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2025
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Prof. Gao began his presentation with a brief outline of important role that mechanics plays in the development of structural and functional materials, enlightening the audience on the recent advances in nanostructured materials, biomedical materials, mechanical metamaterials, soft actuators, flexible electronics, tunable mechanochromics, regenerative mechanomedicine and many more.
He further illustrated how fundamental principles of mechanics enable the proactive modulation and programming of properties in both engineering and biological systems. Through case studies, Prof. Gao highlighted the breakthroughs in mechano-energy, mechano-interfaces, and mechano-materials, demonstrating their transformative potential.
Event date: 13/06/2025
Speaker: Prof. GAO Huajian
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Mechanics Applied Mechanics
- Resource Type:
- Video
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Video
Prof. Yao began his presentation with an overview of microwave photonics (MWP), emphasising that the technology uses light as a carrier and photonic and optoelectronic devices for the generation, transmission, control and processing of microwave signals. He compared the properties of four major material systems including indium phosphide (InP), silicon nitride (Si3N4), lithium niobate on insulator (LNOI) and silicon on insulator (SOI), highlighting that SOI, Si3N4, and LNOI are playing important role in implementing photonic integrated circuits (PICs).
Prof. Yao further explored current applications of photonic integrated MWP systems. These included: true time delay networks for wideband beamforming, optoelectronic oscillators for low-phase-noise, high-frequency microwave generation, programmable signal processors for versatile photonic signal processing, high-sensitivity optical sensors and integrated MWP radar, etc.
Event date: 11/06/2025
Speaker: Prof. YAO Jianping
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Electrical Engineering
- Keywords:
- Microwave communication systems Optical communications
- Resource Type:
- Video
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Video
Lu began his presentation with a brief outline of the role of functional nanomaterials in addressing global challenges and advancing green hydrogen technologies. He highlighted the critical importance of electrodes, membranes, catalysts and photocatalysts in enhancing the efficiency and scalability of electrolysis and photocatalysis systems, as well as the significance of solid-state storage materials in overcoming challenges related to hydrogen storage and distribution, noting that some low-pressure solutions are already in use.
Still, Prof. Lu emphasised that further technological innovations are needed to reduce costs and enhance performance. He explained that green hydrogen is a valuable energy carrier; it can not only contribute to decarbonisation in the power sector, but also act as zero-emission fuel for sea, land and air freight, which is crucial for the achievement of a net-zero future by 2050. In conclusion, Prof. Lu called on the academic community to accelerate the commercialisation of new materials for the construction of cost-effective hydrogen infrastructure, and urged researchers to bridge the gap between technology R&D and practical applications.
Event date: 20/05/2025
Speaker: Prof. G.Q. Max LU
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Clean energy Nanotechnology Hydrogen as fuel
- Resource Type:
- Video