Issue 4, 2024

Light-driven nanomotors with reciprocating motion and high controllability based on interference techniques

Abstract

In this paper, we investigate the controlled movement of optically trapped nano-particles in an interference optical lattice. The suggested interferometric optical tweezers setup utilizes the superposition of three orthogonal Gaussian standing waves to create 3D optical lattices. Dynamic control over the constructed lattices can be achieved simply by changing the incident beam parameters using a polarizer or a phase shifter. The trapping properties of the generated optical lattices for a dielectric Rayleigh particle are numerically evaluated using a MATLAB program. The simulation results showed that the generated lattices can be translated by altering the relative phase between the interfering beams. More complex transformations and geometries can be achieved by changing other properties of the interfering beams such as the polarization state. This simple setup enables the construction of a rich variety of dynamic optical lattices and offers promising applications in colloidal and biological science such as controlling the diffusion of colloidal particles and stretching or compressing tethered polymeric molecules. This interferometric method can also be used in light-driven nanomotors with high controllability.

Graphical abstract: Light-driven nanomotors with reciprocating motion and high controllability based on interference techniques

Supplementary files

Article information

Article type
Paper
Submitted
23 Aug. 2023
Accepted
29 Dec. 2023
First published
29 Dec. 2023
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2024,6, 1122-1126

Light-driven nanomotors with reciprocating motion and high controllability based on interference techniques

M. Mohammadnezhad, S. R. Saeed, S. S. Abdulkareem and A. Hassanzadeh, Nanoscale Adv., 2024, 6, 1122 DOI: 10.1039/D3NA00678F

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