Publications by Year

Citation information can be found on Google scholar page.

* Co-first authors or equal contributing authors.

2025

"Microcavity Kerr optical frequency division with integrated SiN photonics"

Shuman Sun, Mark W. Harrington, Fatemehsadat Tabatabaei, Samin Hanifi, Kaikai Liu, Jiawei Wang, Beichen Wang, Zijiao Yang, Ruxuan Liu, Jesse S. Morgan, Steven M. Bowers, Paul A. Morton, Karl D. Nelson, Andreas Beling, Daniel J. Blumenthal & Xu Yi 

Nature Photonics, 19, 637 (2025).

Full Text.

"Heterogeneous integration of a high-speed photodiode with microcavity solitons for on-chip mmWave generation"

Junyi Gao*, Beichen Wang*, Fatemehsadat Tabatabaei, Ruxuan Liu, Samin Hanifi, Xiangwen Guo, Steven M. Bowers, Xu Yi & Andreas Beling

Optica, 12, 465 (2025)

2024

"Integrated optical frequency division for microwave and mmWave generation"

Shuman Sun*, Beichen Wang*, Kaikai Liu, Mark Harrington, Fatemehsadat Tabatabaei, Ruxuan Liu, Jiawei Wang, Samin Hanifi, Jesse S.  Morgan, Mandana Jahanbozorgi, Zijiao Yang, Steven Bowers, Paul Morton, Karl Nelson, Andreas Beling, Daniel Blumenthal & Xu Yi

Nature, 627, 540 (2024).

2023

"Generation of squeezed quantum microcombs with silicon nitride integrated photonic circuits"

Mandana Jahanbozorgi, Zijiao Yang, Shuman Sun, Haoran Chen, Ruxuan Liu & Xu Yi

Optica, 10, 1100 (2023).

"1550-nm Band Soliton Microcombs in Ytterbium-Doped Lithium-Niobate Microrings"

Chen Yang, Shuo Yang, Fan Du, Xianhong Zeng, Beichen Wang, Zijiao Yang, Qiang Luo, Rui Ma, Ru Zhang, Di Jia, Zhenzhong Hao, Yongnan Li, Qifan Yang, Xu Yi, Fang Bo, Yongfa Kong, Guoquan Zhang, Jingjun Xu

Laser & Photonics Reviews, 2200510 (2023).

2022

"Radio-frequency line-by-line Fourier synthesis based on optical soliton microcombs"

Beichen Wang*, Zijiao Yang*, Shuman Sun & Xu Yi

Photonic Research, 10, 923 (2022). Editor's Pick.

2021

"A squeezed quantum microcomb on a chip"

Zijiao Yang*, Mandana Jahanbozorgi*,  Dongin Jeong, Shuman Sun, Olivier Pfister, Hansuek Lee, and Xu Yi

Nature Communications, 12, 4781 (2021).

"Synthesized soliton crystals"

Zhizhou Lu, Hao-Jing Chen, Weiqiang Wang, Lu Yao, Yang Wang, Yan Yu, B. E. Little, S. T. Chu, Qihuang Gong, Wei Zhao, Xu Yi, Yun-Feng Xiao & Wenfu Zhang

Nature Communications, 12, 3179 (2021).

 

"Towards high-power, high-coherence, integrated photonic mmWave platform with microcavity solitons"

Beichen Wang*, Jesse S. Morgan*, Keye Sun, Mandana Jahanbozorgi, Zijiao Yang, Madison Woodson, Steven Estrella, Andreas Beling, and Xu Yi

Light: Science & Applications, 10, 4 (2021).

2020

"Vernier frequency division with dual-microresonator solitons"

Beichen Wang*, Zijiao Yang*, Xiaobao Zhang, and Xu Yi

Nature Communications, 11, 3975 (2020).

"Chaos-assisted two-octave-spanning microcombs"

Hao-Jing Chen, Qing-Xin Ji, Heming Wang, Qi-Fan Yang, Qi-Tao Cao, Qihuang Gong, Xu Yi, Yun-Feng Xiao

Nature Communications, 11, 2336 (2020).

2019

"Searching for exoplanets using a microresonator astrocomb"

Myoung-Gyun Suh, Xu Yi, Yu-Hung Lai, S. Leifer, Ivan S. Grudinin, G. Vasisht, Emily C. Martin, Michael P. Fitzgerald, G. Doppmann, J. Wang, D. Mawet, Scott B. Papp, Scott A. Diddams, C. Beichman and Kerry Vahala

Nature Photonics, 13, 25 (2019).

2018

"Kerr-microresonator solitons from a chirped background"

Daniel C. Cole, Jordan R. Stone, Miro Erkintalo, Ki Youl Yang, Xu Yi, Kerry J. Vahala, and Scott B. Papp

Optica, 5, 1304 (2018).

 

"Imaging soliton dynamics in optical micro cavities"

Xu Yi*, Qi-Fan Yang*, Ki Youl Yang, and Kerry Vahala

Nature Communications, 9, 3565 (2018).

"Universal isocontours for dissipative Kerr solitons"

Xinbai Li, Boqiang Shen, Heming Wang, Ki Youl Yang, Xu Yi, Qi-Fan Yang, Zhiping Zhou, and Kerry Vahala

Optics Letters, 43, 2567 (2018).

"Micro-Resonator Soliton Generated Directly with a Diode Laser"

Nicolas Volet, Xu Yi, Qi-Fan Yang, Eric J. Stanton, Paul A. Morton, Ki Youl Yang, Kerry J. Vahala, John E. Bowers

Laser & Photonics Reviews (2018).

