2024

• 4 Sep 2024
  Our paper on etchless Dion-Jacobson-phase perovskite surface-emitting circular Bragg lasers is accepted for publication in ACS Photonics.
• 29 Aug 2024
  We warmly welcome postdoctoral researcher Dr. Huiqi Li from Shandong University.
• 21 Aug 2024
  We warmly welcome postdoctoral researcher Dr. Peng Lei from Peking University.
• 16 Aug 2024
  Fan Ye successfully defends her Ph.D. thesis.
• 1 Aug 2024
  We warmly welcome postgraduate students Hechong Chen and Yuanzhe Sun from South China Normal University and Nanjing University of Posts and Telecommunications, respectively.
• 1 Aug 2024
  Prof. Sun is promoted to Professor.
• 27 Jun 2024
  Prof. Sun receives RGC GRF funding and CUHK Direct Grant for Research.
• 21 Jun 2024
  Our paper on symmetry-protected bound states in the continuum on an integrated photonic platform is accepted for publication in Nanophotonics.
• 6 May 2024
  Our paper on topological parametric phonon oscillator is accepted for publication in Advanced Materials.
• 23 Apr 2024
  Prof. Daoxin Dai from Zhejiang University visits us and gives an invited talk titled "Multimode silicon photonics."
• 2 Apr 2024
  Our paper on surface acoustic microwave photonic filters on etchless lithium niobate integrated platform is published in Laser & Photonics Reviews.
• 4 Mar 2024
  Our work on Dirac-vortex topological lasers is featured by Light: Science & Applications. See News & Views: "Topological Dirac-vortex microcavity laser for robust on-chip optoelectronics" by Yuanpeng Wu and Zetian Mi.

2023

• 12 Dec 2023
  Prof. Xiao-Song Ma from Nanjing University visits us and gives an invited talk titled "Quantum storage of entangled photons at telecom wavelengths in a crystal."
• 23 Nov 2023
  Our work on Dirac-vortex topological lasers is featured by Laser Focus World.
• 15 Nov 2023
  Prof. Carsten Schuck from University of Munster visits us and gives an invited talk titled "Integrating single-photon sources, circuits and detectors on quantum photonic chips."
• 10 Nov 2023
  Prof. Sun receives funding from NSFC/RGC Joint Research Scheme.
• 24 Oct 2023
  Our paper on room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon is published in Light: Science & Applications.
• 10 Oct 2023
  Our invited tutorial on etchless photonic integrated circuits enabled by bound states in the continuum is published in Journal of the Optical Society of America B.
• 3 Aug 2023
  Prof. Jian-Hua Jiang from University of Science and Technology of China visits us and gives an invited talk titled "Unveiling topological phenomena at defects using metamaterials."
• 1 Aug 2023
  We warmly welcome postgraduate students Li Zeng and Yuxin Dong from Nanjing University of Posts and Telecommunications and South China University of Technology, respectively. We warmly welcome visiting scholar Prof. Qijing Lu from Fujian Normal University.
• 26 Jul 2023
  Prof. Sun is selected for the CUHK Young Researcher Award 2022.
• 19 Jul 2023
  Yuan Li successfully defends his Ph.D. thesis.
• 11 Jul 2023
  Prof. Sun is selected for the fellowship award under the RGC Research Fellow Scheme 2023/24.
• 27 Jun 2023
  Our paper on gigahertz phononic integrated circuits based on overlay slot waveguides is published in Physical Review Applied.
• 20 Jun 2023
  Prof. Jiawei Wang from Harbin Institute of Technology (Shenzhen) visits us and gives an invited talk titled "3D whispering gallery mode optical microcavities: from new physics to emerging applications."
• 20 Jun 2023
  Ziyao Feng successfully defends his Ph.D. thesis.
• 12 Jun 2023
  Yue Yu successfully defends her Ph.D. thesis.
• 15 May 2023
  Our paper on experimental observation of dissipatively coupled bound states in the continuum on an integrated photonic platform is published in Laser & Photonics Reviews.
• 17 Apr 2023
  Prof. Boon S. Ooi and his team from King Abdullah University of Science and Technology visit us and give invited talks.
• 21 Feb 2023
  Yue Yu receives the 2022 EE Department's Postgraduate Student Research Excellence Awards and the Best Presentation Award.
• 20 Feb 2023
  Prof. Jian Wang and his team from Huazhong University of Science and Technology visit us and introduce their research.
• 25 Jan 2023
  Our review article on 2D-materials-integrated optoelectromechanics is published in Reports on Progress in Physics.
• 19 Jan 2023
  Our paper on inverse-designed linear coherent photonic networks for high-resolution spectral reconstruction is published in ACS Photonics and featured as a cover article.

