Effective Modes for a Strongly Coupled Quantum Emitter-MoS$_{2}$ Nanodisk System

Abstract

We present an effective modes theory for studying the strong light-matter interaction and better understanding the non-Markovian dynamics of a quantum emitter (QE) coupled to two-dimensional materials. Specifically, we investigate the spontaneous emission of a V-type QE in close proximity to a MoS 2 nanodisk. The non-Markovian population dynamics is observed and found linked to the initial states, indicating that the coupled system enters the strong-coupling regime. The effective modes analysis shows that though a dozen of resonant modes appear in the photonic density of states, only a few modes have significant contribution to the population dynamics. Our work demonstrates the effective modes theory as a powerful tool to explore and optimize the quantum states control of QE by two-dimensional materials.

Strong Coupling Dynamics of a Quantum Emitter near a Topological Insulator Nanoparticle

“…A basic phenomenon under the strong coupling of a QEMI with its nanophotonic surroundings is the exchange of energy between the QEMI and the photonic macrostructure coherently, leading to spontaneous emission (SPEM) dynamics from the QEMI, which are non-Markovian and reversible. This phenomenon has been predicted when a QEMI is coupled to various nanophotonic platforms, including plasmonic nanostructures [5][6][7][8][9][10][11][12][13][14][15][16], epsilon-and-mu-near-zero media [17], twodimensional semiconductors [18][19][20][21][22], graphene nanostructures [23,24], and ferromagnetic or ferrimagnetic nanoparticles [25]. Another class of photonic structures that have the ability to lead to strong light-matter interaction with QEMIs is born through the merger of quantum optics with topological photonics [26][27][28], and is realized by coupling QEMIs with topological photonic structures, like topological one-dimensional waveguides [29], three-dimensional photonic Weyl environments [30], topological photonic crystals [31,32], and a plasmonic nanoantenna, for on-resonance operation, embedded in a topological photonic structure designed for this purpose [33].…”