Advancing Towards Large-Scale Meta-Optics

Abstract
Metasurfaces, artificially engineered ultrathin subwavelength nanostructures with exceptional light control capabilities, have the potential to revolutionize conventional optics. In the past, our group has demonstrated a variety of novel metasurface devices, from invisibility cloaks to space-time-modulated one-way mirrors. However, the traditional methods for creating these metasurfaces are slow, expensive, and lack scalability. To address this, we have developed a cost-effective and scalable design and fabrication method for large-scale meta-optic devices that work in both the visible and infrared regimes. We showcase several examples, including a single-lens telescope using a wafer-scale metalens, inch-scale meta-optic correctors, and a metasurface-enabled real-time hyperspectro-polarizmetry camera. Our technology facilitates versatile light control in scalable, compact, multifunctional flat optics devices with significant potential for real-world applications.

Biography
Dr. Xingjie Ni is an Associate Professor of Electrical Engineering and Materials Research Institute at Penn State. He completed his Ph.D. degree in Electrical and Computer Engineering at Purdue University in 2012, and his BS and MS degrees at Tsinghua University. Dr. Ni’s research focuses on nanophotonics, plasmonics, and metamaterials/metasurfaces. He has made significant contributions to the development of metasurfaces and has published over 40 peer-reviewed papers with approximately 10000 citations. Dr. Ni 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, and the National Science Foundation CAREER award.