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Title: Near-field heat transfer between gold nanoparticle arrays

The radiative heat transfer between gold nanoparticle layers is presented using the coupled dipole method. Gold nanoparticles are modelled as effective electric and magnetic dipoles interacting via electromagnetic fluctuations. The effect of higher-order multipoles is implemented in the expression of electric polarizability to calculate the interactions at short distances. Our findings show that the near-field radiation reduces as the radius of the nanoparticles is increased. Also, the magnetic dipole contribution to the heat exchange becomes more important for larger particles. When one layer is displayed in parallel with respect to the other layer, the near-field heat transfer exhibits oscillatory-like features due to the influence of the individual nanostructures. Further details about the effect of the nanoparticles size are also discussed.
Authors:
 [1] ;  [2] ;  [3] ;  [1]
  1. Department of Physics, University of South Florida, Tampa, Florida 33620 (United States)
  2. (Viet Nam)
  3. Department of Physics, Chungbuk National University, Cheongju 361-763 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22258710
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 114; Journal Issue: 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FLUCTUATIONS; GOLD; HEAT; HEAT TRANSFER; LAYERS; MAGNETIC DIPOLES; NANOSTRUCTURES; PARTICLES; POLARIZABILITY