Magnetic steganography based on wide field diamond quantum microscopy

• URL: http://arxiv.org/abs/2411.12243v1
• Date: Tue, 19 Nov 2024 05:45:00 GMT
• Title: Magnetic steganography based on wide field diamond quantum microscopy
• Authors: Jungbae Yoon, Jugyeong Jeong, Hyunjun Jang, Jinsu Jung, Yuhan Lee, Chulki Kim, Nojoon Myoung, Donghun Lee,
• Abstract summary: We experimentally demonstrate magnetic steganography using wide field quantum microscopy based on diamond nitrogen vacancy centers. The method offers magnetic imaging capable of revealing concealed information otherwise invisible with conventional optical measurements.
• Score: 2.2538782370686987
• License:
• Abstract: We experimentally demonstrate magnetic steganography using wide field quantum microscopy based on diamond nitrogen vacancy centers. The method offers magnetic imaging capable of revealing concealed information otherwise invisible with conventional optical measurements. For a proof of principle demonstration of the magnetic steganography, micrometer structures designed as pixel arts, barcodes, and QR codes are fabricated using mixtures of magnetic and nonmagnetic materials, nickel and gold. We compare three different imaging modes based on the changes in frequency, linewidth, and contrast of the NV electron spin resonance, and find that the last mode offers the best quality of reconstructing hidden magnetic images. By simultaneous driving of the NV qutrit states with two independent microwave fields, we expediate the imaging time by a factor of three. This work shows potential applications of quantum magnetic imaging in the field of image steganography.

Related papers

• Quantum Frequency Mixing using an NV Diamond Microscope [4.010160960688796]
  We use quantum frequency mixing to generate wide-field magnetic images of test structures driven by alternating currents up to 70 MHz. With further improvements, this approach could find utility in hyperspectral imaging for electronics power spectrum analysis, electronics diagnostics and troubleshooting, and quantum computing hardware validation.
  arXiv  Detail & Related papers  (2024-07-09T16:46:00Z)
• Imaging magnetism evolution of magnetite to megabar pressure range with quantum sensors in diamond anvil cell [57.91882523720623]
  We develop an in-situ magnetic detection technique at megabar pressures with high sensitivity and sub-microscale spatial resolution. We observe the macroscopic magnetic transition of Fe3O4 in the megabar pressure range from strong ferromagnetism (alpha-Fe3O4) to weak ferromagnetism (beta-Fe3O4) and finally to non-magnetism (gamma-Fe3O4) The presented method can potentially investigate the spin-orbital coupling and magnetism-superconductivity competition in magnetic systems.
  arXiv  Detail & Related papers  (2023-06-13T15:19:22Z)
• 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)
• Toward deep-learning-assisted spectrally-resolved imaging of magnetic noise [52.77024349608834]
  We implement a deep neural network to efficiently reconstruct the spectral density of the underlying fluctuating magnetic field. These results create opportunities for the application of machine-learning methods to color-center-based nanoscale sensing and imaging.
  arXiv  Detail & Related papers  (2022-08-01T19:18:26Z)
• Measuring the magnon-photon coupling in shaped ferromagnets: tuning of the resonance frequency [50.591267188664666]
  cavity photons and ferromagnetic spins excitations can exchange information coherently in hybrid architectures. Speed enhancement is usually achieved by optimizing the geometry of the electromagnetic cavity. We show that the geometry of the ferromagnet plays also an important role, by setting the fundamental frequency of the magnonic resonator.
  arXiv  Detail & Related papers  (2022-07-08T11:28:31Z)
• Sub-second Temporal Magnetic Field Microscopy Using Quantum Defects in Diamond [10.499603209896307]
  Magnetic field microscopy has been realised by probing shifts in optically detected magnetic resonance spectrum of Nitrogen Vacancy (NV) defect centers in diamond. These widefield diamond NV magnetometers require few to several minutes of acquisition to get a single magnetic field image. Here, we show that the magnetic field imaging frame rate can be significantly enhanced by performing lock-in detection of NV photo-luminescence.
  arXiv  Detail & Related papers  (2021-07-26T14:22:02Z)
• Surpassing the Energy Resolution Limit with ferromagnetic torque sensors [55.41644538483948]
  We evaluate the optimal magnetic field resolution taking into account the thermomechanical noise and the mechanical detection noise at the standard quantum limit. We find that the Energy Resolution Limit (ERL), pointed out in recent literature, can be surpassed by many orders of magnitude.
  arXiv  Detail & Related papers  (2021-04-29T15:44:12Z)
• Technical Review: Imaging weak magnetic field patterns on the nanometer-scale and its application to 2D materials [0.0]
  We review the state-of-the-art techniques most amenable to the investigation of such systems. We compare the capabilities of these techniques, their required operating conditions, and assess their suitability to different types of source contrast.
  arXiv  Detail & Related papers  (2021-03-18T17:11:39Z)
• Multi-Angle Reconstruction of Domain Morphology with All-Optical Diamond Magnetometry [0.0]
  We introduce a multi-angle reconstruction technique (MARe) that captures the full nanoscale domain morphology in all magnetic-field regimes. Our approach brings non-invasive nanoscale magnetic field imaging capability to the study of a wider pool of magnetic materials and phenomena.
  arXiv  Detail & Related papers  (2021-01-25T19:00:01Z)
• Quantum metamaterial for nondestructive microwave photon counting [52.77024349608834]
  We introduce a single-photon detector design operating in the microwave domain based on a weakly nonlinear metamaterial. We show that the single-photon detection fidelity increases with the length of the metamaterial to approach one at experimentally realistic lengths. In stark contrast to conventional photon detectors operating in the optical domain, the photon is not destroyed by the detection and the photon wavepacket is minimally disturbed.
  arXiv  Detail & Related papers  (2020-05-13T18:00:03Z)
• Single-spin scanning magnetic microscopy with radial basis function reconstruction algorithm [21.678442505821835]
  We present a scheme to image a millitesla magnetic field by tracking the magnetic resonance frequency. The radial basis function algorithm is employed to reconstruct the magnetic field from the contour lines. Our scheme had a maximum detectable magnetic field gradient of 0.86 mT per pixel.
  arXiv  Detail & Related papers  (2020-02-27T10:33:23Z)

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.