Comparing classical electrodynamic theories through simulations of optical deformation of droplets

Kenneth J. Chau; Cael Warner; Ying Y. Tsui

doi:10.1117/12.2682183

5 October 2023 Comparing classical electrodynamic theories through simulations of optical deformation of droplets

Kenneth J. Chau, Cael Warner, Ying Y. Tsui

Proceedings Volume 12649, Optical Trapping and Optical Micromanipulation XX; 126490C (2023) https://doi.org/10.1117/12.2682183
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

The optically driven mechanics of a 2.17 μm-diameter water droplet subjected to a linearly-polarized, zeroth-order, tightly-focused, continuous-wave, 532 nm wavelength, Hermite-Gaussian laser beam are simulated in the Kirchoff-Fresnel diffraction region. Coupled electrodynamic and weighted orthogonal multi-relaxation kinetic lattice-Boltzmann methods evaluate Maxwell and Navier-Stokes equations, and a central-difference analysis at each location in space and instant in time evaluates the momentum continuity postulated by seven electrodynamic formalisms. Morphology of the 2.17 μm diameter water droplet is unique for each electrodynamic formalism, electric field polarization, focal displacement, and beam divergence of the incident Hermite-Gaussian beam. Unique droplet morphology predicted by each electrodynamic formalism in a focused Hermite-Gaussian beam also results in distinct electromagnetic mode confinement and scattering patterns measurable from the far field. Therefore, an electrodynamic theory may be experimentally deduced from the irradiance, polarization, and phase of the far-field angular light scattering patterns when compared against numerical analysis and standard near-to- far field transformation. Probing water droplets in the Kirchoff-Fresnel diffraction region may experimentally disprove long-standing electrodynamic theories, or suggest an appropriate electrodynamic theory for predicting the nonlinear deformation of light-scattering droplets.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kenneth J. Chau, Cael Warner, and Ying Y. Tsui "Comparing classical electrodynamic theories through simulations of optical deformation of droplets", Proc. SPIE 12649, Optical Trapping and Optical Micromanipulation XX, 126490C (5 October 2023); https://doi.org/10.1117/12.2682183

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available