Results 61 to 70 of about 2,093 (220)

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

open access: yesLaser &Photonics Reviews, EarlyView.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf   +8 more
wiley   +1 more source

Deterministic Nanofabrication of Quantum Dot ‐ Circular Bragg Grating Resonators with High Process Yield Using In Situ Electron Beam Lithography

open access: yesAdvanced Quantum Technologies, EarlyView.
We demonstrate that deterministic in situ electron‐beam lithography enables precise integration of single quantum dots into compact circular Bragg grating resonators, achieving high extraction efficiency with only 3–4 rings. Across 95 devices, the approach delivers >$>$90% alignment yield and bright, narrow‐linewidth single‐photon emission, providing a
Avijit Barua   +7 more
wiley   +1 more source

Cavity Quantum Electrodynamics of Continuously Monitored Bose-Condensed Atoms

open access: yesAtoms, 2015
We study cavity quantum electrodynamics of Bose-condensed atoms that are subjected to continuous monitoring of the light leaking out of the cavity. Due to a given detection record of each stochastic realization, individual runs spontaneously break the ...
Mark D. Lee, Janne Ruostekoski
doaj   +1 more source

Spontaneous emission in micro- or nanophotonic structures

open access: yesPhotoniX, 2021
Single-photon source in micro- or nanoscale is the basic building block of on-chip quantum information and scalable quantum network. Enhanced spontaneous emission based on cavity quantum electrodynamics (CQED) is one of the key principles of realizing ...
Zhiyuan Qian   +6 more
doaj   +1 more source

Quantum Jumps in Amplitude Bistability: Tracking a Coherent and Invertible State Localization

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
A notable asymmetry is shown to characterize the bistable switching between macroscopic metastable states of light in the strong‐coupling limit of radiation–matter interaction. Transitions from the vacuum to a highly excited state correlate with a highly bunched sequence of emitted photons, while a downward switch to the vacuum involves a coherent ...
Th. K. Mavrogordatos
wiley   +1 more source

Mode Interference Effect in Optical Emission of Quantum Dots in Photonic Crystal Cavities

open access: yesPhysical Review X, 2022
Radiation properties of a pointlike source of light, such as a molecule or a semiconductor quantum dot, can be tailored by modifying its photonic environment. This phenomenon lies at the core of cavity quantum electrodynamics (CQED).
A. Lyasota   +8 more
doaj   +1 more source

Strong and Weak Coupling Nanophysics with Free Electron Beams

open access: yesAdvanced Optical Materials, Volume 13, Issue 34, December 2, 2025.
This paper focuses on a short review of the study of the coupling between optical excitations at the nanometer scale, made possible by recent advances in free electron beam spectroscopies. In particular, plasmon–plasmon, plasmon–exciton, and plasmon–phonon couplings are reviewed. Abstract The work of Luis M.
Mathieu Kociak   +6 more
wiley   +1 more source

Protecting coherence by environmental decoherence: a solvable paradigmatic model

open access: yesNew Journal of Physics, 2017
We consider a particularly simple exactly solvable model for a qubit coupled to sequentially nested environments. The purpose is to exemplify the coherence conserving effect of a central system, that has been reported as a result of increasing the ...
Juan Mauricio Torres, Thomas H Seligman
doaj   +1 more source

Hundreds of Nanocoulomb Electron Acceleration Driven by Multipetawatt Laser in Subcritical Density Plasmas

open access: yesAdvanced Photonics Research, Volume 6, Issue 12, December 2025.
Electron acceleration using multipetawatt femtosecond lasers and subcritical density plasmas achieves a maximum charge of 245 nC, with an injection rate of up to 100 nC per picosecond. The charge variation with plasma density, initially increasing and then decreasing, arises from the competition between the injection of multiple plasma waves and laser ...
Xi‐Chen Hu   +9 more
wiley   +1 more source

Collective strong coupling of cold potassium atoms in a ring cavity

open access: yesNew Journal of Physics, 2016
We present experiments on ensemble cavity quantum electrodynamics with cold potassium atoms in a high-finesse ring cavity. Potassium-39 atoms are cooled in a two-dimensional magneto-optical trap and transferred to a three-dimensional trap which ...
R Culver   +7 more
doaj   +1 more source

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