Unidirectional reflectionless phenomena in a non-Hermitian quantum system of quantum dots coupled to a plasmonic waveguide

作者：Wu, Nan; Zhang, Cong; Jin, Xing Ri^*; Zhang, Ying Qiao^*; Lee, Youngpak

来源：Optics Express, 2018, 26(4): 3839-3849.

DOI：10.1364/OE.26.003839

• NANOWIRE SURFACE-PLASMONS
• FANO RESONANCE
• TRANSPORT
• ENTANGLEMENT
• HAMILTONIANS
• SCATTERING

Unidirectional reflectionless phenomena are investigated theoretically in a non-Hermitian quantum system composed of several quantum dots and a plasmonic waveguide. By adjusting the phase shifts between quantum dots, single- and dual-band unidirectional reflectionlessnesses are realized at exceptional points based on two and three quantum dots coupled to a plasmonic waveguide, respectively. In addition, single- and dual-band unidirectional perfect absorptions with high quality factors are obtained at the vicinity of exceptional points.

• 出版日期2018-2-19
• 单位延边大学