Potsdam University Potsdam Quantum Optics Group

Universität Potsdam
Institut für Physik
Karl-Liebknecht-Str. 24/25
14476 Potsdam-Golm
Potsdam Quantum Optics Group: Home

Potsdam Quantum Optics Group: Teaching

Potsdam Quantum Optics Group: Research

Potsdam Quantum Optics Group: How to find us









 

       
 Publications
 2002
   henkel02a
 
C. Henkel, K. Joulain, J. P. Mulet, and J. J. Greffet
Radiation forces on small particles in thermal near fields
J. Opt. A: Pure Appl. Opt. 4 (2002) S109-14, proceedings of the EOS Topical Meeting ``Electromagnetic Optics'' (Paris 26-30 august 2001).

Abstract

    We study the optical forces due to the radiation of a thermal source. Our model consists of a particle modelled by a dipole above a half-space at temperature T. The fluctuating fields are computed using the Lifshitz model. We find two contributions to the force: a repulsive ``wind'' component and a dispersive force mainly due to the contribution of thermally excited surface waves. It is found that for SiC material, the latter is repulsive in the very near field. The usual van der Waals force is larger by a factor of approximately ten for submicron size particles.

[ electronic journal ]

file generated: 5 Jun 2008


   
   
printer-friendly version
   
   
Webmaster