Quantum molecular dynamics to model surface phonon polaritons nanoparticles resonances in the THz regime
DIPC Seminars
- Speaker
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Prof. Jean-Jacques Greffet, Institut d'Optique Graduate School, Institut Universitaire de France, Palaiseau, France
- When
-
2010/04/23
14:00 - Place
- Donostia International Physics Center (DIPC).Paseo Manuel de Lardizabal, 4 (nearby the Facultad de Quimica), Donostia
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Abstract:
I will discuss several isues related to the dynamics of surface phonon
polaritons. In the first part of the talk, I will analyse the resonances of
ZnO nanoparticles in the THz regime. A molecular dynamics approach will be
used to study resonances of the particle. This will allow to analyse the
origin of non-local effects.
The second part of the talk will deal with the introduction of quantum effects
in molecular dynamics[1]. It has been taken for granted that molecular
dynamics can only be applied in the framework of the classical approximation.
We will discuss how quantum statistical effects can be included in a standard
molecular dynamics approach.
Finally, I will present recent results related to the measurement of radiative
heat transfer in the near-field [2].
1\. Quantum thermal bath for molecular dynamics simulation, H. Dammak, Y.
Chalopin, M. Laroche, M. Hayoun, J.J. Greffet, Phys.Rev.Lett. *103*, 190601
(2009)
2\. Radiative heat transfer at the nanoscale, E. Rousseau, A. Siria, G.
Jourdan, S. Volz, F. Comin, J. Chevrier and J.J. Greffet, Nature Photonics
*3*, p 514 (2009)