Observation of anomalous exciton-polariton bands in (PEA)2PbI4 perovskite based microcavity at room temperature
Abstract
Recently, anomalous energy bands with negative mass attract intensive attention where non-Hermiticity plays an important role. In this work, we observe anomalous exciton-polariton bands in (PEA)2PbI4 perovskite based microcavity at room temperature. We simulate the anomalous band structure using a non-Hermitian coupled oscillator model, which agrees with experiments very well. Our results offer to study non-Hermitian polariton wave dynamics at room temperature.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (15)
Chunzi Xing
Department of Physics, School of Science, Tianjin University 1 , Tianjin 300072,
Xiaokun Zhai
Department of Physics, School of Science, Tianjin University 1 , Tianjin 300072,
Peilin Wang
Chenxi Yang
Jiaxiang Mu
Department of Physics, School of Science, Tianjin University 1 , Tianjin 300072,
Xinmiao Yang
Department of Physics, School of Science, Tianjin University 1 , Tianjin 300072,
Yuan Ren
Yu Li
Yao Li
Dongxue Wang
Xianxiong He
College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology 5 , Beijing 102617,
Yong Zhang
Haitao Dai
Liefeng Feng
Department of Physics, School of Science, Tianjin University 1 , Tianjin 300072,
Tingge Gao
Department of Physics, School of Science, Tianjin University 1 , Tianjin 300072,