Meta-optics designed for compact imaging and sensing
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What if bulky lenses and complex optical systems could be replaced by flat, ultrathin optical surfaces—or even redesigned to enable entirely new functionalities? Metasurfaces use engineered subwavelength nanostructures to locally control the phase, amplitude, polarization, and spectral response of light to enable optical functions difficult to achieve with conventional optics. In this talk, Dr. Xingjie Ni will discuss how his group is using simulations while developing metasurface and metalens technologies to create compact, multifunctional optical systems for imaging and sensing.
Dr. Ni’s NanoLight group at Penn State has demonstrated a broad range of meta-optical platforms, from visible-light metasurface holograms and ultrathin planar metalenses to large-aperture metalens telescopes, achromatic metalenses, hyperspectro-polarimetric imaging, and metasurface-enabled chromatic confocal imaging. These examples show how meta-optics can move beyond individual flat lenses toward integrated optical systems that capture richer information, reduce size and complexity, and open new possibilities for biomedical imaging, machine vision, remote sensing, and next-generation photonic devices.
Speaker:
Dr. Xingjie Ni
Professor of Electrical Engineering
The Pennsylvania State University, University Park, PA
Dr. Xingjie Ni is a Professor of Electrical Engineering and the Materials Research Institute at Penn State. His research focuses on nanophotonics, plasmonics, metamaterials, metasurfaces, and meta-optical systems, with applications in imaging, sensing, quantum optics, optoelectronics, and photonic computing. Dr. Ni is a Fellow of Optica and has received the Charles H. Fetter Endowed Faculty Fellowship, Moore Inventor Fellowship, NASA Early Career Faculty Award, Sony Faculty Innovation Award, 3M Non-Tenured Faculty Award, NSF CAREER Award, and Penn State Faculty Scholar Medal. He has published about 50 peer-reviewed journal papers with over 12,000 citations.
