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1 August 2021 MOSH-DDA: Meta-surface optical trapping and guiding of spherical nanoparticles
Michael O'Donnell, Simon Hanna
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Proceedings Volume 11798, Optical Trapping and Optical Micromanipulation XVIII; 117981N (2021) https://doi.org/10.1117/12.2594017
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
In this paper, the use of a 2D meta-surface for the optical trapping and directed movement of spherical nanoparticles is explored. Using the Discrete Dipole Approximation, we calculate the optical forces that occur when a spherical nanoparticle moves across a surface constructed of tessellated equilateral triangles. We calculate that given sufficient optical power, choice of optical materials, and wavelengths, it is possible to use a meta-surface to guide micron sized particles in a direction dictated by the geometry of the surface. Furthermore, we suggest several experimental methods of verifying the results which are also discussed in detail.
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Michael O'Donnell and Simon Hanna "MOSH-DDA: Meta-surface optical trapping and guiding of spherical nanoparticles", Proc. SPIE 11798, Optical Trapping and Optical Micromanipulation XVIII, 117981N (1 August 2021); https://doi.org/10.1117/12.2594017
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KEYWORDS
Nanoparticles
Spherical lenses
Optical tweezers
Particles
Scattering
Americium
Optical spheres
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