研究目的
Exploring the behavior of eigenmodes in a coupled nanoantenna system with gain and loss forming a parity-time (PT) symmetric dimer and their potential to control scattering properties.
研究成果
The introduction of gain and loss in a PT-symmetric dimer of plasmonic nanospheres modifies the composition of eigenmodes and breaks their orthogonality, leading to the entanglement of different spatial order and symmetry modes. This entanglement can be exploited to actively control the scattering properties of such systems, offering promising avenues for the realization of active plasmonic metamolecules with tunable and reconfigurable scattering responses.
研究不足
The study is theoretical and relies on quasistatic approximations, which may not fully capture all physical phenomena in real-world applications. The analysis is limited to specific configurations of nanospheres and does not account for all possible variations in geometry or material properties.
