Coherent Dynamics in Quantum Emitters under Dichromatic Excitation.

  title={Coherent Dynamics in Quantum Emitters under Dichromatic Excitation.},
  author={Zhe Xian Koong and Eleanor Scerri and Markus Rambach and Moritz Cygorek and Mauro Brotons-Gisbert and Reynald Boula Picard and Y. Ma and S. I. Park and Junliang Song and Erik M. Gauger and Brian D. Gerardot},
  journal={Physical review letters},
  volume={126 4},
We characterize the coherent dynamics of a two-level quantum emitter driven by a pair of symmetrically detuned phase-locked pulses. The promise of dichromatic excitation is to spectrally isolate the excitation laser from the quantum emission, enabling background-free photon extraction from the emitter. While excitation is not possible without spectral overlap between the exciting pulse and the quantum emitter transition for ideal two-level systems due to cancellation of the accumulated pulse… 

Figures from this paper

Numerically-exact simulations of arbitrary open quantum systems using automated compression of environments

Moritz Cygorek, Michael Cosacchi, Alexei Vagov, Vollrath Martin Axt, Brendon W. Lovett, Jonathan Keeling, and Erik M. Gauger SUPA, Institute of Photonics and Quantum Sciences, Heriot-Watt University,

Phonon-decoupled di-chromatic pumping scheme for highly efficient and indistinguishable single-photon sources

A key problem within single-photon sources engineering is to achieve population inversion of a quantum emitter on-demand and with the highest possible fidelity, without resorting to resonant laser

Highly efficient and indistinguishable single-photon sources via phonon-decoupled two-color excitation

Single-photon sources with near-unity efficiency and indistinguishability play a major role in the development of quantum technologies. However, on-demand excitation of the emitter imposes

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

We present a driving scheme for solid-state quantum emitters using frequency-swept pulses con-taining a spectral hole resonant with the optical transition in the emitter. Our scheme enables

Swing-up dynamics in quantum emitter cavity systems

In the SUPER scheme (Swing-UP of the quantum EmitteR population), excitation of a quantum emitter is achieved with two off-resonant, red-detuned laser pulses. This allows generation of high-quality

Dressed-state analysis of two-color excitation schemes

To coherently control a few-level quantum emitter, typically pulses with an energy resonant to the transition energy are applied making use of the Rabi mechanism, while a single off-resonant pulse

Epitaxial quantum dots: a semiconductor launchpad for photonic quantum technologies

Abstract. Epitaxial quantum dots formed by III–V compound semiconductors are excellent sources of non-classical photons, creating single photons and entangled multi-photon states on demand. Their

Near-unity efficiency and photon indistinguishability for the “hourglass” single-photon source using suppression of the background emission

An on-going challenge within scalable optical quantum information processing is to increase the collection efficiency ε and the photon indistinguishability η of the single-photon source toward unity.

Principal frequency, super-bandwidth, and low-order harmonics generated by super-oscillatory pulses

An alternative definition to the main frequency of an ultra-short laser pulse, named principal frequency ( ω P ), was recently introduced in E.G. Neyra, et al. Phys. Rev. A 103 , 053124 (2021),

Coherence behaviors of an atom immersing in a massive scalar field

We investigate the behaviors of quantum coherence (QC) for an uniformly accelerating atom coupling to a massive scalar field in the Minkowski vacuum and a static atom immersing in a thermal bath of

Coherently driving a single quantum two-level system with dichromatic laser pulses

The excitation of individual two-level quantum systems using an electromagnetic field is an elementary tool of quantum optics, with widespread applications across quantum technologies. The efficient

Fundamental Limits to Coherent Photon Generation with Solid-State Atomlike Transitions.

It is observed that the coupling of the atomiclike transitions to the vibronic transitions of the crystal lattice is independent of the driving strength, even for detuned excitation using the spin-Λ configuration.

Quantum interference of electrically generated single photons from a quantum dot

An electrically driven single-photon source emitting indistinguishable photons is reported, consisting of a layer of InAs quantum dots embedded in the intrinsic region of a p-i-n diode, and a complete theory based on the interference of photons with a Lorentzian spectrum is presented.

Efficient Pulse‐Excitation Techniques for Single Photon Sources from Quantum Dots in Optical Cavities

Rigorous and intuitive master equation models are presented to study on‐demand single photon sources from pulse‐excited quantum dots coupled to optical cavities. Three methods of source excitation

Highly indistinguishable single photons from incoherently excited quantum dots

Semiconductor quantum dots are converging towards the demanding requirements of photonic quantum technologies. Among different systems, quantum dots with dimensions exceeding the free-exciton Bohr

Fundamental Limits to Coherent Scattering and Photon Coalescence from Solid-State Quantum Emitters

The desire to produce high-quality single photons for applications in quantum information science has lead to renewed interest in exploring solid-state emitters in the weak excitation regime. Under

Pulsed excitation dynamics in quantum-dot–cavity systems: Limits to optimizing the fidelity of on-demand single-photon sources

A quantum dot coupled to an optical cavity has recently proven to be an excellent source of on-demand single photons. Typically, applications require simultaneous high efficiency of the source and

Intrinsic and environmental effects on the interference properties of a high-performance quantum dot single-photon source

We report a joint experimental and theoretical study of the interference properties of a single photon source based on a In(Ga)As quantum dot embedded in a quasi-planar GaAs-microcavity. Using

Excitation-induced dephasing in a resonantly driven InAs/GaAs quantum dot.

Coherent emission of the neutral exciton state in a single semiconductor self-assembled InAs/GaAs quantum dot embedded in a one-dimensional waveguide, under resonant picosecond pulsed excitation, leads to an additional relaxation term of the excited-state population.

Measurement and modification of biexciton-exciton time correlations.

It is shown that the correlation can be reduced by tuning the biexciton transition in resonance to a planar distributed Bragg reflector cavity and this is essential for schemes like creating time-bin entangled photon pairs from quantum dot systems.