Journal of Physics: Conference Series 865, 012007 (2017)

ISBN: 1742-6596

On the theory of three types of polaritons (phonon, exciton and plasmon polaritons)

Duong Thi Ha, Dinh Thi Thuy, Vo Thi Hoa, Tran Thi Thanh Van, Nguyen Ai Viet

We have investigated the similarities and difference between three well-known types of polaritons: phonon polariton, exciton polariton and surface plasmon polariton. For first two types (phonon polariton and exciton polariton) the interaction between photon and media can be expressed via a longitudinal-transversal splitting (LT-splitting), while for third type of polariton (surface plasmon polariton) via the boundary condition. Considering an analogy of these three types of polaritons, an effective LT-splitting was introduced for surface plasmon polariton. We discuss a possible existence of an evanescent state in the band gap of polaritons. Finally, the Nambu broken symmetry theory and Anderson-Higgs mechanism are discussed for lower branch of these polaritons.

DOI: 10.1088/1742-6596/865/1/012007

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