Model for confined Tamm plasmon devices
Model for confined Tamm plasmon devices
复制标题
DOI：
10.1364/josab.36.000125
复制
发表时间：
2019-01-01
影响因子：
1.9
通讯作者：
Oulton, Ruth
中科院分区：
文献类型：
--
作者：
Adams, Mike;Cemlyn, Ben;Oulton, Ruth
结果表明，多层四分之一波Bragg反射器和支撑Tamm等离子体的金属反射镜之间形成的空腔可以用硬镜近似来模拟，包括对反射镜的适当穿透深度。该模型的计算结果与数值计算结果吻合较好。此外，垂直腔面发射激光器中普遍采用的有效折射率模型可以描述受沉积在布拉格反射器上的金属盘的横向限制的塔图姆模。这使得由圆盘约束的横向模可以从传统的弱导波导理论中找到，类似于用于光纤的理论。这些线偏振导模的谐振波长被计算为圆盘直径和其他参数的函数。由光学学会根据知识共享署名4.0许可证的条款出版。
It is shown that cavities formed between a multilayer quarter-wave Bragg reflector and a metal mirror that support Tamm plasmons can be modeled by using a hard-mirror approximation, including appropriate penetration depths into the mirrors. Results from this model are in excellent agreement with those found by numerical methods. In addition, Tatum modes that are laterally confined by the presence of a metallic disk deposited on the Bragg reflector can be described by the effective index model that is commonly used for vertical-cavity surface-emitting lasers. This enables the lateral modes confined by a circular disk to be found from conventional weakly guiding waveguide theory similar to that used for optical fibers. The resonant wavelengths of these linearly polarized guided modes are calculated as functions of disk diameter and other parameters. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.