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Photonics North (PN)

Adiabatic inversion scheme for solid-state emitters using frequency-swept, spectrally-modified pulses

Kimberley C. Hall, Grant R. Wilbur, Ali Binai-Motlagh, Alison Clarke, A. Ramachandran, Nick Milson, John Healey, Sabine O’Neal, DENNIS GLENN DEPPE

Published May 24, 2022• 0 citations
Publisher

Abstract

Adiabatic control via spectrally-modified pulses is demonstrated as a pumping scheme for solid-state emitters that enables high-fidelity inversion together with spectral isolation of scattered pump light from the emitted photon stream. This scheme paves the way for on-demand single photon sources with simultaneous high single photon purity, indistinguishability and brightness.

DOI
10.1109/pn56061.2022.9908410

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Adiabatic control via spectrally-modified pulses is demonstrated as a pumping scheme for solid-state emitters that enables high-fidelity inversion together with spectral isolation of scattered pump light from the emitted photon stream. This scheme paves the way for on-demand single photon sources with simultaneous high single photon purity, indistinguishability and brightness.
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We present a driving scheme for solid-state quantum emitters, referred to as Notch-filtered Adiabatic Rapid Passage (NARP), that utilizes frequency-swept pulses containing a spectral hole resonant with the optical transition in the emitter. NARP enables high-fidelity state inversion and exhibits robustness to variations in the laser pulse parameters, benefits that are derived from the insensitivity of the condition for adiabatic evolution. NARP also offers the advantage of immunity to phonon-mediated excitation-induced dephasing when positively chirped control pulses are used. 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.
In this presentation I will describe a new laser driving scheme for triggered high-brightness single photon emitters using a chirped laser pulse possessing a spectral hole resonant with the transition energy of the emitter, referred to as Notch-filtered adiabatic rapid passage (NARP). When combined with optimized photonic structures for enhanced collection efficiency and commercial filters we estimate that NARP would provide less than 10-8 scattered photons per emitted photon with a 4% detection loss together with resonant driving for high photon indistinguishability. We demonstrate inversion using NARP experimentally in a single semiconductor QD.
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