Title of Presentation

Low-cost Optical Tweezers Based On Aberration Correction

Type of Submission

Synchronous Poster

Research Field

Physics

Faculty Advisor

Gabe Spalding

Graduation Year

2023

Start Date

11-4-2021 2:00 PM

End Date

11-4-2021 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.