Higher-order Poincaré Spheres and Spatio-Spectral Poincaré Beams

• URL: http://arxiv.org/abs/2406.06750v1
• Date: Mon, 10 Jun 2024 19:27:54 GMT
• Title: Higher-order Poincaré Spheres and Spatio-Spectral Poincaré Beams
• Authors: Robert Fickler, Lea Kopf, Marco Ornigotti,
• Abstract summary: We introduce a visual representation of light structured in its transverse space, frequency, and polarization in the form of a higher-order Poincar'e sphere. We further leverage this connection to discuss and experimentally generate light possessing all possible polarization states across its-spectral shape. Our work can pave the way for a deeper understanding and beneficial application of structured light as a powerful tool in optics.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The study of fundamental optics effects has been stimulated through the increasing ability to structure light in all its degrees of freedom (DOFs) in sophisticated but simple experimental settings. However, with such an increase in experimental capabilities, it has also become important to study theoretical descriptions for a more intuitive understanding of the underlying concepts. Here, we introduce a visual representation of light that is structured in its transverse space, frequency, and polarization in the form of a higher-order Poincar\'e sphere and discuss interesting links to its fundamental counterpart. We further leverage this connection to discuss and experimentally generate light possessing all possible polarization states across its spatio-spectral shape, which we term spatio-spectral Poincar\'e beams. By invoking all DOFs of light in the powerful description of higher-order Poincar\'e spheres, our work can pave the way for a deeper understanding and beneficial application of structured light as a powerful tool in optics.

Related papers

• Chiral quantum optics: recent developments, and future directions [0.0]
  Chiral quantum optics is a growing field of research where light-matter interactions become asymmetrically dependent on momentum and spin. Recent platforms for investigating chiral light-matter interactions have expanded from laser-cooled atoms and quantum dots to various solid-state systems.
  arXiv  Detail & Related papers  (2024-11-10T15:28:37Z)
• LLM and Simulation as Bilevel Optimizers: A New Paradigm to Advance Physical Scientific Discovery [141.39722070734737]
  We propose to enhance the knowledge-driven, abstract reasoning abilities of Large Language Models with the computational strength of simulations. We introduce Scientific Generative Agent (SGA), a bilevel optimization framework. We conduct experiments to demonstrate our framework's efficacy in law discovery and molecular design.
  arXiv  Detail & Related papers  (2024-05-16T03:04:10Z)
• Correlating space, wavelength, and polarization of light: Spatio-Spectral Vector Beams [0.0]
  Correlating polarization with the light's spatial or spectral shape results in so-called spatial or spectral vector beams. We extend the general idea of vector beams by combining both approaches and structuring a novel state of light in three non-separable DoF's.
  arXiv  Detail & Related papers  (2023-07-06T13:05:00Z)
• Collective excitation and decay of waveguide-coupled atoms: from timed Dicke states to inverted ensembles [0.0]
  We study the collective absorption and emission of light by an ensemble of atoms using an optical nanofiber. We realize strong inversion, with about 80% of the atoms being excited, and study their subsequent radiative decay into the guided modes. Our results contribute to the fundamental understanding of the collective interaction of light and matter.
  arXiv  Detail & Related papers  (2022-04-08T14:53:46Z)
• Optical excitations of Skyrmions, knotted solitons, and defects in atoms [0.0]
  We show how simple structured light beams can be transformed into optical excitations of atoms with considerably more complex topologies. This construction can also be described in terms of linked Hopf maps, analogous to knotted solitons of the Skyrme-Faddeev model. While we prepare simpler two-dimensional baby-Skyrmions and singular defects using the traditional Stokes vectors on the Poincar'e sphere for light, particle-like topologies can only be achieved in the full optical hypersphere description.
  arXiv  Detail & Related papers  (2021-09-28T11:35:40Z)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Conceptual Design Report for the LUXE Experiment [116.47875392913599]
  We will reach this hitherto inaccessible regime of quantum physics by analysing high-energy electron-photon and photon-photon interactions. The high photon flux predicted will enable a sensitive search for new physics beyond the Standard Model.
  arXiv  Detail & Related papers  (2021-02-03T12:27:10Z)
• 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)
• Machine learning-based classification of vector vortex beams [48.7576911714538]
  We show a new, flexible experimental approach to the classification of vortex vector beams. We first describe a platform for generating arbitrary complex vector vortex beams inspired to photonic quantum walks. We then exploit recent machine learning methods to recognize and classify specific polarization patterns.
  arXiv  Detail & Related papers  (2020-05-16T10:58:49Z)
• Integrated Structured Light Architectures [4.027878855696664]
  versatility of light underpins outstanding optical phenomena where both geometrical and topological states of light dictate how matter will respond or display. Light possesses multiple degrees of freedom such as amplitude, linear spin, angular, and orbital angular momenta. We describe a foundational demonstration that examines a laser architecture offering integrated structural field control and programmability.
  arXiv  Detail & Related papers  (2020-03-31T17:47:32Z)
• Theoretical methods for ultrastrong light-matter interactions [91.3755431537592]
  This article reviews theoretical methods developed to understand cavity quantum electrodynamics in the ultrastrong-coupling regime. The article gives a broad overview of the recent progress, ranging from analytical estimate of ground-state properties to proper computation of master equations. Most of the article is devoted to effective models, relevant for the various experimental platforms in which the ultrastrong coupling has been reached.
  arXiv  Detail & Related papers  (2020-01-23T18:09:10Z)

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.