2022

• 28 Dec 2022
  Our paper on dynamically encircling an exceptional point in an anti-PT-symmetric integrated photonic system is published in Physical Review Letters.
• 20 Nov 2022
  Our paper on realization of bound states in the continuum in anti-PT-symmetric optical systems is published in Laser & Photonics Reviews.
• 18 Nov 2022
  Our paper on observation of mechanical bound states in the continuum in an optomechanical microresonator is published in Light: Science & Applications.
• 31 Oct 2022
  Our paper on highly tunable broadband coherent wavelength conversion with a fiber-based optomechanical system is published in Advanced Photonics and featured as a cover article.
• 26 Sep 2022
  Our paper on wavelength-division multiplexing on an etchless lithium niobate integrated platform is published in ACS Photonics.
• 1 Sep 2022
  Prof. Sun starts to serve Optica as an Associate Editor.
• 26 Aug 2022
  Our group alumnus Dr. Jingwen Ma receives the CUHK Postgraduate Research Output Award 2021.
• 1 Aug 2022
  We warmly welcome postgraduate student Jianfeng He from South China Normal University.
• 8 Jul 2022
  Our paper on Hofstadter butterfly and topological edge states in a quasiperiodic photonic crystal cavity array is published in Optics Express.
• 15 Jun 2022
  Our group alumnus Dr. Jingwen Ma receives the Faculty Outstanding PhD Thesis Award 2021.
• 16 Feb 2022
  Our group alumnus Jiawei Zhang secures an offer from Princeton University for postgraduate studies.
• 21 Jan 2022
  Prof. Sun receives funding for research collaboration from Office of Academic Links, CUHK.
• 18 Jan 2022
  Our paper on second-harmonic generation in etchless lithium niobate nanophotonic waveguides with bound states in the continuum is published in Laser & Photonics Reviews.
• 12 Jan 2022
  Our paper on anisotropic Dirac cone and slow edge states in a photonic Floquet lattice is published in Physical Review B.
• 4 Jan 2022
  Prof. Sun receives RGC CRF funding as a Project Coordinator.

2021

• 18 Dec 2021
  Yue Yu receives the Best Paper Award (First Runner Up) at the 21st IEEE Photonics Society (Hong Kong Chapter) Postgraduate Conference 2021.
• 3 Dec 2021
  Prof. Sun starts to serve Journal of Lightwave Technology as an Associate Editor.
• 4 Nov 2021
  Our paper on experimental investigation of the angular symmetry of optical force in a solid dielectric is published in Optica.
• 24 Sep 2021
  Our paper on demonstration of on-chip gigahertz acousto-optic modulation at near-visible wavelengths is published in Nanophotonics.
• 24 Aug 2021
  Jingwen Ma successfully defends his Ph.D. thesis.
• 20 Aug 2021
  Our paper on ultralow-loss etchless lithium niobate integrated photonics at near-visible wavelengths is published in Advanced Optical Materials.
• 4 Aug 2021
  We warmly welcome research assistant Jiawei Zhang from Nankai University.
• 1 Aug 2021
  Prof. Sun is appointed as Associate Director, Center of Optical Sciences.
• 30 Jun 2021
  Prof. Sun receives RGC GRF funding.
• 4 May 2021
  Xiang Xi successfully defends his Ph.D. thesis.
• 19 Apr 2021
  Our paper on nanomechanical topological insulators with an auxiliary orbital degree of freedom is published in Nature Nanotechnology. It is featured in News & Views: "Topological vortices for sound and light" by Penglin Gao and Johan Christensen.
• 26 Feb 2021
  Our paper on gigahertz acousto-optic modulation and frequency shifting on etchless lithium niobate integrated platform is published in ACS Photonics.
• 4 Feb 2021
  Our paper on experimental demonstration of dual-band nanoelectromechanical valley-Hall topological metamaterials is published in Advanced Materials.
• 6 Jan 2021
  Our paper on observation of chiral edge states in gapped nanomechanical graphene is published in Science Advances.

