AI 中文总结
研究如何确定介质环形谐振器有效折射率,提出两种互补开源有限元框架方法,一种计算离散模数谐振波长插值求有效折射率,另一种直接求解规定波长方位模数,经验证效果相近,固定模数法内存使用减半,适合内存受限计算机。
AI 中文摘要
本文基于两种互补方法,提出了用于介质环形谐振器模态分析的开源有限元框架。第一种方法通过计算离散方位模数的谐振波长,并通过插值获得目标波长处的有效折射率;第二种方法通过二次特征值公式直接求解规定波长处的方位模数。两种方法均通过商业电磁模式求解器进行了验证,得到了几乎相同的有效折射率和色散曲线。固定模数方法计算时间稍长,但内存使用量减半,是内存受限计算机的首选。
英文摘要
Open-source finite-element frameworks for modal analysis of dielectric ring resonators are presented based on two complementary approaches. The first computes resonant wavelengths for discrete azimuthal mode numbers and obtains the effective index at a target wavelength by interpolation; the second solves directly for the azimuthal mode number at a prescribed wavelength via a quadratic eigenvalue formulation. Both approaches are validated against a commercial electromagnetic mode solver and yield nearly identical effective indices and dispersion curves. The fixed-mode-number approach requires slightly longer computation time but uses half as much memory, making it the preferred choice for memory-limited computers.
Comments8 pages, 4 figures