Presentation + Paper
1 August 2021 Anharmonic aerosol particle dynamics at Mie resonances in modulated counter-propagating optical tweezers
Oliver R. Reich, Grégory David, Ruth Signorell
Author Affiliations +
Abstract
We analyze the trapping potential of a setup of counter propagating optical tweezers and test the validity of the harmonic approximation in the dimension parallel to the trapping beam axis. While the dynamics of spherical droplets is very well described by a harmonic oscillator, we find that the trapping potential changes drastically for particles at resonance with the trapping laser, at so called Mie resonances. Our findings are discussed with regard to possible origins of this phenomenon.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Oliver R. Reich, Grégory David, and Ruth Signorell "Anharmonic aerosol particle dynamics at Mie resonances in modulated counter-propagating optical tweezers", Proc. SPIE 11798, Optical Trapping and Optical Micromanipulation XVIII, 1179827 (1 August 2021); https://doi.org/10.1117/12.2593583
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KEYWORDS
Particles

Modulation

Atmospheric particles

Polarization

Aerosols

Light scattering

Optical tweezers

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