Title of Presentation or Performance

Low-cost Optical Tweezers Based On Aberration Correction

Presenter and Advisor Information

Man Luo, Illinois Wesleyan UniversityFollow

Type of Submission (Archival)

Synchronous Poster

Area of Study or Work

Physics

Faculty Advisor

Gabe Spalding

Expected Graduation Date

2023

Start Date

4-11-2021 2:00 PM

End Date

4-11-2021 3:00 PM

Abstract

Optical tweezers utilize strong gradients in light fields to manipulate and interrogate the micro-world. However, optical aberrations can all too easily render the technique impossible (“washing out” the strong gradients required). So very expensive (aberration corrected) high-power lenses are normally utilized. The goal of this project is to develop methods allowing utilization of extremely inexpensive disposable lenses, fabricated from a suspended droplet of transparent silicone rubber. While such lenses are likely to suffer from significant aberration of the optical field, corrections are possible by integration of a reflective liquid crystal device called a Spatial Light Modulator (SLM). While serving as Beta Testers for a Python software development kit (SDK) for the SLM, we aim to develop a generic algorithm that can optimize an optical tweezers systems quickly and efficiently, each time a new disposable is introduced.

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Apr 11th, 2:00 PM Apr 11th, 3:00 PM

Low-cost Optical Tweezers Based On Aberration Correction

Optical tweezers utilize strong gradients in light fields to manipulate and interrogate the micro-world. However, optical aberrations can all too easily render the technique impossible (“washing out” the strong gradients required). So very expensive (aberration corrected) high-power lenses are normally utilized. The goal of this project is to develop methods allowing utilization of extremely inexpensive disposable lenses, fabricated from a suspended droplet of transparent silicone rubber. While such lenses are likely to suffer from significant aberration of the optical field, corrections are possible by integration of a reflective liquid crystal device called a Spatial Light Modulator (SLM). While serving as Beta Testers for a Python software development kit (SDK) for the SLM, we aim to develop a generic algorithm that can optimize an optical tweezers systems quickly and efficiently, each time a new disposable is introduced.