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Prof. Kebin Shi delivered a speech during the PRI Research Seminar Series

The PRI Research Seminar was successfully held today, covering the topic of” High Resolution Optical Imaging Enabled by Field Engineering - from Physics to Engineering”. The PRI Research Seminar was graced by the presence of Prof. Kebin Shi, Professor of Institute of Modern Optics, School of Physics, Peking University National Bioimaging Center at Peking University, shared his valuable experience and insight with the participants.   Prof. Shi’s research focuses on developing high resolution photonic systems and devices based on ultrafast/nonlinear optical principles for spectroscopy, imaging and applications.   We would like to extend our gratitude to Prof. Shi for his invaluable contribution to the seminar and our sincere appreciation to all the participants who attended the seminar.

恭喜黃冬梅博士榮獲2024年理大青年創新研究者獎(YIRA)

光子技術研究院成員黃冬梅博士獲選為 2024年理大青年創新研究者獎 (YIRA) 得獎者之一。   理大YIRA評審委員從 53 份提名中選出了 6 名 YIRA 獲獎者。   理大青年創新研究者獎(YIRA)旨在表揚35歲以下的年輕理大研究人員，他們對技術進步做出了貢獻，並推動科研進步，將其轉化為解決社會問題的方案，以期對未來產生積極的改變。   我們藉此機會祝賀黃博士!    得獎者 學系 職銜 研究重點 黃冬梅博士 電機及電子工程學系 助理教授 高性能掃頻雷射器及其應用                                                     

Prof. Junle Qu and Prof. Tymish Y. Ohulchanskyy delivered a speech during the PRI Research Seminar Series (只有英文版本)

The PRI Research Seminar was successfully held last week. Prof. Junle Qu, Chair Professor and the Director of the Center for Biomedical Photonics at Shenzhen University, and Prof. Tymish Y. Ohulchanskyy, Distinguished Professor of the College of Physics and Optoelectronic Engineering at Shenzhen University, shared their valuable experience and insight with the participants.   Covering the topic “Super-Resolution Optical Imaging: In Vivo, In Situ, and Multicolor” for Prof. Qu and “Near Infrared Phototheranostics Using Biocompatible Nanoformulations” for Prof. Ohulchanskyy, we would like to extend our gratitude to Prof. Qu and Prof. Ohulchanskyy for their invaluable contribution to the seminar and our sincere appreciation to all the participants who attended the seminar.

魏敏晨教授榮獲2023年度香港工程科技獎

香港工程科學院宣佈魏敏晨教授 (建築環境與能源工程系教授及光子技術研究院管理委員會成員) 榮獲為2023年度香港工程科技獎，以表彰他對顏色與影像科學、照明技術與工程方面的傑出成就。   香港工程科技獎是由香港工程科學院於2022年推出的備受推崇的獎項，旨在表彰和肯定香港年輕新一代在工程科技領域的卓越貢獻和優秀成就。是次獎項秉持嚴謹且高水平的評審標準，將表揚來自不同領域並且在研究、開發、創新和創業等方面為社會提供創意解決方案並取得重大進展的年輕科學家、工程師和技術專家。   恭喜魏教授！   欲了解更多詳情，請瀏覽： https://hkestaward2023.hkaes.org/tc/winners.asp

何祖源教授在光子技術研究院的傑出研討會上發表演講 (只有英文版本)

The PRI Distinguished Seminar was successfully held yesterday, covering the topic of” Optical Fiber Distributed Acoustic Sensors: Challenges and Solutions”. The Distinguished Seminar was graced by the presence of Prof. Zuyuan He, Chair Professor of the Department of Electronic Engineering at Shanghai Jiao Tong University, whose invaluable contributions and insights were central to the seminar’s success.   We extend our gratitude to Prof. He for sharing their expertise and enriching the discourse. We would also like to thank all participants for their active engagement.

Prof. Cheng-Wei Qiu delivered a speech during the PRI Distinguished Seminar Series on 8 April 2024 (只有英文版本)

The Photonics Research Institute (PRI) Distinguished Seminar Series “Synthetic Interface Optics: Plasmonic / dielectric, TMDC and van der Waals Metasurfaces” was successfully held on 8 April 2024.   We are delighted to have Prof. Cheng-Wei Qiu, Dean’s Chair Professor of the National University of Singapore, Fellow of APS, Optica, SPIE and The Electromagnetics Academy (US) to share his valuable insights and experiences.   Prof. Qiu’s Research expertise and interest are Metasurface photonics, 2D-materials-based quantum nanophotonics, spin-orbit coupling, van der Waals photonics.   We would like to extend our gratitude to Prof. Qiu for his contribution. His expertise and knowledge were greatly appreciated.   We look forward to hosting more such enriching events in the future. Stay tuned for updates on our website.

