Work

Four-wave mixing in a semiconductor quantum dot-metal nano ellipsoid hybrid system

Year: 2025

Type: article

Abstract: We investigate how the four-wave mixing (FWM) spectrum of a hybrid nanostructure, comprising a semiconductor quantum dot coupled to an ellipsoidal metal nanoparticle and interacting with a weak probe and strong pump electromagnetic field, depends on various parameters, including interparticle distance, the length and orientation of the polar semiaxis of the ellipsoidal nanoparticle, the polarization direction of the fields, and the detuning of the pump field. We present a general analytical steady-state solution for the density matrix elements and use this solution to define the effective Rabi frequency and detuning parameters, which are incorporated into a dressed-state framework. This approach reveals the impact of these physical parameters on the number, position, and width of resonances in the FWM spectrum, offering insights into their underlying mechanisms.

Source: Results in Physics

DOI: 10.1016/j.rinp.2025.108508

Authors: Andreas Spanos, Emmanuel Paspalakis, Spyridon G. Kosionis

Institution: University of Patras

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,920

Funder: University of Patras