Energy-selective optical excitation and detection in InAs/InP quantum dot ensembles using a one-dimensional optical microcavity

摘要

We demonstrate the selective optical excitation and detection of subsets of quantum dots (QDs) within an InAs/lnP ensemble using a SiO_2/Ta_2O_5-based optical microcavity. The low variance of the exciton transition energy and dipole moment tied to the narrow linewidth of the microcavity mode is expected to facilitate effective qubit encoding and manipulation in a quantum dot ensemble with ease of quantum state readout relative to qubits encoded in single quantum dots.