Stark effect of quantum blue emitters in hBN

• URL: http://arxiv.org/abs/2208.00600v1
• Date: Mon, 1 Aug 2022 04:12:53 GMT
• Title: Stark effect of quantum blue emitters in hBN
• Authors: Ivan Zhigulin, Jake Horder, Victor Ivady, Simon J. U. White, Angus Gale, Chi Li, Charlene J. Lobo, Milos Toth, Igor Aharonovich and Mehran Kianinia
• Abstract summary: Inhomogeneous broadening is a major limitation for the application of quantum emitters in hBN to integrated quantum photonics. We demonstrate that blue emitters with an emission wavelength of 436 nm are less sensitive to electric fields than other quantum emitter species in hBN.
• Score: 2.239998253134085
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Inhomogeneous broadening is a major limitation for the application of quantum emitters in hBN to integrated quantum photonics. Here we demonstrate that blue emitters with an emission wavelength of 436 nm are less sensitive to electric fields than other quantum emitter species in hBN. Our measurements of Stark shifts indicate negligible transition dipole moments for these centers with dominant quadratic stark effect. Using these results, we employed DFT calculations to identify possible point defects with small transition dipole moments, which may be the source of blue emitters in hBN.

Related papers

• Quantum Efficiency the B-centre in hexagonal boron nitride [0.0]
  B-centres in hexagonal boron nitride (hBN) are gaining significant research interest for quantum photonics applications. Here, we leverage the layered nature of hBN to directly measure the quantum efficiency (QE) of single B-centres. Results indicate that B-centres located in thin flakes can exhibit QEs higher than 40%.
  arXiv  Detail & Related papers  (2024-08-12T08:49:03Z)
• Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
  Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature. We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs. Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
  arXiv  Detail & Related papers  (2024-05-03T23:02:30Z)
• Near-coherent quantum emitters in hexagonal boron nitride with discrete polarization axes [0.0]
  Hexagonal boron nitride (hBN) has recently gained attention as a solid state host of quantum emitters. Here we employ spectral hole burning spectroscopy and resonant polarization measurements to observe nearly-coherent hBN quantum emitters.
  arXiv  Detail & Related papers  (2024-02-19T02:28:06Z)
• Quantum sensing and imaging with spin defects in hexagonal boron nitride [2.8409310270487538]
  Color centers in hexagonal boron nitride (hBN) have emerged as promising candidates for a new wave of quantum applications. The recently discovered optically addressable spin defects in hBN provide a quantum interface between photons and electron spins for quantum sensing applications. This review summarizes the rapidly evolving field of nanoscale and microscale quantum sensing with spin defects in hBN.
  arXiv  Detail & Related papers  (2023-02-22T06:21:28Z)
• Electrical Control of Quantum Emitters in a Van der Waals Heterostructure [2.239998253134085]
  We show an approach to electrically modulate quantum emitters in n hBN graphene van der Waals heterostructure. Notably, a significant number of quantum emitters are intrinsically dark, and become optically active at non-zero voltages. Our results enhance the potential of hBN for tuneable solid state quantum emitters for the growing field of quantum information science.
  arXiv  Detail & Related papers  (2021-11-04T11:03:53Z)
• Near-Field Terahertz Nanoscopy of Coplanar Microwave Resonators [61.035185179008224]
  Superconducting quantum circuits are one of the leading quantum computing platforms. To advance superconducting quantum computing to a point of practical importance, it is critical to identify and address material imperfections that lead to decoherence. Here, we use terahertz Scanning Near-field Optical Microscopy to probe the local dielectric properties and carrier concentrations of wet-etched aluminum resonators on silicon.
  arXiv  Detail & Related papers  (2021-06-24T11:06:34Z)
• Phonon dephasing and spectral diffusion of quantum emitters in hexagonal Boron Nitride [52.915502553459724]
  Quantum emitters in hexagonal boron nitride (hBN) are emerging as bright and robust sources of single photons for applications in quantum optics. We study phonon dephasing and spectral diffusion of quantum emitters in hBN via resonant excitation spectroscopy at cryogenic temperatures.
  arXiv  Detail & Related papers  (2021-05-25T05:56:18Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• 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)
• Mechanical Decoupling of Quantum Emitters in Hexagonal Boron Nitride from Low-Energy Phonon Modes [52.77024349608834]
  Quantum emitters in hexagonal Boron Nitride (hBN) were recently reported to hol a homogeneous linewidth according to the Fourier-Transform limit up to room temperature. This unusual observation was traced back to decoupling from in-plane phonon modes which can arise if the emitter is located between two planes of the hBN host material.
  arXiv  Detail & Related papers  (2020-04-22T20:00:49Z)

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.