Pulse shaping for on-demand emission of single Raman photons from a quantum-dot biexciton

• URL: http://arxiv.org/abs/2104.13781v1
• Date: Wed, 28 Apr 2021 14:12:56 GMT
• Title: Pulse shaping for on-demand emission of single Raman photons from a quantum-dot biexciton
• Authors: Tom Praschan, Dirk Heinze, Dominik Breddermann, Artur Zrenner, Andrea Walther, Stefan Schumacher
• Abstract summary: We study single photon emission from an optically driven two-photon Raman transition between the biexciton and the ground state of a quantum dot. The advantage of this process is that it allows all-optical control of the properties of the emitted single photon with a laser pulse. We show that laser pulses with non-trivial shapes can be used to maintain excitation conditions for which with increasing pulse intensities the on-demand regime is reached.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Semiconductor quantum dots embedded in optical cavities are promising on-demand sources of single photons. Here, we theoretically study single photon emission from an optically driven two-photon Raman transition between the biexciton and the ground state of a quantum dot. The advantage of this process is that it allows all-optical control of the properties of the emitted single photon with a laser pulse. However, with the presence of other decay channels and excitation-induced quantum interference, on-demand emission of the single Raman photon is generally difficult to achieve. Here we show that laser pulses with non-trivial shapes can be used to maintain excitation conditions for which with increasing pulse intensities the on-demand regime is reached. To provide a realistic picture of the achievable system performance, we include phonon-mediated processes in the theoretical caluclations. While preserving both high photon purity and indistinguishability, we find that although based on a higher-order emission process, for realistic system parameters on-demand Raman photon emission is indeed achievable with suitably tailored laser pulses.

Related papers

• All-optical modulation with single-photons using electron avalanche [69.65384453064829]
  We demonstrate all-optical modulation using a beam with single-photon intensity. Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
  arXiv  Detail & Related papers  (2023-12-18T20:14:15Z)
• On-demand indistinguishable and entangled photons using tailored cavity designs [0.0]
  We focus on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishability. We demonstrate that a suitably tailored circular Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement. We report non-trivial dependencies on system parameters and use the predictive power of our combined theoretical approach to determine the optimal range of Purcell enhancement.
  arXiv  Detail & Related papers  (2023-03-24T09:26:03Z)
• Swing-up dynamics in quantum emitter cavity systems [0.0]
  In the Super scheme, excitation of a quantum emitter is achieved with two off-resonant, red-detuned laser pulses. We extend this promising method to quantum emitters, specifically semiconductor quantum dots, inside a resonant optical cavity.
  arXiv  Detail & Related papers  (2023-03-22T14:42:57Z)
• On-chip quantum information processing with distinguishable photons [55.41644538483948]
  Multi-photon interference is at the heart of photonic quantum technologies. Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources. We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
  arXiv  Detail & Related papers  (2022-10-14T18:16:49Z)
• Silicon nitride waveguides with intrinsic single-photon emitters for integrated quantum photonics [97.5153823429076]
  We show the first successful coupling of photons from intrinsic single-photon emitters in SiN to monolithically integrated waveguides made of the same material. Results pave the way toward the realization of scalable, technology-ready quantum photonic integrated circuitry.
  arXiv  Detail & Related papers  (2022-05-17T16:51:29Z)
• Two-Photon Excitation Sets Limit to Entangled Photon Pair Generation from Quantum Emitters [0.0]
  Entangled photon pairs are key to many novel applications in quantum technologies. Semiconductor quantum dots can be used as sources of on-demand, highly entangled photons.
  arXiv  Detail & Related papers  (2022-05-06T17:46:38Z)
• Stimulated generation of indistinguishable single photons from a quantum ladder system [0.0]
  We propose a scheme for the generation of highly indistinguishable single photons using semiconductor quantum dots. The scheme is based on the resonant two-photon excitation of the biexciton followed by stimulation of the biexciton to selectively prepare an exciton.
  arXiv  Detail & Related papers  (2021-07-07T14:04:35Z)
• Two-photon resonance fluorescence of two interacting non-identical quantum emitters [77.34726150561087]
  We study a system of two interacting, non-indentical quantum emitters driven by a coherent field. We show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters. This can be exploited for applications such as superresolution imaging of point-like sources.
  arXiv  Detail & Related papers  (2021-06-04T16:13:01Z)
• Strongly entangled system-reservoir dynamics with multiphoton pulses beyond the two-excitation limit: Exciting the atom-photon bound state [62.997667081978825]
  We study the non-Markovian feedback dynamics of a two-level system interacting with the electromagnetic field inside a semi-infinite waveguide. We compare the trapped excitation for an initially excited quantum emitter and an emitter prepared via quantized pulses containing up to four photons.
  arXiv  Detail & Related papers  (2020-11-07T12:56:16Z)
• Optical repumping of resonantly excited quantum emitters in hexagonal boron nitride [52.77024349608834]
  We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN) Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
  arXiv  Detail & Related papers  (2020-09-11T10:15:22Z)
• On-chip deterministic operation of quantum dots in dual-mode waveguides for a plug-and-play single-photon source [0.0]
  A deterministic source of coherent single photons is an enabling device of quantum-information processing. We present a novel nanophotonic device that enables deterministic pulsed excitation of QDs through the waveguide. We demonstrate a coherent single-photon source that simultaneously achieves high-purity.
  arXiv  Detail & Related papers  (2020-01-29T08:09:53Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.