Unified Simulation Platform for Optical Tweezers and Optofluidic Force Induction

Area of Science:

• Physics
• Nanotechnology
• Optics

Background:

• Optical tweezers use focused laser beams to trap particles.
• Optofluidic force induction (OF2i) uses weakly focused beams for particle trapping and propulsion, aiding nanoparticle characterization.
• Accurate simulation of particle behavior under optical and fluidic forces is crucial for these techniques.

Purpose of the Study:

• To present a unified simulation approach for nanoparticles subjected to fluidic and optical forces.
• To develop a versatile simulation tool applicable to both optical tweezers and OF2i.
• To demonstrate the simulation's capability through practical examples.

Main Methods:

• Development of a unified simulation framework for particle dynamics.
• Integration of fluidic and optical force models.
• Implementation as an add-on to the NANOBEM Maxwell solver, utilizing a boundary element method (BEM).

Main Results:

• Successful demonstration of the simulation's working principle across selected examples.
• Validation of the unified approach for simulating nanoparticle behavior in OF2i and optical tweezers.
• Provision of accessible simulation software for researchers.

Conclusions:

• The developed unified simulation approach accurately models nanoparticle behavior under combined forces.
• This tool enhances the study and application of optical tweezers and OF2i for nanoparticle analysis.
• The readily available software facilitates advancements in single-particle characterization techniques.