| Title | Analytical and statistical investigation on structural fluctuations induced radiation in photonic crystal slabs |
| Authors | Ni, Liangfu Jin, Jicheng Peng, Chao Li, Zhengbin |
| Affiliation | Peking Univ, Dept Elect, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China. |
| Keywords | SURFACE-EMITTING LASERS COUPLED-WAVE ANALYSIS TRANSVERSE-ELECTRIC POLARIZATION GUIDED MODE RESONANCE BOUND-STATES SPONTANEOUS-EMISSION CONTINUUM LIGHT |
| Issue Date | 2017 |
| Publisher | OPTICS EXPRESS |
| Citation | OPTICS EXPRESS.2017,25(5),5580-5593. |
| Abstract | We extend the coupled-wave-theory (CWT) framework to a supercell lattice photonic crystal (PC) structure to model the radiation of high-Q resonances under structural fluctuations since they are inevitable in realistic devices. The comparison of CWT results and the finite-element-method (FEM) simulations confirm the validity of CWT. It is proved that the supercell model approaches a realistic finite-size PC device when the supercell size is large enough. The Q factors within fluctuated structures are constraint owing to the appearance of fractional orders of radiative waves, which are induced by structural fluctuations. For a large enough footprint size, the upper bound of the Q factor is determined by the fabrication precision, and further increasing the device size will no longer benefit the Q factor. (C) 2017 Optical Society of America |
| URI | http://hdl.handle.net/20.500.11897/474665 |
| ISSN | 1094-4087 |
| DOI | 10.1364/OE.25.005580 |
| Indexed | SCI(E) |
| Appears in Collections: | 信息科学技术学院 区域光纤通信网与新型光通信系统国家重点实验室 |
