Complex-valued 3D atomic spectroscopy with Gaussian-assisted inline holography

• URL: http://arxiv.org/abs/2405.09117v3
• Date: Sat, 28 Sep 2024 05:51:25 GMT
• Title: Complex-valued 3D atomic spectroscopy with Gaussian-assisted inline holography
• Authors: Xing Huang, Yuzhuo Wang, Jian Zhao, Saijun Wu,
• Abstract summary: We develop a Gaussian-decomposition-assisted approach to inline holography, for single-shot, simultaneous measurements of absorption and phase-shift profiles. The phase-angle readout is not only robust against transition saturation, but also insensitive to atom-number and optical-induced interaction-strength fluctuations. We demonstrate single-shot 3D field sensing by measuring local light shifts to the atomic array with micrometer spatial resolution.
• Score: 5.608499944121466
• License:
• Abstract: When a laser-cooled atomic sample is optically excited, the envelope of coherent forward scattering can often be decomposed into a few complex Gaussian profiles. The convenience of Gaussian propagation helps addressing key challenges in digital holography. In this work, we develop a Gaussian-decomposition-assisted approach to inline holography, for single-shot, simultaneous measurements of absorption and phase-shift profiles of small atomic samples sparsely distributed in 3D. The sample axial positions are resolved with micrometer resolution, and their spectroscopy are extracted from complex-valued images recorded at various probe frequencies. The phase-angle readout is not only robust against transition saturation, but also insensitive to atom-number and optical-pumping-induced interaction-strength fluctuations. Benefiting from such features, we achieve hundred-kHz-level single-shot resolution to the transition frequency of a $^{87}$Rb D2 line, with merely hundreds of atoms. We further demonstrate single-shot 3D field sensing by measuring local light shifts to the atomic array with micrometer spatial resolution.

Related papers

• Super-resolution of ultrafast pulses via spectral inversion [0.0]
  We experimentally demonstrate a spectroscopic super-resolution method aimed at broadband light (10s to 100s of GHz) We study the paradigmatic problem of estimating a small separation between two incoherent spectral features of equal brightness, with a small number of photons per coherence time. The setup is based on an actively stabilized Mach-Zehnder-type interferometer with electro-optic time lenses and passive spectral dispersers implementing the inversion.
  arXiv  Detail & Related papers  (2024-03-18T12:21:37Z)
• High-dimensional quantum correlation measurements with an adaptively gated hybrid single-photon camera [58.720142291102135]
  We propose an adaptively-gated hybrid intensified camera (HIC) that combines a high spatial resolution sensor and a high temporal resolution detector. With a spatial resolution of nearly 9 megapixels and nanosecond temporal resolution, this system allows for the realization of previously infeasible quantum optics experiments.
  arXiv  Detail & Related papers  (2023-05-25T16:59:27Z)
• Digital noise spectroscopy with a quantum sensor [57.53000001488777]
  We introduce and experimentally demonstrate a quantum sensing protocol to sample and reconstruct the auto-correlation of a noise process. Walsh noise spectroscopy method exploits simple sequences of spin-flip pulses to generate a complete basis of digital filters. We experimentally reconstruct the auto-correlation function of the effective magnetic field produced by the nuclear-spin bath on the electronic spin of a single nitrogen-vacancy center in diamond.
  arXiv  Detail & Related papers  (2022-12-19T02:19:35Z)
• Ultraprecise off-axis atom localization with hybrid fields [7.5225293309885455]
  We propose a scheme for realizing two-dimensional off-axis atom localization in a three-level Lambda-type system. Our results provide a more flexible way to localize atoms in a two-dimensional system, possibly paving one-step closer to the nanometer-scale atom lithography and ultraprecise microscopy.
  arXiv  Detail & Related papers  (2022-06-22T11:09:03Z)
• 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)
• Quantum microscopy based on Hong-Ou-Mandel interference [0.9322743017642272]
  Hong-Ou-Mandel (HOM) interference is a staple of quantum optics and lies at the heart of many quantum sensing approaches and recent optical quantum computers. We report a full-field, scan-free, quantum imaging technique that exploits HOM interference to reconstruct the surface depth profile of transparent samples.
  arXiv  Detail & Related papers  (2021-08-11T17:56:37Z)
• Tunable Anderson Localization of Dark States [146.2730735143614]
  We experimentally study Anderson localization in a superconducting waveguide quantum electrodynamics system. We observe an exponential suppression of the transmission coefficient in the vicinity of its subradiant dark modes. The experiment opens the door to the study of various localization phenomena on a new platform.
  arXiv  Detail & Related papers  (2021-05-25T07:52:52Z)
• Full-mode Characterisation of Correlated Photon Pairs Generated in Spontaneous Downconversion [0.0]
  Spontaneous downconversion is the primary source to generate entangled photon pairs in quantum photonics laboratories. We study the full-mode correlation, on a Laguerre-Gauss basis, between photon pairs generated in a type-I crystal. We also explore the effect of a structured pump beam possessing different spatial modes onto bi-photon spatial correlation.
  arXiv  Detail & Related papers  (2021-03-15T20:17:52Z)
• Auto-heterodyne characterization of narrow-band photon pairs [68.8204255655161]
  We describe a technique to measure photon pair joint spectra by detecting the time-correlation beat note when non-degenerate photon pairs interfere at a beamsplitter. The technique is well suited to characterize pairs of photons, each of which can interact with a single atomic species.
  arXiv  Detail & Related papers  (2021-01-08T18:21:30Z)
• Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride [45.39825093917047]
  Single photon emitters (SPEs) in low-dimensional layered materials have recently gained a large interest owing to the auspicious perspectives of integration and extreme miniaturization. Here, we evidence SPEs in high purity synthetic hexagonal boron nitride (hBN) that can be activated by an electron beam at chosen locations. Our findings constitute an essential step towards the realization of top-down integrated devices based on identical quantum emitters in 2D materials.
  arXiv  Detail & Related papers  (2020-11-24T17:20:19Z)
• 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)

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.