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Plasmonic particles set into fast orbital motion by an optical vortex beam WARI SC, 1992, JOURNAL OF MODERN OPTICS, V39, P1097

Anni Lehmuskero (Institutionen för teknisk fysik, Bionanofotonik) ; Y. M. Li ; Peter Johansson (Institutionen för teknisk fysik, Bionanofotonik) ; Mikael Käll (Institutionen för teknisk fysik, Bionanofotonik)
Optics Express (1094-4087). Vol. 22 (2014), 4, p. 4349-4356.
[Artikel, refereegranskad vetenskaplig]

We optically trap plasmonic gold particles in two dimensions and set them into circular motion around the optical axis using a helically phased vortex laser beam. The orbiting frequency of the particles reaches 86 Hz, which corresponds to a particle velocity of the order 1 mm per second, for an incident laser power of a few tens of milliwatts. The experimentally determined orbiting frequencies are found to be well in line with the notion that the beam carries an orbital angular momentum of hl per photon. (C) 2014 Optical Society of America

Nyckelord: ANGULAR-MOMENTUM, METAL NANOPARTICLES, LIGHT-BEAM, DRIVEN, ROTATION, PHASE



Denna post skapades 2014-04-16. Senast ändrad 2014-08-19.
CPL Pubid: 196820

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Bionanofotonik (2007-2015)

Ämnesområden

Optik
Optisk fysik

Chalmers infrastruktur