Nanoparticle Stressor-Induced Single-photon Sources in Monolayer WS$_2$ Emitting into a Narrowband Visible Spectral Range

• URL: http://arxiv.org/abs/2310.07578v1
• Date: Wed, 11 Oct 2023 15:19:02 GMT
• Title: Nanoparticle Stressor-Induced Single-photon Sources in Monolayer WS$_2$ Emitting into a Narrowband Visible Spectral Range
• Authors: J. Thoppil S, Y. Waheed, S. Shit, I. D. Prasad, K. Watanabe, T. Taniguchi, and S. Kumar
• Abstract summary: A van der Waals heterostructure containing an atomically thin monolayer transition-metal dichalcogenide as a single-photon emitting layer is emerging as an intriguing solid-state quantum-photonic platform.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: A van der Waals heterostructure containing an atomically thin monolayer transition-metal dichalcogenide as a single-photon emitting layer is emerging as an intriguing solid-state quantum-photonic platform. Here, we report the utilization of spin-coating of silica nanoparticles for deterministically creating the spectrally isolated, energetically stable, and narrow-linewidth single-photon emitters in ML-WS$_2$. We also demonstrate that long-duration low-temperature annealing of the photonic heterostructure in the vacuum removes the energetically unstable emitters that are present due to fabrication-associated residue and lead to the emission of single-photons in a <25 nm narrowband visible spectral range centered at $\sim$620 nm. This work may pave the way toward realizing a hybrid-quantum-photonic platform containing a van der Waals heterostructure/device and an atomic-vapor system emitting/absorbing in the same visible spectral range.

Related papers

• Single photon emitters in monolayer semiconductors coupled to transition metal dichalcogenide nanoantennas on silica and gold substrates [49.87501877273686]
  Transition metal dichalcogenide (TMD) single photon emitters offer numerous advantages to quantum information applications. Traditional materials used for the fabrication of nanoresonators, such as silicon or gallium phosphide (GaP), often require a high refractive index substrate. Here, we use nanoantennas (NAs) fabricated from multilayer TMDs, which allow complete flexibility with the choice of substrate.
  arXiv  Detail & Related papers  (2024-08-02T07:44:29Z)
• 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)
• Quantum Emitters in Aluminum Nitride Induced by Zirconium Ion Implantation [70.64959705888512]
  This study investigates aluminum nitride (AlN) as a material with properties highly suitable for integrated on-chip photonics. We conduct a comprehensive study of the creation and photophysical properties of single-photon emitters in AlN utilizing Zirconium (Zr) and Krypton (Kr) heavy ion implantation. With the 532 nm excitation wavelength, we found that single-photon emitters induced by ion implantation are primarily associated with vacancy-type defects in the AlN lattice for both Zr and Kr ions.
  arXiv  Detail & Related papers  (2024-01-26T03:50:33Z)
• Photophysics of Intrinsic Single-Photon Emitters in Silicon Nitride at Low Temperatures [97.5153823429076]
  A robust process for fabricating intrinsic single-photon emitters in silicon nitride has been recently established. These emitters show promise for quantum applications due to room-temperature operation and monolithic integration with the technologically mature silicon nitride photonics platform.
  arXiv  Detail & Related papers  (2023-01-25T19:53:56Z)
• Photoluminescence imaging of single photon emitters within nanoscale strain profiles in monolayer WSe$_2$ [0.0]
  Local deformation of van der Waals materials provides a powerful approach to create chip-compatible single-photon emitters (SPEs) Here we investigate SPEs with single-photon purity up to 98% created in monolayer WSe$indentation. Using photoluminescence imaging in combination with atomic force microscopy, we locate single-photon emitting sites on a deep sub-wavelength spatial scale.
  arXiv  Detail & Related papers  (2023-01-23T15:21:28Z)
• Van der Waals Materials for Applications in Nanophotonics [49.66467977110429]
  We present an emerging class of layered van der Waals (vdW) crystals as a viable nanophotonics platform. We extract the dielectric response of 11 mechanically exfoliated thin-film (20-200 nm) van der Waals crystals, revealing high refractive indices up to n = 5. We fabricate nanoantennas on SiO$$ and gold utilizing the compatibility of vdW thin films with a variety of substrates.
  arXiv  Detail & Related papers  (2022-08-12T12:57:14Z)
• Bright and polarized fiber in-line single photon source based on plasmon-enhanced emission into nanofiber guided modes [7.767212366020168]
  We show that emission properties of single quantum dots can be strongly enhanced in the presence of single gold nanorods. The single photons are efficiently coupled to guided modes of the nanofiber and eventually to a single mode optical fiber. The present device can be integrated into fiber networks paving the way for potential applications in quantum networks.
  arXiv  Detail & Related papers  (2022-06-27T03:17:52Z)
• Single quantum emitters with spin ground states based on Cl bound excitons in ZnSe [55.41644538483948]
  We show a new type of single photon emitter with potential electron spin qubit based on Cl impurities inSe. Results suggest single Cl impurities are suitable as single photon source with potential photonic interface.
  arXiv  Detail & Related papers  (2022-03-11T04:29:21Z)
• Proximity Induced Chiral Quantum Light Generation in Strain-Engineered WSe2/NiPS3 Heterostructures [16.369573546569338]
  We report free-space generation of highly chiral single photons from QEs created in monolayer WSe2 - NiPS3 heterostructures at zero external magnetic field. These QEs emit in the 760-800 nm range with a degree of circular polarization and single photon purity as high as 0.71 and 80% respectively.
  arXiv  Detail & Related papers  (2022-03-01T23:54:01Z)
• Experimental study of perovskite nanocrystals as single photon sources for integrated quantum photonics [0.0]
  The thesis is devoted to the study of the coupling of single-photon emitters with photonic nanostructures. I present a full characterization of perovskite nanocrystals with improved photo-stability, reduced blinking ad strong antibunching. I show how the near field around ion exchange waveguides can be employed together with near-field polymerization to trap single-photon emitters onto the waveguides.
  arXiv  Detail & Related papers  (2021-05-29T08:12:31Z)
• Room temperature single-photon superfluorescence from a single epitaxial cuboid nano-heterostructure [0.0]
  Single-photon superradiance can emerge when a collection of identical emitters are spatially separated by distances much less than the wavelength of the light they emit. We show that the faces of a heterostructure nanocuboid mimic individual quasi-2D nanoplatelets and can serve as the robust emitters required to realize superradiant phenomena at room temperature.
  arXiv  Detail & Related papers  (2021-04-13T18:52:30Z)

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.