PRI researcher develops a novel on-chip photothermal gas sensor (只有英文版本)

A joint research team led by Prof. Wei Jin, Associate Director of Photonics Research Institute (PRI) and Chair Professor of Photonic Instrumentation in the Department of Electrical and Electronic Engineering of PolyU, and Prof. Chuantao Zheng of Jilin University, has developed a novel on-chip photothermal spectroscopy sensor for high sensitivity gas detection.   On-chip waveguide sensors have attracted considerable attention due to its ultra-compact footprint and potential for large-scale integration. However, existing waveguide gas sensors are primarily based on direct absorption spectroscopy which suffer from limited sensitivity and measurement range. The team demonstrated a new method for high sensitivity on-chip gas measurement by using photothermal spectroscopy. This technique detects photothermal phase change resulting from non-radiative relaxation upon light absorption by gas molecules, presenting itself as an indirect technique capable of circumventing the limitations of direct absorption measurement.   By selecting chalcogenide glass (ChG) as the core-layer material and fabricating thermally-isolated ChG-on-SU8 waveguide for thermal field accumulation, the team has demonstrated a remarkable acetylene detection sensitivity of 4 parts-per-million and a dynamic range exceeding 5 orders of magnitude, which outperform traditional direct absorption sensor by nearly 2 and 3 orders of magnitude, respectively.   The research findings have been recently published in Laser & Photonics Reviews. Further investigation is underway to optimize the waveguide structure, improve thermal accumulation and understand deeper the optical-thermal-phase transfer mechanism. The team looks forward to collaborating with the industry in further development of the integrated on-chip sensors and applications.   For more details, please click Here.

Organic solar cell breakthrough from Prof. Gang LI’s team (只有英文版本)

Prof. Gang LI’s research team published a paper “Rational molecular and device design enables organic solar cells approaching 20% efficiency” on Nature Communications on 28 February 2024, which reported a new efficiency breakthrough of organic solar cells.   Ternary strategy that introduces a guest component into the benchmark host blend is a promising method further to improve the power conversion efficiency of organic solar cells, but how to design a suitable third component remains challenging. Here, the authors systematically investigated the design rules of guest molecules by theoretical simulations and successfully synthesized a new molecule, o-BTP-eC9, contributing to a record organic solar cell with 19.9% (19.5 certified) efficiency.   The paper is available at https://www.nature.com/articles/s41467-024-46022-3

魏敏晨教授及阮海輝博士的科研故事獲收錄於《PolyImpact》（第二冊）

兩位光子技術研究院研究人員魏敏晨教授和阮海輝博士的研究在 PolyImpact Volume II 中刊登。   《PolyImpact：理大創新發明造福世界》第二卷收錄了 10 個有影響力的故事，重點介紹了理大在轉化其創新技術、為全球問題提供解決方案以及對社會產生積極影響方面的非凡歷程。   故事（以英文版為準） 光子技術研究院研究人員姓名 職位 嶄新色彩管理技術 （True colours: State-of-the-art R&D optimises colours in lighting and imaging systems, improving users’ experience and well-being） 魏敏晨教授   光子技術研究院管理委員會成員   建築環境及能源工程學系教授 提升超薄強化曲面玻璃生產的運算模型 （Taking out the guesswork: Computational models boost yield and reduce scrap rate in manufacturing ultra-thin, chemically strengthened, curved cover glass for electronic devices） 阮海輝博士   光子技術研究院成員   機械工程學系副教授   欲了解更多資訊，請參閱 https://polyu.hk/KAsXu （只有英文版）

Prof. Ioannis (John) Kymissis gave a speech at the PRI Distinguished Seminar Series on 6 Feb 2024 (只有英文版本)

The Photonics Research Institute (PRI) successfully hosted a Distinguished Seminar yesterday. The seminar was presented by Prof. Ioannis (John) Kymissis, the Kenneth Brayer Professor of Electrical Engineering and Chair of the Department of Electrical Engineering at Columbia University. The seminar topic was "Electronics on anything - how thin film electronics can instrument the world".   We would like to express our gratitude to Prof. Kymissis for his invaluable contribution to the seminar. We also extend our sincere appreciation to all the participants who attended the seminar.