Temporal Fourier Optics Reveals Hidden Hybridized Light-Matter States

• URL: http://arxiv.org/abs/2607.13957v2
• Date: Wed, 22 Jul 2026 08:09:57 GMT
• Title: Temporal Fourier Optics Reveals Hidden Hybridized Light-Matter States
• Abstract summary: temporal point-spread function (TPSF) reconstructs the underlying spectral response from experimentally measured spectra.<n>TPSF consistently resolves hidden upper and lower polaritonic branches, revealing hybridized light-matter states.
• Score: 3.171438203009816
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Spectral measurements provide fundamental insights into wave systems by revealing resonances, mode hybridization, and light-matter interactions. However, intrinsic dissipation and measurement-related spectral broadening often obscure the spectral signatures of the underlying hybridized light-matter states. Here, we establish a temporal Fourier optics framework based on a space-time Fourier correspondence, which interprets spectral broadening as the Fourier counterpart of temporal attenuation. This perspective introduces a temporal point-spread function (TPSF) that enables direct, synthesis-free reconstruction of the underlying spectral response from experimentally measured spectra by compensating for effective temporal decay before transformation back to the frequency domain. We experimentally validate the framework using deterministic single-molecule Au nanosphere dimers and open Au@Ag nanorod- and nanotriangle-based plasmonic nanocavities coupled to J-aggregate excitons. Across these distinct platforms, TPSF consistently resolves hidden upper and lower polaritonic branches, revealing hybridized light-matter states and strong coupling that remain inaccessible in conventional scattering spectra. The reconstructed spectra agree closely with the recently developed complex-frequency formalism while providing a substantially simpler and experimentally accessible implementation. More broadly, temporal Fourier optics establishes a general framework for recovering dissipation-obscured spectral information, opening new opportunities for spectroscopy, imaging, sensing, and inverse wave measurements across photonics and wave physics.

Related papers

• Phy-CoSF: Physics-Guided Continuous Spectral Fields Reconstruction and Super-Resolution for Snapshot Compressive Imaging [79.35520607451187]
  We propose Phy-CoSF, which synergizes deep unfolding networks with implicit neural representations.<n>Specifically, we propose a two-phase architecture that bridges discrete-wavelength training with continuous spectral rendering.
  arXiv  Detail & Related papers  (2026-05-13T14:17:02Z)
• Observation of Universal Spectral Moments and the Dynamic Dispersive-to-Proliferative Transition [22.500854615463314]
  spectral moments provide boundary-robust bulk observables in finite non-Hermitian lattices.<n>We show that local bulk dynamics can remain stable (dispersive) even in a $mathcalPT$-broken spectral regime.<n>These results establish spectral moments as practical bulk descriptors for finite non-Hermitian matter.
  arXiv  Detail & Related papers  (2026-04-30T08:38:46Z)
• Investigating Spectral Dynamics and Spin Signatures of a Mechanically Isolated Quantum Emitter in hBN [70.39382957795658]
  Mechanically isolated defect centers in hexagonal boron nitride are promising coherent quantum emitters.<n>We investigate a single mechanically isolated quantum emitter in hBN integrated onto a coplanar waveguide.
  arXiv  Detail & Related papers  (2026-04-16T13:24:11Z)
• Spectroscopic readout of chiral photonic topology in a single-cavity spin-orbit-coupled Bose-Einstein condensate [0.0]
  We present a framework for spectroscopic readout of chiral photonic topology in a single driven optical cavity.<n>In the loss-dominated regime, where cavity decay exceeds atomic dissipation, the power spectral density exhibits Dirac-like gapped hybrid modes.<n>The complex spectrum reveals parity-time symmetric coalescences and gain-loss bifurcations, marking exceptional points.
  arXiv  Detail & Related papers  (2025-12-09T14:50:13Z)
• Spectral truncation of out-of-time-ordered correlators in dissipative system [44.99833362998488]
  Out-of-time-ordered correlators (OTOCs) have emerged as powerful tools for diagnosing quantum chaos and information scrambling.<n>We investigate the spectral decomposition of OTOCs in open quantum systems using the dissipative modified kicked rotator (DMKR) as a paradigmatic model.<n>Our results provide a quantitative framework for understanding OTOCs in dissipative quantum systems and suggest new avenues for experimental exploration in open quantum platforms.
  arXiv  Detail & Related papers  (2025-03-05T17:22:25Z)
• Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry [45.73541813564926]
  We study the interplay of the quantum center-of-mass $-$ that can become delocalized $-$ together with the internal clock transitions. We show at the example of a Gaussian laser beam that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields.
  arXiv  Detail & Related papers  (2023-09-25T18:00:03Z)
• Unraveling Time- and Frequency-Resolved Nuclear Resonant Scattering Spectra [0.0]
  M"ossbauer nuclei form a promising platform for quantum optics, spectroscopy and dynamics at energies of hard x-rays. We develop spectroscopy and analysis techniques for time- and frequency-resolved Nuclear Resonant Scattering spectra.
  arXiv  Detail & Related papers  (2022-10-18T13:31:12Z)
• 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)
• On using classical light in Quantum Optical Coherence Tomography [0.0]
  Quantum Optical Coherence Tomography provides an increased axial resolution and is immune to even orders of dispersion. In this work, we investigate the use of this spectral approach in which quantum interference is obtained with classical low-intensity light pulses.
  arXiv  Detail & Related papers  (2021-03-27T18:58:59Z)
• Probing excited-state dynamics with quantum entangled photons: Correspondence to coherent multidimensional spectroscopy [0.0]
  Quantum light is a key resource for promoting quantum technology. One such class of technology aims to improve the precision of optical measurements using engineered quantum states of light.
  arXiv  Detail & Related papers  (2020-05-22T03:22:44Z)
• Spectrally reconfigurable quantum emitters enabled by optimized fast modulation [42.39394379814941]
  Spectral control in solid state platforms such as color centers, rare earth ions, and quantum dots is attractive for realizing such applications on-chip. We propose the use of frequency-modulated optical transitions for spectral engineering of single photon emission. Our results suggest that frequency modulation is a powerful technique for the generation of new light states with unprecedented control over the spectral and temporal properties of single photons.
  arXiv  Detail & Related papers  (2020-03-27T18:24:35Z)

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.