730 citations · 1.5k across the 9 of their papers we have counts for
9 papers
Magnet-free nonreciprocal metasurface for on-demand bi-directional phase modulation
Weihao Yang, Jun Qin, Jiawei Long +8
Unconstrained by Lorentz reciprocity, nonreciprocal metasurfaces are uniquely capable of encoding distinctive optical functions on forward- and backward-propagating waves. The nonr…
Free-form micro-optics enabling ultra-broadband low-loss fiber-to-chip coupling
Shaoliang Yu, Luigi Ranno, Qingyang Du +5
Efficient fiber-to-chip coupling has been a major hurdle to cost-effective packaging and scalable interconnections of photonic integrated circuits. Conventional photonic packaging…
Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials
Carlos Ríos, Qingyang Du, Yifei Zhang +9
Energy-efficient programmable photonic integrated circuits (PICs) are the cornerstone of on-chip classical and quantum optical technologies. Optical phase shifters constitute the f…
Magneto-Optical Properties of InSb for Infrared Spectral Filtering
Nolan Peard, Dennis Callahan, Joy C. Perkinson +7
We present measurements of the Faraday effect in n-type InSb. The Verdet coefficient was determined for a range of carrier concentrations near in the …
Reconfigurable all-dielectric metalens with diffraction limited performance
Mikhail Y. Shalaginov, Sensong An, Yifei Zhang +15
Active metasurfaces, whose optical properties can be modulated post-fabrication, have emerged as an intensively explored field in recent years. The efforts to date, however, still…
Monolithic integration of broadband optical isolators for polarization-diverse silicon photonics
Yan Zhang, Qingyang Du, Chuangtang Wang +9
Integrated optical isolators have been a longstanding challenge for photonic integrated circuits (PIC). An ideal integrated optical isolator for PIC should be made by a monolithic…
Extreme Broadband Transparent Optical Phase Change Materials for High-Performance Nonvolatile Photonics
Yifei Zhang, Jeffrey B. Chou, Junying Li +18
Optical phase change materials (O-PCMs), a unique group of materials featuring drastic optical property contrast upon solid-state phase transition, have found widespread adoption i…
Ultra-thin, High-efficiency Mid-Infrared Transmissive Huygens Meta-Optics
Hanyu Zheng, Jun Ding, Li Zhang +12
The mid-infrared (mid-IR) is a strategically important band for numerous applications ranging from night vision to biochemical sensing. Unlike visible or near-infrared optical part…
High-Performance, High-Index-Contrast Chalcogenide Glass Photonics on Silicon and Unconventional Non-planar Substrates
Yi Zou, Danning Zhang, Hongtao Lin +11
This paper reports a versatile, roll-to-roll and backend compatible technique for the fabrication of high-index-contrast photonic structures on both silicon and plastic substrates.…