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Title: Controlling spontaneous emission in photonic-band-gap materials doped with nanoparticles

Abstract

The phenomenon of spontaneous emission cancellation has been investigated in photonic-band-gap materials in the presence of dipole-dipole interaction. The material is densely doped with an ensemble of five-level nanoparticles. The mean field theory is used to calculate the effect of the dipole-dipole interaction whereas the linear response theory is used to calculate the expressions for the real and imaginary susceptibilities. Numerical simulations are performed for an isotropic photonic-band-gap material. Interesting results are predicted such as the control of the spontaneous emission cancellation by moving the resonance energies between the energy band and energy gap. It is also found that the photonic-band-gap material can be switched between absorptive and nonabsorptive states by changing the strength of the dipole-dipole interaction and the resonance energies in the energy band.

Authors:
 [1]
  1. Department of Physics and Astronomy, University of Western Ontario, London N6A 3K7 (Canada)
Publication Date:
OSTI Identifier:
20982401
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.75.033810; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DIPOLES; DOPED MATERIALS; EMISSION; ENERGY GAP; INTERACTIONS; MEAN-FIELD THEORY; NANOSTRUCTURES; RESONANCE; SIMULATION

Citation Formats

Singh, Mahi R. Controlling spontaneous emission in photonic-band-gap materials doped with nanoparticles. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.033810.
Singh, Mahi R. Controlling spontaneous emission in photonic-band-gap materials doped with nanoparticles. United States. doi:10.1103/PHYSREVA.75.033810.
Singh, Mahi R. Thu . "Controlling spontaneous emission in photonic-band-gap materials doped with nanoparticles". United States. doi:10.1103/PHYSREVA.75.033810.
@article{osti_20982401,
title = {Controlling spontaneous emission in photonic-band-gap materials doped with nanoparticles},
author = {Singh, Mahi R.},
abstractNote = {The phenomenon of spontaneous emission cancellation has been investigated in photonic-band-gap materials in the presence of dipole-dipole interaction. The material is densely doped with an ensemble of five-level nanoparticles. The mean field theory is used to calculate the effect of the dipole-dipole interaction whereas the linear response theory is used to calculate the expressions for the real and imaginary susceptibilities. Numerical simulations are performed for an isotropic photonic-band-gap material. Interesting results are predicted such as the control of the spontaneous emission cancellation by moving the resonance energies between the energy band and energy gap. It is also found that the photonic-band-gap material can be switched between absorptive and nonabsorptive states by changing the strength of the dipole-dipole interaction and the resonance energies in the energy band.},
doi = {10.1103/PHYSREVA.75.033810},
journal = {Physical Review. A},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}