2020

• 6 Nov 2020
  Our paper on inverse-designed photonic jumpers with ultracompact size and ultralow loss is published in Journal of Lightwave Technology.
• 4 Nov 2020
  Our paper on nonmetallic broadband visible-light absorbers with polarization and incident angle insensitivity is published in IEEE Photonics Journal.
• 1 Sep 2020
  Our group alumnus Dr. Zejie Yu starts his new position as a Professor in College of Optical Science and Engineering at Zhejiang University.
• 1 Aug 2020
  Prof. Sun is promoted to Associate Professor with tenure.
• 29 May 2020
  Our paper on giant enhancement of rotation sensing with PT-symmetric circular Bragg lasers is published in Physical Review Applied.
• 25 May 2020
  Our paper on high-dimensional communication with photonic bound states in the continuum is published in Nature Communications.
• 29 Apr 2020
  Our paper on graphene-assisted electro-optomechanical integration on a silicon-on-insulator platform is published in Optics Express.
• 1 Jan 2020
  Our paper on acousto-optic modulation of photonic bound state in the continuum is published in Light: Science & Applications. See media release by Phys.org and EurekAlert!.

2019

• 4 Dec 2019
  Our invited paper on optically controlled topologically protected acoustic wave amplification is published in IEEE Journal of Selected Topics in Quantum Electronics.
• 21 Nov 2019
  Our paper on giant enhancement of nonlinear optical processes with split-ring resonators is published in IEEE Photonics Technology Letters.
• 1 Nov 2019
  Prof. Joyce Poon from University of Toronto visits us and gives an invited talk titled "Light, communications, and computing."
• 31 Oct 2019
  Our paper on topological photonic integrated circuits based on valley kink states is published in Laser & Photonics Reviews and featured as a cover article.
• 23 Oct 2019
  Our paper on hybrid 2D-material photonics with bound states in the continuum is published in Advanced Optical Materials.
• 10 Oct 2019
  Our paper on photonic integrated circuits with bound states in the continuum is published in Optica.
• 5 Aug 2019
  Zejie Yu successfully defends his Ph.D. thesis.
• 1 Aug 2019
  We warmly welcome postgraduate student Long Jin from Huazhong University of Science and Technology.
• 28 Jun 2019
  Prof. Sun receives RGC GRF funding.
• 23 May 2019
  Our paper on carrier-mediated cavity optomechanics in a semiconductor laser is published in Physical Review A.
• 11 Apr 2019
  Our group alumnus Aosong Feng secures an offer from Yale University for postgraduate studies.
• 1 Feb 2019
  We warmly welcome visiting scholar Prof. Mingzeng Peng from University of Science and Technology Beijing.

2018

• 19 Dec 2018
  Our paper on inverse-designed polarization-insensitive silicon waveguide crossing is published in Optics Letters and selected as an Editor's Pick.
• 18 Dec 2018
  Prof. Linran Fan from University of Arizona visits us and gives an invited talk titled "Quantum photon conversion with integrated nonlinear photonics."
• 15 Oct 2018
  Our paper on ultranarrow-band metagrating absorbers is published in Optics Express.
• 29 Sep 2018
  Our paper on photonic welding points is published in Nanophotonics.
• 15 Aug 2018
  Our paper on proposing parity-time-symmetric mechanical systems by the cavity optomechanical effect is published in Optics Letters.
• 1 Aug 2018
  Prof. Qiaoqiang Gan from University at Buffalo visits us and gives an invited talk titled "Extreme light-matter interaction."
• 1 Aug 2018
  We warmly welcome postgraduate student Fan Ye from Nanjing University.
• 27 Jul 2018
  Prof. Ya Sha Yi from University of Michigan visits us and gives an invited talk titled "Integrated subwavelength all-dielectric gratings/metasurfaces."
• 29 Jun 2018
  Prof. Sun receives RGC GRF funding.
• 12 Jun 2018
  Prof. Sun starts to serve Scientific Reports as an Editorial Board Member.
• 10 Apr 2018
  Our paper on circular Bragg lasers with radial PT symmetry is published in Photonics Research.
• 31 Jan 2018
  Prof. Sun presents an invited talk titled "Recent progress in nano-optomechanical devices at microwave frequencies" at SPIE Photonics West in San Francisco, California, USA.
• 17 Jan 2018
  Prof. Qiang Lin from University of Rochester visits us and gives an invited talk titled "Nonlinear micro-/nano-photonic devices and applications."
• 12 Jan 2018
  Our paper on giant enhancement of stimulated Brillouin scattering with phoxonic crystal waveguides is published in Optics Express.

