Y
Yuntao Xu
Researcher at Yale University
Publications - 47
Citations - 1144
Yuntao Xu is an academic researcher from Yale University. The author has contributed to research in topics: Lithium niobate & Photorefractive effect. The author has an hindex of 12, co-authored 35 publications receiving 583 citations. Previous affiliations of Yuntao Xu include University of Michigan & Tsinghua University.
Papers
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Journal ArticleDOI
Periodically poled thin-film lithium niobate microring resonators with a second-harmonic generation efficiency of 250,000%/W
Juanjuan Lu,Joshua B. Surya,Xianwen Liu,Alexander W. Bruch,Zheng Gong,Yuntao Xu,Hong X. Tang +6 more
TL;DR: In this paper, a dual-resonant, periodically poled z-cut LN microring is proposed for second-harmonic generation (SHG), where quasi-phase matching is realized by field-assisted domain engineering.
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Phononic integrated circuitry and spin-orbit interaction of phonons.
TL;DR: The authors realize a phononic integrated circuit with a Gallium Nitride-on-sapphire platform, which provides strong confinement and control of phonons and opens up the possibility of novel applications such as acoustic gyroscopic and non-reciprocal devices.
Journal ArticleDOI
Periodically poled thin film lithium niobate microring resonators with a second-harmonic generation efficiency of 250,000%/W
Juanjuan Lu,Joshua B. Surya,Xianwen Liu,Alexander W. Bruch,Zheng Gong,Yuntao Xu,Hong X. Tang +6 more
TL;DR: In this paper, a dual-resonant, periodically poled z-cut LN microring was proposed for second-harmonic generation (SHG), where quasi-phase matching was realized by field-assisted domain engineering.
Journal ArticleDOI
Octave-spanning supercontinuum generation in nanoscale lithium niobate waveguides.
TL;DR: The results identify a path to a simple and integrable supercontinuum source in lithium niobate nanophotonic platform and will enable new capabilities in precision frequency metrology.
Journal ArticleDOI
Soliton microcomb generation at 2 μm in z-cut lithium niobate microring resonators.
Zheng Gong,Xianwen Liu,Yuntao Xu,Mingrui Xu,Joshua B. Surya,Juanjuan Lu,Alexander W. Bruch,Chang-Ling Zou,Hong X. Tang +8 more
TL;DR: In this article, the authors demonstrate mode-locked soliton microcombs generated around 2μm in a high-Q z-cut LN microring resonator and find that the intracavity photorefractive effect is still dominant over the thermal effect in the 2-μm region, which facilitates direct accessing soliton states in the red-detuned regime.