Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1134/S0021364016180119
Аннотация: A new optical state at the boundary of a chiral medium whose dielectric tensor has a helical symmetry is described analytically and numerically. The case of zero tangential wavenumber is considered. The state localized near the boundary does not transfer energy along this boundary and decreases exponentially with the distance from Показать полностьюthe boundary. The penetration of the field into the chiral medium is blocked at wavelengths corresponding to the photonic band gap and close to the pitch of the helix. The polarization of light near the boundary has the same sign of chirality as the helical symmetry. It is shown that the homogeneous environment or a substrate should exhibit anisotropic metallic reflection. The spectral manifestation of the state is determined by the angle between the optical axes of the media at the interface. A state at the interface between a cholesteric liquid crystal and an anisotropic metal-dielectric nanocomposite was considered as an example.
Журнал: JETP LETTERS
Выпуск журнала: Vol. 104, Is. 6
Номера страниц: 380-383
ISSN журнала: 00213640
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER