skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Surface acoustic wave regulated single photon emission from a coupled quantum dot–nanocavity system

Abstract

A coupled quantum dot–nanocavity system in the weak coupling regime of cavity-quantumelectrodynamics is dynamically tuned in and out of resonance by the coherent elastic field of a f{sub SAW} ≃ 800 MHz surface acoustic wave. When the system is brought to resonance by the sound wave, light-matter interaction is strongly increased by the Purcell effect. This leads to a precisely timed single photon emission as confirmed by the second order photon correlation function, g{sup (2)}. All relevant frequencies of our experiment are faithfully identified in the Fourier transform of g{sup (2)}, demonstrating high fidelity regulation of the stream of single photons emitted by the system.

Authors:
; ; ;  [1];  [2]; ;  [3];  [2];  [3]
  1. Lehrstuhl für Experimentalphysik 1 and Augsburg Centre for Innovative Technologies (ACIT), Universität Augsburg, Universitätsstr. 1, 86159 Augsburg (Germany)
  2. (NIM), Schellingstr. 4, 80799 München (Germany)
  3. Walter Schottky Institut and Physik Department E24, TU München, Am Coulombwall 4, 85748 Garching (Germany)
Publication Date:
OSTI Identifier:
22594477
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 3; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CORRELATION FUNCTIONS; CORRELATIONS; COUPLING; ELASTICITY; FOURIER TRANSFORMATION; MHZ RANGE 100-1000; PHOTON EMISSION; PHOTONS; QUANTUM DOTS; QUANTUM ELECTRODYNAMICS; REGULATIONS; RESONANCE; SOUND WAVES; SURFACES

Citation Formats

Weiß, M., Kapfinger, S., Wixforth, A., Krenner, H. J., E-mail: hubert.krenner@physik.uni-augsburg.de, Nanosystems Initiative Munich, Reichert, T., Finley, J. J., Nanosystems Initiative Munich, and Kaniber, M.. Surface acoustic wave regulated single photon emission from a coupled quantum dot–nanocavity system. United States: N. p., 2016. Web. doi:10.1063/1.4959079.
Weiß, M., Kapfinger, S., Wixforth, A., Krenner, H. J., E-mail: hubert.krenner@physik.uni-augsburg.de, Nanosystems Initiative Munich, Reichert, T., Finley, J. J., Nanosystems Initiative Munich, & Kaniber, M.. Surface acoustic wave regulated single photon emission from a coupled quantum dot–nanocavity system. United States. doi:10.1063/1.4959079.
Weiß, M., Kapfinger, S., Wixforth, A., Krenner, H. J., E-mail: hubert.krenner@physik.uni-augsburg.de, Nanosystems Initiative Munich, Reichert, T., Finley, J. J., Nanosystems Initiative Munich, and Kaniber, M.. 2016. "Surface acoustic wave regulated single photon emission from a coupled quantum dot–nanocavity system". United States. doi:10.1063/1.4959079.
@article{osti_22594477,
title = {Surface acoustic wave regulated single photon emission from a coupled quantum dot–nanocavity system},
author = {Weiß, M. and Kapfinger, S. and Wixforth, A. and Krenner, H. J., E-mail: hubert.krenner@physik.uni-augsburg.de and Nanosystems Initiative Munich and Reichert, T. and Finley, J. J. and Nanosystems Initiative Munich and Kaniber, M.},
abstractNote = {A coupled quantum dot–nanocavity system in the weak coupling regime of cavity-quantumelectrodynamics is dynamically tuned in and out of resonance by the coherent elastic field of a f{sub SAW} ≃ 800 MHz surface acoustic wave. When the system is brought to resonance by the sound wave, light-matter interaction is strongly increased by the Purcell effect. This leads to a precisely timed single photon emission as confirmed by the second order photon correlation function, g{sup (2)}. All relevant frequencies of our experiment are faithfully identified in the Fourier transform of g{sup (2)}, demonstrating high fidelity regulation of the stream of single photons emitted by the system.},
doi = {10.1063/1.4959079},
journal = {Applied Physics Letters},
number = 3,
volume = 109,
place = {United States},
year = 2016,
month = 7
}
  • Cited by 34
  • We report on the enhancement of the spontaneous emission in the visible red spectral range from site-controlled InP/GaInP quantum dots by resonant coupling to Tamm-plasmon modes confined beneath gold disks in a hybrid metal/semiconductor structure. The enhancement of the emission intensity is confirmed by spatially resolved micro-photoluminescence area scans and temperature dependent measurements. Single photon emission from our coupled system is verified via second order autocorrelation measurements. We observe bright single quantum dot emission of up to ∼173 000 detected photons per second at a repetition rate of the excitation source of 82 MHz, and calculate an extraction efficiency of our devicemore » as high as 7%.« less
  • In this paper, the exact non-Markovian dynamics of open quantum systems in the presence of initial system-reservoir correlations is investigated for a photonic cavity system coupled to a general non-Markovian reservoir. The exact time-convolutionless master equation incorporating with initial system-reservoir correlations is obtained. The non-Markovian dynamics of the reservoir and the effects of the initial correlations are embedded into the time-dependent coefficients in the master equation. We show that the effects induced by the initial correlations play an important role in the non-Markovian dynamics of the cavity but they are washed out in the steady-state limit in the Markovian regime.more » Moreover, the initial two-photon correlation between the cavity and the reservoir can induce nontrivial squeezing dynamics to the cavity field.« less
  • We report on the realization of a quantum dot (QD) based single-photon source with a record-high single-photon emission rate. The quantum light source consists of an InGaAs QD which is deterministically integrated within a monolithic microlens with a distributed Bragg reflector as back-side mirror, which is triggered using the frequency-doubled emission of a mode-locked vertical-external-cavity surface-emitting laser (ML-VECSEL). The utilized compact and stable laser system allows us to excite the single-QD microlens at a wavelength of 508 nm with a pulse repetition rate close to 500 MHz at a pulse width of 4.2 ps. Probing the photon statistics of the emission frommore » a single QD state at saturation, we demonstrate single-photon emission of the QD-microlens chip with g{sup (2)}(0) < 0.03 at a record-high single-photon flux of (143 ± 16) MHz collected by the first lens of the detection system. Our approach is fully compatible with resonant excitation schemes using wavelength tunable ML-VECSELs, which will optimize the quantum optical properties of the single-photon emission in terms of photon indistinguishability.« less
  • We analyze the dynamics of single-photon transport in a single-mode waveguide coupled to a micro-optical resonator by using a fully quantum-mechanical model. We examine the propagation of a single-photon Gaussian packet through the system under various coupling conditions. We review the theory of single-photon transport phenomena as applied to the system and we develop a discussion on the numerical technique we used to solve for dynamical behavior of the quantized field. To demonstrate our method and to establish robust single-photon results, we study the process of adiabatically lowering or raising the energy of a single photon trapped in an opticalmore » resonator under active tuning of the resonator. We show that our fully quantum-mechanical approach reproduces the semiclassical result in the appropriate limit and that the adiabatic invariant has the same form in each case. Finally, we explore the trapping of a single photon in a system of dynamically tuned, coupled optical cavities.« less