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李明杰博士帶領的跨學科團隊開發了具有增強多重激子效應的鹵化物鈣鈦礦納米晶體

多重激子效應是指半導體吸收一個光子而產生兩個甚至多個電子電洞對的過程，對於發展新型太陽能電池及高性能光電子器件至為重要。在光電轉換的過程中，如果光子的能量超過了電子電洞對所需的能量，多餘的能量會以熱能的形式消耗掉。如何能有效地利用熱耗散這部分能量來提高光電轉換效率並產生多重激子效應，是有待解決的難題。   最近，應用物理學系及光子技術研究院成員李明杰博士帶領的跨學科團隊開發了具有增強多重激子效應的鹵化物鈣鈦礦納米晶體。通過合理設計的納米晶體 (或稱為量子點) 能將高能光子轉化為多個電子電洞對，突破光電轉換效率的極限。更重要的是團隊首次證明了使用這種新設計的納米晶體，內部量子效率在低閾值下能超過 100%。 這項研究獲刊載於高影響力的科技期刊《Nature Photonics》。李博士的研究不單加深了人們對多重激子效應的認識，同時為開發高效能的光捕獲技術，例如光伏、光子探測和太陽能燃料生產等，提供了重要的參考依據。   請按此了解更多詳情 (只有英文版本)。

郝建華教授團隊獲國家自然科學基金(NSFC)重點項目資助 (只有英文版本)

The Natural Science Foundation of China (NSFC) announced the application results of the 2022 Exercise in September 2022. Prof. Jianhua Hao’s project is successfully funded by the Key Program of NSFC. As PC/PI, Prof. Hao will collaborate the researchers in Nankai University and Sichuan Normal University, China to perform the study of multifunctional ultrathin ferroelectric integrated materials and devices towards neuromorphic computing and human visual system. Artificial intelligence is the frontier field with significant societal impact. However, the present technologies cannot sufficiently meet the needs of supporting the future information society in terms of information transmission bandwidth, power consumption, processing speed and intelligent control. Particularly, the rapid development of neuromorphic computing and artificial vision system urgently call for the innovation in multifunctional integrated materials and devices. On a basis of the Prof. Hao's internationally recognized works regarding ferroelectric manipulation of rare-earth-doped luminescence and ferroelectric optoelectronics, the proposed study is to effectively integrate ferroelectric polarization with multifunctional characteristics of electronic properties of semiconductor, photodetection and rare-earth ion luminescence. Novel synaptic devices with multi-modes will be demonstrated. The developed materials and devices in this project will provide potential solutions for overcoming the development bottleneck of information technology.   Refer to the News: https://mp.weixin.qq.com/s/rGTY0SaDL8Nlxr0oRnytxw  

光子技術研究院成員獲批2022年國家「優秀青年科學基金項目」資助 (只有英文版本)

Dr Tommy Minchen WEI, PRI management committee member, has been awarded the China's Excellent Young Scientists Fund 2022 (Hong Kong and Macau) for his research “Colour Appearance Model and Colour Space” with a total amount of RMB 2 million.  The awarded project “Colour Appearance Model and Colour Space” aims to investigate colour appearance and difference under complicated conditions. Dr Wei, has carried out research on the fundamentals of colour science and developed advanced algorithms and solutions for various imaging systems to address industrial needs, improving the user experience.   The Excellent Young Scientists Fund (Hong Kong and Macau) aims to support young scholars (under the age of 38 for male or 40 for female) who have attained achievements in basic research and conducted innovative research in their chosen fields, fostering them to be internationally leading scholars.

李剛教授獲頒2022/23研究資助局高級研究學者 (只有英文版本)

PRI Management Committee Member, Prof. LI Gang, has been awarded one of the ten grants under the Research Grants Council's (RGC) Senior Research Fellow Scheme 2022/23.   Prof. Li Gang, Department of Electronic and Information Engineering Research Project: “Printable Organic Solar Cells: Materials and Device Investigations towards Applications”   Organic solar cell (OSC) is an emerging photovoltaic (PV) technology with distinct advantages in many areas, such as flexible/portable PV, building integrated PV and transparent power applications. Aiming at accelerating the OSC technology, this project proposed systematic materials and device structure investigation of new photoactive materials, stable transport materials, innovative ternary OSC active layer engineering, a novel approach for transparent OSC and printing technology. The project will significantly push forward OSC technology in terms of high efficiency, operation stability, compatibility with unique applications and being printing friendly. The proposed research represents a new frontier for OSC technology, which integrates chemistry, physics and material science to generate new perspectives in science and come up with solutions to challenging issues in renewable energy.   The RGC Senior Research Fellow Scheme aims to provide sustained support to exceptionally outstanding researchers at UGC-funded universities in Hong Kong, with a view to facilitating their dedication to research and development and to helping universities attract and retain research talent. The Scheme provides ten grants to scholars from any academic disciplines in each round of the annual exercise. Nominees are assessed based on various criteria that include leadership quality and vision in the chosen area of research, the merit of the research proposal and the support provided by the university.

