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Updates every hour. Last Updated: 21-Oct-2026 10:17 ET (21-Oct-2026 14:17 GMT/UTC)
Micro-transfer-printed InGaAs/GaAsSb photodetectors on silicon enable broadband, high-speed optical interconnects
Chinese Society for Optical EngineeringAs demand for optical communication capacity continues to grow, the 2 µm wavelength region is emerging as a promising new window for future photonic systems. Researchers have developed a high-speed InGaAs/GaAsSb type-II superlattice photodetector that is heterogeneously integrated on silicon via micro-transfer printing. By combining a backside Au reflector with a low-index BCB cavity, the device achieves broadband operation from 0.8 to 2.5 µm and a 57.9% responsivity enhancement at 2 µm, while maintaining 17–18.7 GHz bandwidth and clear 50 Gbps eye diagrams. The work provides a practical route toward broadband, high-speed photodetectors for silicon photonics and next-generation optical interconnects.
- Journal
- PhotoniX
- Funder
- National Key Technologies R&D Program of China, National Natural Science Foundation of China, Strategic Priority Research Program of the Chinese Academy of Sciences, Research Foundation for Advanced Talents of the Chinese Academy of Sciences, Leading-Edge Technology Program of Jiangsu NSF, State Key Laboratory of Special Rare Metal Materials
Quantum differential holography: A quantum-enhanced computational holographic scheme driven by metasurfaces
Chinese Society for Optical Engineering- Journal
- PhotoniX
- Funder
- Yuelushan Center for Industrial Innovation, National Natural Science Foundation of China
Study into the ability of those with a head injury injury history to take control of self-driving vehicles when required
Binghamton UniversityMuch of the appeal of self-driving vehicles is just that: the fact that they drive themselves. Still, there are times when a driver needs to put their hands on the wheel, and a new study from Binghamton University suggests that task could be more difficult if you have a history of head injuries.
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- Traffic Injury Prevention
A mathematical theory drives the control of robots, aircraft, and microscopic devices
Escuela Superior Politecnica del Litoral- Journal
- International Journal of Systems Science
AI gives tomorrow's wireless networks a clearer voice
Queen Mary University of LondonFabrication of high and medium entropy transition metal alloy submicrometer particles by subnanosecond laser ablation in water
Osaka Metropolitan University- Journal
- Journal of Alloys and Compounds
HKU Engineering develops atomically thin “analogue in-memory search” chip to redefine AI computing limits with minimalist architecture
The University of Hong KongThe explosion of artificial intelligence (AI) and the era of Big Data have exposed a critical flaw in traditional computer hardware: the slow and energy-consuming data transfer between memory and processors, commonly known as the von Neumann bottleneck. Every day, when our devices process AI queries, they must move massive amounts of data back and forth, causing severe delays and battery drain.
To address this challenge, researchers at The University of Hong Kong (HKU) have created a chip with a minimalist architecture that performs complex searches directly where the data is stored, fundamentally bypassing this bottleneck. The research team, led by Professor Can Li from the Department of Electrical and Computer Engineering of the Faculty of Engineering and the Centre for Advanced Semiconductors and Integrated Circuits (CASIC), has developed a novel analogue content-addressable memory (CAM) utilising two-dimensional (2D) MoS2 flash memories.
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- Nature Nanotechnology