Quantum Imaging of Photonic Spin Texture in an OAM Beam with NV Centers in Diamond

• URL: http://arxiv.org/abs/2502.18400v1
• Date: Tue, 25 Feb 2025 17:49:47 GMT
• Title: Quantum Imaging of Photonic Spin Texture in an OAM Beam with NV Centers in Diamond
• Authors: Shoaib Mahmud, Wei Zhang, Farid Kalhor, Pronoy Das, Zubin Jacob,
• Abstract summary: Photonic spin texture (PST) is connected to unique properties of light, such as optical skyrmions and topological optical N-invariants.<n>Here, we demonstrate nitrogen-vacancy (NV) centers in diamond as nanoscale quantum sensors for imaging the PST of a beam with orbital angular momentum (OAM)<n>Our work can lead to the development of a quantum imaging platform capable of characterization of the spin texture of light at sub-wavelength scales.
• Score: 2.8202443616982884
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Photonic spin texture (PST), the spatial distribution of the spin angular momentum (SAM) of light, is connected to unique properties of light, such as optical skyrmions and topological optical N-invariants. There has been recent progress on the generation and manipulation of PST using various methodologies. However, a challenge remains for the sub-wavelength characterization of PST. Here, we demonstrate nitrogen-vacancy (NV) centers in diamond as nanoscale quantum sensors for imaging the PST of a beam with orbital angular momentum (OAM). Leveraging the coherent interaction between photon spin and NV center electron spin at cryogenic temperature (77 K), and using the Hahn-Echo magnetometry technique, we experimentally demonstrate the imprinting of the PST on the quantum phase of NV centers. Our work can lead to the development of a quantum imaging platform capable of characterization of the spin texture of light at sub-wavelength scales.

Related papers

• Generation of narrowband quantum emitters in hBN with optically addressable spins [0.16365624921211983]
  We report on a single step, thermal processing of hBN flakes that produces high density, narrowband, quantum emitters with optically active spin transitions.<n>Remarkably, over 25% of the emitters exhibit a clear signature of an optical spin readout at room temperature, surpassing all previously reported results by an order of magnitude.<n>Our work advances the understanding of spin complexes in hBN and paves the way for single spin - photon interfaces in layered vdW materials with applications in quantum sensing and information processing.
  arXiv  Detail & Related papers  (2025-01-25T22:56:56Z)
• Ultra-high strained diamond spin register with coherent optical link [45.40010446596688]
  Solid-state spin defects, such as color centers in diamond, are among the most promising candidates for scalable and integrated quantum technologies. We show that leveraging an ultra-high strained silicon-vacancy center inside a nanodiamond allows us to coherently and efficiently control its electron spin, while mitigating phonon-induced dephasing at liquid helium temperature. Our work paves the way for future integration of quantum network registers into conventional, well-established photonics and hybrid quantum communication systems.
  arXiv  Detail & Related papers  (2024-09-19T10:46:24Z)
• Room Temperature Dynamics of an Optically Addressable Single Spin in Hexagonal Boron Nitride [0.0]
  We characterize a single emitter in h-BN exhibiting room temperature optically detected magnetic resonance. This constitutes a necessary step towards quantum control of spin states in h-BN.
  arXiv  Detail & Related papers  (2023-09-11T16:36:22Z)
• A diamond nanophotonic interface with an optically accessible deterministic electronuclear spin register [44.62475518267084]
  We present a fibre-packaged nanophotonic diamond waveguide hosting a tin-vacancy centre with a spin-1/2 $117$Sn nucleus. The interaction between the electronic and nuclear spins results in a signature 452(4) MHz hyperfine splitting. This exceeds the natural optical linewidth by a factor of 16, enabling direct optical nuclear-spin initialisation. We demonstrate a spin-gated single-photon nonlinearity with 11(1)% contrast in the absence of an external magnetic field.
  arXiv  Detail & Related papers  (2023-05-30T10:30:07Z)
• 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)
• Energy-efficient quantum non-demolition measurement with a spin-photon interface [0.0]
  We study the potential of a SPI for quantum non demolition (QND) measurements of a spin state. We show that quantum superpositions of zero and single photon states outperform coherent pulses of light. The proposed schemes are robust against imperfections in state of the art semi-conducting devices.
  arXiv  Detail & Related papers  (2022-05-19T15:38:18Z)
• Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
  We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces. With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
  arXiv  Detail & Related papers  (2022-03-28T19:37:08Z)
• Multidimensional cluster states using a single spin-photon interface coupled strongly to an intrinsic nuclear register [48.7576911714538]
  Photonic cluster states are a powerful resource for measurement-based quantum computing and loss-tolerant quantum communication. We propose the generation of multi-dimensional lattice cluster states using a single, efficient spin-photon interface coupled strongly to a nuclear register.
  arXiv  Detail & Related papers  (2021-04-26T14:41:01Z)
• Quantum structured light: Non-classical spin texture of twisted single-photon pulses [8.19841678851784]
  A framework for the quantum density of spin and OAM for single-photons remains elusive. We develop a theoretical framework and put forth the concept of quantum structured light for space-time wavepackets at the single-photon level. Our work paves the way for quantum spin-OAM physics in twisted single photon pulses.
  arXiv  Detail & Related papers  (2021-02-26T01:08:57Z)
• Quantum sensing of photonic spin density [6.174721516017139]
  Photonic spin density (PSD) in the near-field gives rise to exotic phenomena such as photonic skyrmions, optical spin-momentum locking and unidirectional topological edge waves. Here, we propose and demonstrate that the nitrogen-vacancy (NV) center in diamond can be used as a quantum sensor for detecting the spinning nature of photons.
  arXiv  Detail & Related papers  (2021-02-22T21:41:22Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)
• Entanglement robustness to excitonic spin precession in a quantum dot [43.55994393060723]
  A semiconductor quantum dot (QD) is an attractive resource to generate polarization-entangled photon pairs. We study the excitonic spin precession (flip-flop) in a family of QDs with different excitonic fine-structure splitting (FSS) Our results reveal that coherent processes leave the time post-selected entanglement of QDs unaffected while changing the eigenstates of the system.
  arXiv  Detail & Related papers  (2020-01-31T13:50:51Z)

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.