Chiral-Selective Tamm Plasmon Polaritons.

Authors :: Lin MY
Xu WH
Bikbaev RG
Yang JH
Li CR
Timofeev IV
Lee W
Chen KP
Source :: Materials (Basel, Switzerland) [Materials (Basel)] 2021 May 24; Vol. 14 (11). Date of Electronic Publication: 2021 May 24.
Publication Year :: 2021
Abstract: Chiral-selective Tamm plasmon polariton (TPP) has been investigated at the interface between a cholesteric liquid crystal and a metasurface. Different from conventional TPP that occurs with distributed Bragg reflectors and metals, the chiral-achiral TPP is successfully demonstrated. The design of the metasurface as a reflective half-wave plate provides phase and polarization matching. Accordingly, a strong localized electric field and sharp resonance are observed and proven to be widely tunable.