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Title: Purcell effect at the percolation transition

Abstract

Here, we investigate the spontaneous emission rate of a two-level quantum emitter next to a composite medium made of randomly distributed metallic inclusions embedded in a dielectric host matrix. In the near field, the Purcell factor can be enhanced by two orders of magnitude relative to the case of a homogeneous metallic medium and reaches its maximum precisely at the insulator-metal transition. By unveiling the role of the decay pathways in the emitter's lifetime, we demonstrate that, close to the percolation threshold, the radiation emission process is dictated by electromagnetic absorption in the heterogeneous medium. We show that our findings are robust against change in material properties and shape of inclusions and apply for different effective-medium theories as well as for a wide range of transition frequencies.

Authors:
 [1];  [2];  [1];  [1];  [1]
  1. Univ. Federal do Rio de Janeiro, Rio de Janeiro (Brazil)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1331285
Report Number(s):
LA-UR-16-23696
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 94; Journal Issue: 13; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Energy Sciences; Material Science

Citation Formats

Szilard, Daniela, Kort-Kamp, Wilton Junior de Melo, Rosa, Felipe S. S., Pinheiro, Felipe A., and Farina, Carlos. Purcell effect at the percolation transition. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.94.134204.
Szilard, Daniela, Kort-Kamp, Wilton Junior de Melo, Rosa, Felipe S. S., Pinheiro, Felipe A., & Farina, Carlos. Purcell effect at the percolation transition. United States. https://doi.org/10.1103/PhysRevB.94.134204
Szilard, Daniela, Kort-Kamp, Wilton Junior de Melo, Rosa, Felipe S. S., Pinheiro, Felipe A., and Farina, Carlos. Sat . "Purcell effect at the percolation transition". United States. https://doi.org/10.1103/PhysRevB.94.134204. https://www.osti.gov/servlets/purl/1331285.
@article{osti_1331285,
title = {Purcell effect at the percolation transition},
author = {Szilard, Daniela and Kort-Kamp, Wilton Junior de Melo and Rosa, Felipe S. S. and Pinheiro, Felipe A. and Farina, Carlos},
abstractNote = {Here, we investigate the spontaneous emission rate of a two-level quantum emitter next to a composite medium made of randomly distributed metallic inclusions embedded in a dielectric host matrix. In the near field, the Purcell factor can be enhanced by two orders of magnitude relative to the case of a homogeneous metallic medium and reaches its maximum precisely at the insulator-metal transition. By unveiling the role of the decay pathways in the emitter's lifetime, we demonstrate that, close to the percolation threshold, the radiation emission process is dictated by electromagnetic absorption in the heterogeneous medium. We show that our findings are robust against change in material properties and shape of inclusions and apply for different effective-medium theories as well as for a wide range of transition frequencies.},
doi = {10.1103/PhysRevB.94.134204},
journal = {Physical Review B},
number = 13,
volume = 94,
place = {United States},
year = {Sat Oct 01 00:00:00 EDT 2016},
month = {Sat Oct 01 00:00:00 EDT 2016}
}

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Cited by: 14 works
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Works referencing / citing this record:

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Controlling spontaneous emission via electronic correlations and temperature in transparent oxides
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