https://doi.org/10.1140/epjp/s13360-020-01057-5
Regular Article
T-matrix calculations of spin-dependent optical forces in optically trapped nanowires
1
Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università degli Studi di Messina, 98166, Messina, Italy
2
CNR-IPCF, Istituto per i Processi Chimico-Fisici, 98158, Messina, Italy
3
CNR-IMM, Istituto per la Microelettronica e Microsistemi, 40129, Bologna, Italy
4
Akademie věd České republiky, Ústav přístrojové techniky, 612 64, Brno, Czech Republic
Received:
16
October
2020
Accepted:
26
December
2020
Published online:
16
January
2021
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.
Focus Point on Light Pressure across All Scales. Guest editors: A. Macchi, O. M. Maragò.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
