2018/09/20 by Mike Adams, B. R. Cemlyn, Ben Cemlyn +6 · 24 citations
Engineering · Physics and Astronomy · #Materials science #Nanotechnology #Optoelectronics #Photonic Crystals and Applications #Photonic and Optical Devices #Plasmon #Plasmonic and Surface Plasmon Research #physics.optics
paper · pdf · open access · doi:10.1364/josab.36.000125
published in Journal of the Optical Society of America B 36(1), 125 (Optica Publishing Group)
arxiv created 2018/09/20 · openalex publication_date 2018/12/18 · arxiv updated 2019/01/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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, Tamm 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.