Results 71 to 80 of about 414 (119)

Controlling excitation localization in waveguide QED systems

open access: yesPhysical Review Research
We theoretically investigate excitation dynamics in one-dimensional arrays of quantum emitters coupled to a waveguide, focusing on localization and long-time population trapping. By combining time-domain simulations with spectral analysis of an effective
C.-Y. Lee   +3 more
doaj   +1 more source

Super- and subradiance in a dilute cloud of cold atoms

open access: yes, 2018
Le problème de l'interaction de N atomes avec un faisceau laser et les modes du vide peut donner lieu à de nombreux phénomènes intéressants concernant l’émission spontanée de la lumière et sa propagation dans l’échantillon.
Oliveira de Araujo, Michelle
core  

Long-lived collective modes of light in cold atoms : experimental and numerical studies on subradiance and Anderson localization

open access: yes, 2022
L'objectif de cette thèse est d'élargir notre compréhension des phénomènes collectifs de diffusion de la lumière qui se manifestent par la forte suppression du rayonnement du milieu diffusant.
Cipris, Ana
core  

Decay dynamics in the coupled-dipole model

open access: yes, 2017
Cooperative scattering in cold atoms has gained renewed interest, in particular in the context of single-photon superradiance, with the recent experimental observation of super-and subradiance in dilute atomic clouds.
Kaiser, Robin   +2 more
core   +1 more source

Efficient excitation transfer in an LH2-inspired nanoscale stacked ring geometry

open access: yesNew Journal of Physics
Ring geometries of subwavelength-spaced quantum emitters exhibit outstanding radiation properties and are useful for antennas, excitation transport, and storage.
Arpita Pal   +3 more
doaj   +1 more source

Gold, Platinum, and Aluminum Nanodisk Plasmons: Material Independence, Subradiance, and Damping Mechanisms

open access: yes, 2011
Localized surface plasmon resonances (LSPR) are collective electronic excitations in metallic nanoparticles. The LSPR spectral peak position, as a function of nanoparticle size and material, is known to depend primarily on dynamic depolarization and ...
Christoph Langhammer   +13 more
core   +1 more source

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