Chiral-Selective Tamm Plasmon Polaritons.
Meng-Ying LinWen-Hui XuRashid G BikbaevJhen-Hong YangChang-Ruei LiIvan V TimofeevWei LeeKuo-Ping ChenPublished in: Materials (Basel, Switzerland) (2021)
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.