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

Abstract

We demonstrate the selective optical excitation and detection of subsets of quantum dots (QDs) within an InAs/InP ensemble using a SiO 2 /Ta 2 O 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.

Suppression of space broadening of exciton polariton transport by Bloch oscillation effect

“…With today's micro-/nano-fabricating technologies, physical experimentalists have been able to manufacture many kinds of semiconductor microcavities (SMCs), including photonic dots [15], microcavity arrays [16][17][18], and onedimensional microcavities [19]. In these microcavities, scalar potentials can be generated for the QW excitons or/and the cavity photons.…”