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Xingchen Ji

Columbia University

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Publication

Featured researches published by Xingchen Ji.

european quantum electronics conference | 2017

Large effective χ (2) nonlinearity on a Si 3 N 4 -chip

Sven Ramelow; Alessandro Farsi; Stéphane Clemmen; Xingchen Ji; Michal Lipson; Alexander L. Gaeta

Using coherent photon conversion (CPC) we generate large effective X<sup>(2)</sup> nonlinearities in a X<sup>(3)</sup>-nonlinear Si<inf>3</inf>N<inf>4</inf> microring-resonator and measure an effective second harmonic generation efficiency of 77%/mW.

conference on lasers and electro optics | 2016

High quality factor Si 3 N 4 ring resonators achieved by surface roughness reduction

Xingchen Ji; Felippe A. S. Barbosa; Alex Bryant; Jaime Cardenas; Samantha P. Roberts; Michal Lipson

We demonstrate high-confinement Si3N4 ring resonators with a quality factor of 15.6 million. We show that ultra-high quality factors are achievable by using a process that addresses surface roughness on all interfaces of the waveguides.

conference on lasers and electro optics | 2017

Broadband frequency comb generation in the near-visible using higher-order modes in silicon nitride microresonators

Prathamesh S. Donvalkar; Felippe A. S. Barbosa; Xingchen Ji; Yoshitomo Okawachi; Rees Mcnally; Alessandro Farsi; Alexander Klenner; Michal Lipson; Alexander L. Gaeta

conference on lasers and electro optics | 2018

Characterization of Ultra-High-Q Si3N4 Micro-Ring Resonators with High-Precision Temperature Control

Paul Kaufmann; Xingchen Ji; Kevin Luke; Michal Lipson; Sven Ramelow

conference on lasers and electro optics | 2018

Chip-Based Frequency Combs for High-Resolution Optical Coherence Tomography

Xingchen Ji; Alexander Klenner; Xinwen Yao; Yu Gan; Alexander L. Gaeta; Christine P. Hendon; Michal Lipson

conference on lasers and electro optics | 2018

512-Element Actively Steered Silicon Phased Array for Low-Power LIDAR

Steven A. Miller; Christopher T. Phare; You-Chia Chang; Xingchen Ji; Oscar A. Jimenez Gordillo; Aseema Mohanty; Samantha P. Roberts; Min Chul Shin; Brian Stern; Moshe Zadka; Michal Lipson

conference on lasers and electro optics | 2018

An Active Visible Nanophotonics Platform for Sub-Millisecond Deep Brain Neural Stimulation

Aseema Mohanty; Qian Li; Mohammad Amin Tadayon; Gaurang R. Bhatt; Euijae Shim; Xingchen Ji; Jaime Cardenas; Steven A. Miller; Adam Kepecs; Michal Lipson

conference on lasers and electro optics | 2017

Coherent supercontinuum generation with picosecond pulses

Adrea R. Johnson; Xingchen Ji; Michael R. E. Lamont; Yoshitomo Okawachi; Michal Lipson; Alexander L. Gaeta

conference on lasers and electro optics | 2017

High confinement and low loss Si 3 N 4 waveguides for miniaturizing optical coherence tomography

Xingchen Ji; Xinwen Yao; Mohammad Amin Tadayon; Aseema Mohanty; Christine P. Hendon; Michal Lipson

conference on lasers and electro optics | 2017

Large effective χ (2) nonlinearity via coherent photon conversion on a Si 3 N 4 chip

Alessandro Farsi; Sven Ramelow; Stéphane Clemmen; Xingchen Ji; Michal Lipson; Alexander L. Gaeta

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Michal Lipson

Columbia University

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Alexander L. Gaeta

Columbia University

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Alessandro Farsi

Columbia University

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Aseema Mohanty

Columbia University

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Felippe A. S. Barbosa

Columbia University

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Jaime Cardenas

Columbia University

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Samantha P. Roberts

Cornell University

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Sven Ramelow

Cornell University

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Alex Bryant

Georgia Institute of Technology

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Christine P. Hendon

Columbia University

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