Transport properties of a single plasmon interacting with a hybrid exciton of a metal nanoparticle–semiconductor quantum dot system coupled to a plasmonic waveguide

Abstract

Transport properties of a single plasmon interacting with a hybrid system composed of a semiconductor quantum dot (SQD) and a metal nanoparticle (MNP) coupled to one-dimensional surface plasmonic waveguide are investigated theoretically via the real-space approach. We considered that the MNP-SQD interaction leads to the formation of a hybrid exciton and the transmission and reflection of a single incident plasmon could be controlled by adjusting the frequency of the classical control field applied to the MNP-SQD hybrid nanosystem, the kinds of metallic nanoparticles and the background media, respectively. The transport properties of a single plasmon interacting with such a hybrid nanosystem discussed here could find the applications in the design of next-generation quantum devices such as single photon switching and nanomirrors, and in quantum information processing.

Dual-frequency unidirectional reflectionlessness in a non-Hermitian quantum system of two different energy-level quantum dots coupled to a plasmonic waveguide

“…Not only that, based on quantum systems of Hermitian [15][16][17][18][19] and non-Hermitian [20][21][22][23][24][25][26][27][28][29][30][31][32][33], transport properties of surface plasmon (SP) or photon in one-dimensional (1D) waveguide had been researched widely during the decade years. Especially, in non-Hermitian system, Chang et al [20] studied the transport properties of SP based on the nanowire interacting with a two-level emitter.…”

Feasible Surface Plasmon Routing Based on the Self-Assembled InGaAs/GaAs Semiconductor Quantum Dot Located Between Two Silver Metallic Waveguides

“…With the widely use of single photons as information carriers rather than the limited electrons, the research of the quantum information processing has rapidly growth and bec ome one of the most promising fields [1,2]. Photons are very extensively used in quantum information processing, such as quantum network [3], quantum computation [4][5][6][7], quan tum communication [8,9], and quantum devices [10][11][12][13][14][15][16][17][18][19][20][21] by controlling the state of single photons due to the speed of light and their robustness against various sources of decohere nce. Generally, photons interact weakly with the external environment, therefore we need to find the good ways of controlling the quantum states of photons.…”

Entanglement of two distant quantum dots with the flip-flop interaction coupled to plasmonic waveguide

“…A single plasmon transport [13][14][15][16] and an adequate controlling way of quantum entanglement [17][18][19] based on the plasmonic waveguide provide us many promising applications for design of simple quantum logic gates. Two main ways have been proposed to investigate the single plasmon transport and entanglement of two qubits: optical cavities [20] with single mode or a collection of discrete modes and waveguides [21,22] with continuum of modes.…”

“…Two main ways have been proposed to investigate the single plasmon transport and entanglement of two qubits: optical cavities [20] with single mode or a collection of discrete modes and waveguides [21,22] with continuum of modes. Especially, the real-space method [5] is investigated theoretically for single plasmon transport [13][14][15][16] and entanglement of QDs [18,19], which indicates that the high spontaneous emission can be achieved for systems with a quantum dot doped inside a photonic crystal waveguide. Up to the present, they mainly focus on the cases where the quantum emitters are all the same and they also neglect the interaction between quantum emitters.…”