Developing Affordable Optical Tweezers to Enhance Research Opportunities and Skills for Students

Increasing interest in advanced computing technologies, such as quantum computing, has amplified the need for a workforce with specialized expertise. One tool used in quantum and other relevant new fields of research and industry is the optical tweezer, a specialized microscope that uses laser beams to trap and manipulate microscopic particles. Many high schools and smaller universities struggle to afford these setups which can cost upwards of $20,000. We aim to improve accessibility with a budget-friendly optical tweezing setup based on the OpenFlexure Project's open-source microscope platform, reducing costs to $3,000-$4,000 while maintaining precision. Our design integrates a laser module and utilizes stepper motor control via a Raspberry Pi, featuring a custom proportional-integral-derivative (PID) controller for the stage to ensure sub-micron positioning accuracy. We are planning on providing documentation of assembly, protocols, control software, and calibration procedures for easy replication. This system retains core microscope functions while adding optical tweezing capabilities, making it ideal for educational and research applications. By offering detailed documentation, we enhance access to this vital technology for high schools and underfunded institutions, preparing young researchers for careers in quantum technologies and other new industries meeting the growing workforce demand.