Local polarization control of optical tweezer arrays

This project builds a dynamic simulation and control system that mimics how local polarization is managed in optical tweezer arrays. It uses spatial light modulators (SLMs) to take advantage of locally adjustable birefringence, allowing each site in the array to rotate its linear polarization independently. The main goal is to design and test closed‑loop feedback controllers that keep the polarization stable despite environmental noise, aiming for stability within a few milliradians. A simulation model tracks how trapped particles move through regions with different polarizations, measuring how many survive and how well their coherence is preserved. The framework also applies process‑control techniques to even out differential light shifts, reproducing the conditions

needed for sideband cooling at the magic angle. By treating the tweezer array as a multi‑input, multi‑output (MIMO) system, the work offers clear steps for modeling SLM dynamics, describing polarization noise, and creating robust feedback loops. The resulting simulation platform is a useful tool for studying the behavior and control limits of advanced optoelectronic processes.

Message: Hi FE, I need help with “Local polarization control of optical tweezer arrays” in “Process Systems / Process Simulation & Control”