Spectrally-modified frequency-swept pulses for optically-driven quantum light sources

TL;DR

This paper introduces a novel spectrally-modified frequency-swept pulse scheme for solid-state quantum emitters that achieves high-fidelity, robust, and dephasing-resistant optical excitation, enhancing single-photon source performance.

Contribution

The authors propose a new resonant driving method using spectral-hole frequency-swept pulses that improves robustness and fidelity in quantum light sources compared to existing techniques.

Findings

Achieves high-fidelity state inversion in quantum emitters.

Robustness to laser parameter variations and dephasing.

Potential for enhanced single-photon source brightness and indistinguishability.

Abstract

We present a driving scheme for solid-state quantum emitters using frequency-swept pulses containing a spectral hole resonant with the optical transition in the emitter. Our scheme enables high-fidelity state inversion, exhibits robustness to variations in the laser pulse parameters and is immune to phonon-mediated excitation-induced dephasing, benefits that derive from the the insensitivity of the adiabaticity condition to variations in the experimental parameters. Our resonant driving approach could be combined with spectral filtering of the scattered pump light and photonic devices for enhanced collection efficiency to realize simultaneous high indistinguishability and brightness in single photon source applications.