"Bridging ultrahigh-Q devices and photonic circuits"

Ki Youl Yang*, Dong Yoon Oh*, Seung Hoon Lee*, Qi-Fan Yang, Xu Yi, Boqiang Shen, Heming Wang and Kerry Vahala

Nature Photonics (2018).

2017

Xu Yi, Thesis: "Physics and Applications of Microresonator Solitons and Electro-optic Frequency Combs"

Caltech Library.

"Towards Visible Soliton Microcomb Generation"

Seung Hoon Lee*, Dong Yoon Oh*, Qi-Fan Yang*, Boqiang Shen*, Heming Wang*, Ki Youl Yang, Yu-Hung Lai, Xu Yi, Xinbai Li and Kerry J. Vahala

Nature Communications 8, 1295 (2017)

“Chaos-assisted broadband momentum transformation in optical microresonators”

Xuefeng Jiang*, Linbo Shao*, Shu-Xin Zhang, Xu Yi, Jan Wiersig, Li Wang, Qihuang Gong, Marko Lončar, Lan Yang, Yun-Feng Xiao

Science 358, 344 (2017).

"Counter-propagating solitons in microresonators"

Qi-Fan Yang*, Xu Yi*, Ki Youl Yang, Xinbai Li and Kerry Vahala

Nature Photonics, 11, 560-564 (2017)

 

"Single-mode dispersive waves and soliton microcomb dynamics"

Xu Yi*, Qi-Fan Yang*, Xueyue Zhang*, Ki Youl Yang, Xinbai Li and Kerry Vahala

Nature Communications, 8, 14869 (2017)

 

“Stokes solitons in optical microcavities”

Qi-Fan Yang*, Xu Yi*, Ki Youl Yang and Kerry J. Vahala

Nature Physics, 13, 53–57 (2017)

2016

"Microresonator Soliton Dual-Comb Spectroscopy"

Myoung-Gyun Suh*, Qi-Fan Yang*, Ki Youl Yang, Xu Yi, Kerry Vahala

Science 354 (6312), 600-603 (2016)

 

“Spatial-mode-interaction-induced dispersive-waves and their active tuning in microresonators”

Qi-Fan Yang*, Xu Yi*, Ki Youl Yang and Kerry J. Vahala

Optica, 3, 1132 (2016)

 

“Theory and measurement of the soliton self-frequency shift and efficiency in optical microcavities”

Xu Yi*, Qi-Fan Yang*, Ki Youl Yang and Kerry J. Vahala

Optics Letters, 41 (15) 3419-3422 (2016)

 

“Active capture and stabilization of temporal solitons in microresonators”

Xu Yi*, Qi-Fan Yang*, Ki Youl Yang and Kerry J. Vahala

Optics Letters, 41 (9), 2037-2040 (2016)

 

“Broadband dispersion-engineered microresonator on a chip”

Ki Youl Yang, Katja Beha, Daniel C. Cole, Xu Yi, Pascal Del’Haye, Hansuek Lee, Jiang Li, Dong Yoon Oh, Scott A. Diddams, Scott B. Papp and Kerry J. Vahala

Nature Photonics, 10, 316–320 (2016)

 

“Demonstration of a near-IR line-referenced electro-optical laser frequency comb for precision radial velocity measurements in astronomy”

X. Yi, K. Vahala, S.Diddams, G. Ycas, P. Plavchan, S. Leifer, J. Sandhu, G. Vasisht, P. Chen, P. Gao, J. Gagne, E. Furlan, M. Bottom, E. Martin, M. Fitzgerald, G. Doppmann, C. Beichman

Nature Communications, 7, 10436 (2016)

2015

“Generation of high stability solitons at microwave rates on a silicon chip”

Xu Yi*, Qi-Fan Yang*, Ki Youl Yang*, Myoung-Gyun Suh, Kerry Vahala

Optica, 2 (12), 1078-1085 (2015)

2014

“Electro-optical frequency division and stable microwave synthesis”

Jiang Li*, Xu Yi*, Hansuek Lee, Scott Diddams, Kerry Vahala

Science, 345 (6194), 309-313 (2014)

2013

“Temperature-insensitive detection of low-concentration nanoparticles using a functionalized high-Q microcavity”

Wei-Liang Jin, Xu Yi, Yi-Wen Hu, Bei-Bei Li, Yun-Feng Xiao

Applied Optics, 52 (2), 155-161 (2013)

2012

“Proposal for a near-field optomechanical system with enhanced linear and quadratic coupling”

Hao-Kun Li, Yong-Chun Liu, Xu Yi, Chang-Ling Zou, Xue-Xin Ren, Yun-Feng Xiao

Physical Review A, 85 (5), 053832 (2012)

 

“Mode splitting-based optical label-free biosensing with a biorecognition-covered microcavity”

Xu Yi, Yun-Feng Xiao, Yin Feng, Dong-Yin Qiu, Jing-Yi Fan, Yan Li, Qihuang Gong

Journal of Applied Physics, 111 (11), 114702 (2012)

2011

“Multiple-Rayleighscatterer-induced mode splitting in a high-Q whispering-gallery-mode microresonator”

Xu Yi, Yun-Feng Xiao, Yong-Chun Liu, Bei-Bei Li, Yan Li, Qihuang Gong

Physical Review A, 83, 023803 (2011)

2010

“Polarization-dependent detection of cylinder nanoparticles with mode splitting in a high-Q whispering-gallery microresonator”

Xu Yi, Yun-Feng Xiao, Yan Li, Yong-Chun Liu, Bei-Bei Li, Zhao-Pei Liu, Qihuang Gong

Applied Physics Letters, 97, 203705 (2010)