At Columbia, Freddie works in Professor Nanfang Yu’s group. His research spans meta-optics, nanofabrication, computational imaging, and biomedical optical systems.
Freddie’s work focuses on turning optical concepts into complete experimental systems. He works across device layout, fabrication, characterization, system integration, troubleshooting, and final demonstration, with particular strength in bridging the gap between theoretical designs and reliable physical implementations.
His projects include metasurface-enabled neural fluorescence imaging, polarization-based optical encoding for depth reconstruction, and large-scale, densely packed optical tweezer arrays for atomic physics. This work has involved developing a reliable TiO₂ metasurface fabrication process for ultrathin glass substrates, building robust calibration and alignment methods, and improving optimization algorithms for large-area and near-diffraction-limited optical systems.
In collaborative projects, Freddie connects ideas from different fields, turns them into executable system architectures, builds early prototypes, and drives experimental validation. He is interested in translating advanced optical technologies into scalable systems, particularly for biomedical and computational imaging.
