| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5449843 | Optics Communications | 2017 | 5 Pages |
Abstract
Optical modes in axially asymmetric microtube resonators made by dielectric materials are calculated by means of a semi-analytical approach. The Helmholtz equation for the microtube resonators can be separately solved by decomposing the mode field profile into two parts, i.e., cross-section plane and axial direction. Effective refractive index theory is used to link between the above two parts. Analytic axial fields can be approximated by Airy functions while conventional whispering-gallery mode fields written in term of Bessel functions are characteristics of the field in the cross-section plane. The validity of the semi-analytical formulation is confirmed by comparing with finite element simulations.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yingwu Lan, Shilong Li, Zhongyi Cai, Yongfeng Mei, Suwit Kiravittaya,