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Guangyao Liu
Researcher at University of California, Davis
Publications - 20
Citations - 324
Guangyao Liu is an academic researcher from University of California, Davis. The author has contributed to research in topics: Photonic integrated circuit & Silicon nitride. The author has an hindex of 8, co-authored 20 publications receiving 243 citations.
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Journal ArticleDOI
Low-loss compact multilayer silicon nitride platform for 3D photonic integrated circuits.
TL;DR: The designed platform, with 200 nm thick waveguide core and 700 nm interlayer gap, is compatible for active thermal tuning and applicable to realizing compact photonic devices such as arrayed waveguide gratings (AWGs).
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Interferometric imaging using Si 3 N 4 photonic integrated circuits for a SPIDER imager
Tiehui Su,Guangyao Liu,Badham Katherine Emily,Samuel T. Thurman,Richard L. Kendrick,Alan L. Duncan,Danielle M. R. Wuchenich,Chad Ogden,Guy Chriqui,Shaoqi Feng,Jaeyi Chun,Weicheng Lai,S.J.B. Yoo +12 more
TL;DR: The design, fabrication, and experimental demonstration of a silicon nitride photonic integrated circuit (PIC) capable of conducting one-dimensional interferometric imaging with twelve baselines near λ = 1100-1600 nm is reported.
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Uniform emission, constant wavevector silicon grating surface emitter for beam steering with ultra-sharp instantaneous field-of-view.
TL;DR: A custom grating with varying Si3N4 width and duty cycle while maintaining a uniform propagation constant for relatively narrow divergence emission pattern for beam steering application with ultra-sharp instantaneous field-of-view (IFOV).
Journal ArticleDOI
Low-loss prism-waveguide optical coupling for ultrahigh-Q low-index monolithic resonators
Guangyao Liu,Vladimir S. Ilchenko,Tiehui Su,Yi-Chun Ling,Shaoqi Feng,Kuanping Shang,Yu Zhang,Wei Liang,Anatoliy A. Savchenkov,Andrey B. Matsko,Lute Maleki,S. J. Ben Yoo +11 more
TL;DR: In this article, a single-mode waveguide structure (prism-waveguide coupler) integrated on a low-loss compact silicon nitride platform is presented, achieving phase-matched and mode-matched evanescent wave coupling.
Journal ArticleDOI
Silicon nitride tri-layer vertical Y-junction and 3D couplers with arbitrary splitting ratio for photonic integrated circuits
TL;DR: A tri-layer Si3N4/SiO2 photonic integrated circuit capable of vertical interlayer coupling with arbitrary splitting ratios and the 1 × 3 3D couplers with the splitting ratio of 1:1:4 for symmetric structures and variable splitting ratio for asymmetric structures is designed and demonstrated.