Optical Tamm states in photonic structures made of inhomogeneous material

We demonstrate a tunable optical Tamm state at the interface between a photonic crystal (PC) and a film with non-uniformly varying refractive index. The optical Tamm state is associated with a sharp transmission peak and strong localization of the electric field. It is spectrally located inside the...

Full description

Saved in:
Bibliographic Details
Published in:Optics communications 2018-01, Vol.406, p.103-106
Main Authors: Zheng, Yazhuo, Wang, Yongxing, Luo, Jie, Xu, Ping
Format: Article
Language:English
Subjects:
Inhomogeneous material
Optical Tamm state
Photonic crystal
Tunable
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We demonstrate a tunable optical Tamm state at the interface between a photonic crystal (PC) and a film with non-uniformly varying refractive index. The optical Tamm state is associated with a sharp transmission peak and strong localization of the electric field. It is spectrally located inside the overlapping band gaps. The shift of the optical Tamm state is sensitive to the lattice constant of the inhomogeneous material. Our results provide an approach to tailor interface states in a controllable manner. •Optical Tamm state appears between a photonic crystal and an inhomogeneous film.•The refractive index of inhomogeneous film is not strict periodical.•The wavelength of optical Tamm state peak is sensitive to the size of the film.•The structure can be used in interference filters, environmental sensing devices.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2017.07.082