2017

• 5 Oct 2017
  Our paper on a proposal and experimental demonstration of on-chip reflectors with the smallest footprint on a thin-film-on-insulator platform is published in Photonics Research.
• 5 Aug 2017
  Our paper on experimental realization of a wideband on-chip polarization rotator with an ultrasmall footprint is published in Optics Letters.
• 1 Aug 2017
  Yue Yu and Ziyao Feng start their new status as postgraduate students in our group.
• 30 Jun 2017
  Prof. Sun receives RGC GRF funding.

2016

• 8 Dec 2016
  We warmly welcome research assistant Ziyao Feng from Huazhong University of Science and Technology.
• 5 Dec 2016
  We warmly welcome research assistant Dong Xiao from Shenzhen University.
• 1 Dec 2016
  Our work "Hybrid Graphene/Silicon Integrated Optical Isolators" is selected by Optics & Photonics News (OPN), The Optical Society's monthly news magazine, as one of the world's 30 most clearly communicated breakthroughs in optics in 2016.
• 29 Nov 2016
  We warmly welcome research assistant Yue Yu from Huazhong University of Science and Technology.
• 28 Nov 2016
  We publish two papers in Scientific Reports: one on designing ultraviolet optomechanical crystal cavities and the other on proposing parity-time-symmetric circular Bragg lasers.
• 17 Aug 2016
  Prof. Sun starts to serve Optics Express as an Associate Editor.
• 4 Aug 2016
  Prof. Lai Wang from Tsinghua University visits us and gives a talk.
• 1 Aug 2016
  Jingwen Ma and Yuan Li start their new status as postgraduate students in our group.
• 19 Apr 2016
  Our paper on a proposal of hybrid graphene/silicon integrated optical isolator published in Applied Physics Letters is featured as a cover article and selected as an Editor's Pick.
• 24-25 Feb 2016
  Chinese Academy of Sciences Academician Prof. Shining Zhu from Nanjing University visits us and gives an invited talk titled "On-chip photonics and optoelectronics."

2015

• 28 Dec 2015
  Prof. Hong Tang from Yale visits us and gives an invited talk titled "Hybrid silicon photonic circuits for chip-scale nonlinear and quantum optics."
• 16 Dec 2015
  We warmly welcome research assistant Yuan Li from Southeast University.
• 19 Nov 2015
  Prof. Kerry Vahala from Caltech visits us and gives an invited talk titled "Soliton frequency microcombs."
• 30 Oct 2015
  Prof. Sun receives funding from NSFC/RGC Joint Research Scheme.
• 15 Oct 2015
  Prof. Sun receives the RGC Early Career Award 2015/16. See the news coverage by Faculty of Engineering and Department of Electronic Engineering, CUHK.
• 15 Oct 2015
  We warmly welcome research assistant Jiahua Gu from South China Normal University.
• 25 Aug 2015
  We warmly welcome research assistant Jingwen Ma from Huazhong University of Science and Technology.
• 1 Aug 2015
  We warmly welcome postgraduate students Xiang Xi and Zejie Yu from Huazhong University of Science and Technology and Zhejiang University, respectively.
• 30 Jun 2015
  Prof. Sun receives RGC ECS funding.
• 31 Mar 2015
  Prof. Sun receives funding from Shun Hing Institute of Advanced Engineering, CUHK.

2014

• 27 Nov 2014
  Prof. Sun receives CUHK Direct Grant for Research.