

© 2015 Optical Society of America

Half-disordered photonic crystal slabs

V. Beque, J. Keilman, and D. S. Citrin
Appl. Opt. 55(23) 6389-6393 (2016)

Investigation of defect cavities formed in three-dimensional woodpile photonic crystals

Mike P. C. Taverne, Ying-Lung D. Ho, and John G. Rarity
J. Opt. Soc. Am. B 32(4) 639-648 (2015)

Tailoring of spectral response and spatial field distribution with corrugated photonic crystal slab

Raanan Gad, Wah Tung Lau, Costa Nicholaou, Soroosh Ahmadi, Iliya Sigal, and Ofer Levi
Opt. Lett. 40(16) 3715-3718 (2015)

Direct measurements of forces induced by Bloch surface waves in a one-dimensional photonic crystal

Daniil A. Shilkin, Evgeny V. Lyubin, Irina V. Soboleva, and Andrey A. Fedyanin
Opt. Lett. 40(21) 4883-4886 (2015)

Degeneration of topological corner, hinge, and surface states in three-dimensional photonic crystals

Xiaoxue Li, Guanghao Rui, Jun He, and Bing Gu
Opt. Lett. 48(20) 5332-5335 (2023)