光子技術研究院成員獲得中國科技產業化促進會科技創新獎（2021-2022 年度）二等獎 (只有英文版本)

PRI Member, Dr TSANG Yuen Hong, won the second prize of 2021-2022 Science and Technology Innovation Award of The China Society for the Promotion of Science and Technology Commercialization (CSPSTC).   Project Title: High beam quality, highly stable output power ultrafast laser (高光束質量、高穩定輸出功率超快激光器)   Name of Collaborating Organisations: The Hong Kong Polytechnic University Shenzhen University Shenzhen United Winners Laser Co.,Ltd.   The CSPSTC aims to build a technology service platform in order to optimize the technology development environment and create a good atmosphere to promote the in-depth development of technology finance, also promote the transfer and transformation of scientific and technological achievements and scientific and technological progress, and enhance innovation capacity and business competitiveness.   We take this opportunity to congratulate Dr Tsang for his achievements.   Please click here for more information about the list of awardees. (Chinese Version Only)  

「理大創科開放日」及香港理工大學高等研究院的成立儀式

「理大創科開放日」已在7月16日在香港理工大學校園成功舉行，展示大學在教學、交叉學科研究、知識轉移及創業培育的最新發展及成果，以及如何藉此推動香港、大灣區以至其他地區的創科發展。   香港理工大學高等研究院的成立儀式亦於啟動禮上舉行。理大高等研究院是香港和大灣區內同類型研究平台中最具規模，旨在促進交叉學科研究、與世界知名學者合作，以及向持份者進行技術轉移。理大高等研究院致力透過交叉學科解決方案，解決社會上各種嚴重的問題，並矢志成為世界先驅，其研究重點包括人工智能、碳中和、深空探索、智慧城市、智慧能源等尖端領域。   香港理工大學高等研究院在7 月 16 日的就職典禮上首映的宣傳短片。點擊此處 (只有英文版本)   光子技術研究院在當天設立展位，向公眾展示成員的研究項目。另外，光子技術研究院院長亦在分組會議中發表演講。分組會議為業界從業人員和理大專家研究人員提供了一個絕佳的機會，就技術創新和發展、協作、行業趨勢和應用交換意見。

光子技術研究院成員榮獲2022理工大學青年創新研究學者獎 (只有英文版本)

PRI Member Dr Tommy Minchen WEI has been selected as one of the Awardees of the PolyU Young Innovative Researcher Award (YIRA) 2022.   The YIRA assessment panel has reviewed the submissions, interviewed shortlisted applicants and selected 6 YIRA awardees out of 59 submissions.   The PolyU Young Innovative Researcher Award (YIRA) aims to honor our young PolyU researchers under the age of 35 who have demonstrated novelty, contributed to technology advancement, and propelled transformational innovation into solutions for addressing problems in society with a vision for a positive change to the future.   We take this opportunity to congratulate Dr Wei for his achievements.

劉伯濤教授教授合編《Machine Learning for future Optical Communications Systems》(只有英文版本)

PRI core member, Prof. Alan LAU Pak-tao co-edited a book “Machine Learning for future Optical Communications Systems” and it is already available at Here and the e-version will be accessible by any library worldwide that has a subscription with Elsevier. Description Machine Learning for Future Fiber-Optic Communication Systems provides a comprehensive and in-depth treatment of machine learning concepts and techniques applied to key areas within optical communications and networking, reflecting the state-of-the-art research and industrial practices. The book gives knowledge and insights into the role machine learning-based mechanisms will soon play in the future realization of intelligent optical network infrastructures that can manage and monitor themselves, diagnose and resolve problems, and provide intelligent and efficient services to the end users. With up-to-date coverage and extensive treatment of various important topics related to machine learning for fiber-optic communication systems, this book is an invaluable reference for photonics researchers and engineers. It is also a very suitable text for graduate students interested in ML-based signal processing and networking.  

陳文博士受邀擔任《光學快訊》副主編 (只有英文版本)

PRI Member, Dr CHEN Wen has been invited to be an Associate Editor for "Optics Express" in OPTICA Publishing Group starting from 1 April 2022. Optica Publishing Group publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Express is the all-electronic, open-access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics. Additionally, Optics Express publishes papers dedicated to new developments in the science and engineering of light and their impact on sustainable energy, the environment, and green technologies in its dedicated section, Energy and Environmental Optics Express.   Please click the following links for details: https://opg.optica.org/oe/journal/oe/about.cfm#board

劉伯濤教授和中文大學研究團隊合作開發出最快的矽光子收發器 (只有英文版本)

Prof. Alan Pak Tao LAU, core member of PRI, and PolyU PhD student Xiong WU in collaboration with Prof. Hon Ki TSANG of CUHK developed the World’s fastest Germanium-Silicon(GeSi) on Silicon Photonics Transceiver at 216 Gb/s for Short-Reach Interconnects.   Abstracts For next generation highly integrated transceivers, silicon photonics (SiP) has attracted widespread interest in using mature CMOS production processes to manufacture high-yield, low-cost photonic integrated circuits (PIC) with the potential for integration with CMOS electronics. SiP now routinely integrate GeSi electroabsorption modulators (EAM) and GeSi waveguide photodiodes which have high responsivity and high bandwidth of over 65 GHz. Their ultra-compact dimensions make it possible for multi-channel transceivers to be realized on a small chip area. In this work, we joined forces with CUHK and combine our expertise in signal processing and device fabrication to demonstrate a world-record 216 Gb/s and 200 Gb/s over 1 km and  1.5 km fiber transmission respectively for GeSi-based modulators.   Please click HERE for more details.