292 citations · 1.7k across the 17 of their papers we have counts for
18 papers
Ultrahigh- on-chip silicon-germanium microresonators
Ryan Schilling, Chi Xiong, Swetha Kamlapurkar +7
We demonstrate fully crystalline, single-mode ultrahigh quality factor integrated microresonators comprising epitaxially grown SiGe waveguide cores with silicon c…
A monolithic 56 Gb/s silicon photonic pulse-amplitude modulation transmitter
Chi Xiong, Douglas M. Gill, Jonathan E. Proesel +3
Silicon photonics promises to address the challenges for next-generation short-reach optical interconnects. Growing bandwidth demand in hyper-scale data centers and high-performanc…
Adiabatic embedment of nanomechanical resonators in photonic microring cavities
Chi Xiong, Wolfram Pernice, Mo Li +2
We report a circuit cavity optomechanical system in which a nanomechanical resonator is adiabatically embedded inside an optical ring resonator with ultralow transition loss. The n…
Active silicon integrated nanophotonics: ferroelectric BaTiO3 devices
Chi Xiong, Wolfram H. P. Pernice, Joseph H. Ngai +5
The integration of complex oxides on silicon presents opportunities to extend and enhance silicon technology with novel electronic, magnetic, and photonic properties. Among these m…
High performance nanophotonic circuits based on partially buried horizontal slot waveguides
Chi Xiong, Wolfram H. P. Pernice, Mo Li +1
We present a novel platform to construct high-performance nanophotonic devices in low refractive index dielectric films at telecoms wavelengths. The formation of horizontal slots b…
Integrated GaN photonic circuits on silicon (100) for second harmonic generation
Chi Xiong, Wolfram Pernice, Kevin K. Ryu +4
We demonstrate second order optical nonlinearity in a silicon architecture through heterogeneous integration of single-crystalline gallium nitride (GaN) on silicon (100) substrates…