Diffraction mode selection in planar Bragg resonators of optical and microwave wavelength ranges |
| |
Affiliation: | 1. Institute of Applied Physics RAS, 46 Ul''yanov St, 603950, Nizhny Novgorod, Russia;2. Lobachevsky State University, 23 Gagarin Av., 603950, Nizhny Novgorod, Russia |
| |
Abstract: | Using the coupled waves approach complemented by the time-domain quasi-optical approximation, we solve a 2D diffraction problem which allows to evaluate the eigenfrequencies, quality factors and spatial structures of eigenmodes in planar Bragg resonators with a finite length and width of the corrugated area. We find the values of the Fresnel parameter determined by the geometrical dimensions of the system which allows for efficient transverse mode discrimination due to the larger diffraction losses of the modes with higher transverse numbers. |
| |
Keywords: | Bragg resonator Diffraction losses Distributed feedback Mode selection |
本文献已被 ScienceDirect 等数据库收录! |
|