Results 81 to 90 of about 12,791 (220)
Fast phonon dynamics of a nanomechanical oscillator due to cooperative effects
, 2017 We investigate the coupled-system dynamics of two-level quantum dots placed on a vibrating nanomechanical resonator. The ensemble of quantum dots exhibits superradiance features which are transferred to the mechanical degrees of freedom representing fast
Ceban, Victor +2 more
core +1 more source
Chaotic Regime of Dicke Invertionless Super-Radiance in a High-Q Cavity
EPJ Web of Conferences, 2015 We investigate theoretically different regimes of Dicke superradiance of an ensemble of three-level emitters (L configuration of the operating transitions) placed in a cyclic high-Q cavity.
Ryzhov I.V. +4 more
doaj +1 more source
Mean-Field Description of Cooperative Scattering by Atomic Clouds
Atoms, 2023 We present analytic expressions for the scattering of light by an extended atomic cloud. We obtain the solution for the mean-field excitation of different atomic spherical distributions driven by a uniform laser, including the initial build up, the ...
Nicola Piovella
doaj +1 more source
Bargmann-Wigner Formulation and Superradiance Problem of Bosons and Fermions in Kerr Space-time
, 2015 The superradiance phenomena of massive bosons and fermions in the Kerr spacetime are studied in the Bargmann-Wigner formulation. In case of bi-spinor, the four independent components spinors correspond to the four bosonic freedom: one scalar and three ...
Cho, Y. M., Kenmoku, Masakatsu
core +1 more source
Superradiance and Exciton Delocalization in Perovskite Quantum Dot Superlattices.
Nano letters (Print), 2022 Achieving superradiance in solids is challenging due to fast dephasing processes from inherent disorder and thermal fluctuations. Perovskite quantum dots (QDs) are an exciting class of exciton emitters with large oscillator strength and high quantum ...
Daria D. Blach +9 more
semanticscholar +1 more source
Acoustic superradiance from an optical-superradiance-induced vortex in a Bose-Einstein condensate
, 2014 We consider the simultaneous scattering of an angular momentum carrying Laguerre-Gaussian light beam and an acoustic wave from an atomic Bose-Einstein condensate, under condition of optical superradiance induced vortex state.
Ghazanfari, Nader +1 more
core +2 more sources
Tuning perovskite nanocrystal superlattices for superradiance in the presence of disorder.
Journal of Chemical Physics, 2023 The cooperative emission of interacting nanocrystals is an exciting topic fueled by recent reports of superfluorescence and superradiance in assemblies of perovskite nanocubes.
T. P. T. Nguyen, L. Tan, D. Baranov
semanticscholar +1 more source
Superradiant Raman laser magnetometer [PDF]
Applied Physics Letters, 2012 We demonstrate a proof-of-principle magnetometer that relies on the active oscillation of a cold atom Raman laser to continuously map a field-sensitive atomic phase onto the phase of the radiated light. We demonstrate wideband sensitivity during continuous active oscillation, as well as narrowband sensitivity in passive Ramsey-like mode with ...
Weiner, Joshua M. +4 more
openaire +2 more sources
Advanced Photonics Research, EarlyView.This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida +3 more
wiley +1 more source
Superradiant Ensembles of Terahertz Polaritonic Meta-Atoms
IEEE Photonics Journal, 2020 We experimentally demonstrate the robustness of strong light-matter interaction in an ensemble of terahertz cavities with variable radiation loss. Each cavity in the form of a planar metallic resonator is strongly coupled to intersubband transitions of ...
Moritz Wenclawiak +4 more
doaj +1 more source