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  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper EH_5_4

Surface Plasmon Mediated Superradiance Generated from Ag Slit Array/InGaAsP at Room Temperature

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Abstract

Superradinace (SR) is a coherent radiation from quantum mechanical many-body systems [1]. When the density of fully inverted atomic light emitters is large enough, the cooperative interaction among strongly correlated light emitters boosts up the radiation process. A strong burst of coherent radiation with a time delay is a clear distinction from the exponentially decaying spontaneous emission of independent many-body systems. Compared to the stimulated emission of laser, the SR is generated from purely incoherent initial states (full population inversion of electrons and null coherent photons). Fluctuating electromagnetic fields resulting from a random distribution of atomic dipole moments with an average value of zero and their reabsorption by the atoms build a phase-locked macroscopic polarization throughout the occupied volume as a source of the SR. The SR has been observed in different kinds of many-body systems [2]. Especially, Bonifacio and Morawitz have postulated that the energy stored in a monolayer of fully excited atomic light emitters can be converted into a superradiant surface plasmon (SP) mode [3].

© 2015 IEEE

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