T-matrix calculations of spin-dependent optical forces in optically trapped nanowires

0549665 - ÚPT 2022 RIV DE eng J - Journal Article
Polimeno, P. - Iatì, M. A. - Degli Esposti Boschi, C. - Simpson, Stephen Hugh - Svak, Vojtěch - Brzobohatý, Oto - Zemánek, Pavel - Maragò, O. M. - Saija, R.
T-matrix calculations of spin-dependent optical forces in optically trapped nanowires.
European Physical Journal Plus. Roč. 136, č. 1 (2021), č. článku 86. ISSN 2190-5444. E-ISSN 2190-5444
R&D Projects: GA ČR(CZ) GA19-17765S
Institutional support: RVO:68081731
Keywords : nonspherical particles * radiation force * scattering * light momentum * optical spin * non-conservative force
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.758, year: 2021
Method of publishing: Limited access
https://link.springer.com/article/10.1140/epjp/s13360-020-01057-5

We present computational results associated with the onset of a spin-dependent optical force component occurring on zinc oxide nanowires trapped in optical tweezers with circularly polarized light. This type of non-conservative force appears directed perpendicularly with respect to the propagation direction of the incident light on the nanowires both for plane wave illumination and for optical tweezers. We show how this transverse optical force component is also shape dependent and connected with the imaginary part of the local Poynting vector and the local spin density.
Permanent Link: http://hdl.handle.net/11104/0325633