Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1859501 | Physics Letters A | 2016 | 4 Pages |
Abstract
Electromagnetic waves propagating in a slab waveguide, whose walls consist of three-dimensional topological insulator, experience a topological cutoff frequency, Ïθ. Once Ïθ depends upon the penetration length of the metallic surface states into the bulk, l, our findings suggest TI-made waveguides as useful apparatus to estimate the microscopic quantity l by measuring the optical response carried out by the macroscopic signature of Ïθ.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
T.M. Melo, D.R. Viana, W.A. Moura-Melo, J.M. Fonseca, A.R. Pereira,