Bulletin of the Russian Academy of Sciences Physics

Superradiance in media with a near-zero refractive index

А. А. Калачев, Olga A. Kocharovskaya

Published Mar 1, 2012• 1 citation

Abstract

The dependence of the efficiency of collective spontaneous emission in a spherical medium on the modulus of a complex refractive index approaching zero and on the ordering of optical centers is studied.

DOI: 10.3103/s1062873812030136

Related papers

Collective spontaneous emission in a waveguide with a near-zero refractive index

Alexey Tiranov, А. А. Калачев

The optimum conditions for observing superradiance and subradiance effects in an ensemble of two-level atoms, placed in a waveguide cladding with a metamaterial with near-zero refractive index, are discussed.

Bulletin of the Russian Academy of Sciences PhysicsMar 1, 20141 citation

Quantum emission of light by medium with time-dependent refractive index

V. Hizhnyakov, Helle Kaasik

Zero-point quantum fluctuations in a medium with oscillation of optical length in time cause spontaneous two-quantum emission of light. This emission is usually very weak, but it strongly enhanced if a resonance condition for frequency and amplitude of the oscillation is fulfilled.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEJun 15, 20071 citation

Dependence of the spontaneous emission rates of emitters on the refractive index of the surrounding media

Chang‐Kui Duan, Michael F. Reid

arXiv:physics/0505166Journal of Alloys and CompoundsJan 7, 200620 citations

Analysis of spontaneous emission from a planar microcavity—dependence on the refractive index of the cavity region and atomic location

Naoto Koide, Kikuo Ujihara

Optics CommunicationsOct 1, 199411 citations

Optical superradiance on cooperative transitions in metamaterials

D. D. Vlasova, А. А. Калачев

The possibility of observing collective spontaneous emission upon a cooperative transition in an ensemble of interacting optical center pairs embedded in a metamaterial is investigated. It is shown that when the effective refractive index tends to zero, the relaxation rate of excited atomic states substantially decreases, allowing us to observe collective effects on weaker cooperative transitions.

Bulletin of the Russian Academy of Sciences PhysicsMar 1, 20121 citation

Modification of spontaneous emission rate in planar dielectric microcavities – seen as superradiance and subradiance

Magnus Höijer, Gunnar G. Bjork

Optics CommunicationsMay 1, 19983 citations