Designing Optically Addressable Nitrogen-Vacancy Centers in Ultra-Small Nanodiamonds: Insights from First-Principles Calculations

• URL: http://arxiv.org/abs/2412.01976v1
• Date: Mon, 02 Dec 2024 21:09:15 GMT
• Title: Designing Optically Addressable Nitrogen-Vacancy Centers in Ultra-Small Nanodiamonds: Insights from First-Principles Calculations
• Authors: Arpan Kundu, Francesco Martinelli, Giulia Galli,
• Abstract summary: We present first-principles electronic structure calculations of color centers in ultrasmall nanodiamonds (USNDs) We find that the nitrogen-vacancy (NV-) can be stabilized in a negative charge state if the nanoparticles are terminated by fluorine, hydroxyl, and ether. Interestingly, the phonon renormalizations of single-particle energy levels found in arrays contribute to the charge stability of negatively charged NV centers.
• Score: 0.0
• License:
• Abstract: Ultrasmall nanodiamonds (USNDs) are promising platforms for fluorescent and quantum sensing applications. Here we present first-principles electronic structure calculations of color centers in USNDs, specifically the nitrogen-vacancy (NV-) and we investigate their optical addressability as a function of the surface termination. We consider both isolated nanoparticles and arrays of USNDs with different degrees of packing, and we include quantum vibronic effects in our analysis, using stochastic methods. We find that the NV in USNDs can be stabilized in a negative charge state if the nanoparticles are terminated by fluorine, hydroxyl, and ether. While fluorine terminations can be used for fluorescent bio-tags, we suggest that hydroxyl and ether terminations are beneficial for quantum sensing applications. We also find that the NV- can be stabilized in arrays of USNDs when inter-particle separations are larger than the diameter of the nanoparticle. Interestingly, the phonon renormalizations of single-particle energy levels found in arrays contribute to the charge stability of negatively charged NV centers.

Related papers

• Materials and spin characteristics of amino-terminated nanodiamonds embedded with nitrogen-vacancy color centers [0.0]
  Proper functionalization of fluorescent nanodiamonds (FNDs) is required for their application as probes in chemical and biological processes. modifying the surface of FNDs can affect the properties of qubit sensors. We study the fundamental properties of embedded nitrogen-vacancy (NV) color centers as a function of FND size and surface termination.
  arXiv  Detail & Related papers  (2025-02-11T17:03:53Z)
• A New Bite Into Dark Matter with the SNSPD-Based QROCODILE Experiment [55.46105000075592]
  We present the first results from the Quantum Resolution-d Cryogenic Observatory for Dark matter Incident at Low Energy (QROCODILE) The QROCODILE experiment uses a microwire-based superconducting nanowire single-photon detector (SNSPD) as a target and sensor for dark matter scattering and absorption. We report new world-leading constraints on the interactions of sub-MeV dark matter particles with masses as low as 30 keV.
  arXiv  Detail & Related papers  (2024-12-20T19:00:00Z)
• 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)
• Optically-Trapped Nanodiamond-Relaxometry Detection of Nanomolar Paramagnetic Spins in Aqueous Environments [2.1352459760485796]
  Nitrogen-Vacancy center in fluorescent nanodiamonds (FNDs) has emerged as a good candidate to sense temperature, pH, and paramagnetic species at the nanoscale. We show that optically-trapped FNDs enable highly reproducible nanomolar sensitivity to the paramagnetic ion.
  arXiv  Detail & Related papers  (2024-01-30T19:00:56Z)
• Quantum-grade nanodiamonds for ultrabright spin detection in live cells [0.49824235871245376]
  Optically accessible spin-active nanomaterials are promising as quantum nanosensors for probing biological samples. We demonstrate ultrabright fluorescent nanodiamonds (NDs) containing 0.6-1.3-ppm nitrogen-vacancy (NV) centers by spin-environment engineering.
  arXiv  Detail & Related papers  (2023-12-29T13:54:28Z)
• Detecting nitrogen-vacancy-hydrogen centers on the nanoscale using nitrogen-vacancy centers in diamond [0.0]
  nitrogen-vacancy-hydrogen complex (NVH) outnumbers the nitrogen vacancy (NV) defect by at least one order of magnitude creating a dense spin bath. Monitoring and controlling the spin bath is essential to produce and understand engineered diamond material with high NV concentrations for quantum applications.
  arXiv  Detail & Related papers  (2023-11-30T15:30:36Z)
• Control of an environmental spin defect beyond the coherence limit of a central spin [79.16635054977068]
  We present a scalable approach to increase the size of electronic-spin registers. We experimentally realize this approach to demonstrate the detection and coherent control of an unknown electronic spin outside the coherence limit of a central NV. Our work paves the way for engineering larger quantum spin registers with the potential to advance nanoscale sensing, enable correlated noise spectroscopy for error correction, and facilitate the realization of spin-chain quantum wires for quantum communication.
  arXiv  Detail & Related papers  (2023-06-29T17:55:16Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• 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)
• Optically coherent nitrogen-vacancy defect centers in diamond nanostructures [0.0]
  Nitrogen-vacancy defect centers (NVs) in diamond act as quantum memories and can be interfaced by coherent photons. We present strategies to significantly reduce the electric noise in diamond nanostructures. We propose an entanglement protocol for nanostructure-coupled NVs providing entanglement generation rates up to hundreds of kHz.
  arXiv  Detail & Related papers  (2022-03-10T19:42:43Z)
• Room temperature single-photon emitters in silicon nitride [97.75917079876487]
  We report on the first-time observation of room-temperature single-photon emitters in silicon nitride (SiN) films grown on silicon dioxide substrates. As SiN has recently emerged as one of the most promising materials for integrated quantum photonics, the proposed platform is suitable for scalable fabrication of quantum on-chip devices.
  arXiv  Detail & Related papers  (2021-04-16T14:20:11Z)

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.