Energy & Green Tech

Ultra-sensitive optical sensor can reduce hydrogen's risks

In the pursuit of clean and renewable energy, hydrogen plays an important role. But a major challenge facing this transition is that the gas is explosive when mixed with air. For this reason, it is crucial to be able to detect ...

Security

Data class-specific image encryption using optical diffraction

Optical computing has been making strides in recent years, with its potential advantages in speed, energy efficiency, and scalability. Among various photonic devices, diffractive deep neural networks (D2NNs) have gained growing ...

Engineering

LiDAR and radar sensors—space-saving headlight installation

People use their eyes and ears to pick up on traffic situations involving potential hazards. For self-driving vehicles to do the same thing, they need a whole host of sensors. As the number of sensors they contain increases, ...

Engineering

New safety technology reduces transportation accidents

Warehouses are home to heavy volumes of traffic. The numbers of industrial trucks (pallet trucks, forklift vehicles and the like) traversing their aisles are growing especially large—in facilities that are themselves increasing ...

Electronics & Semiconductors

Side-polished SMS-based RI sensor employing perfluorinated POF

In a new publication from Opto-Electronic Advances, Xuezhi Zhang, Boyue Yang, Junfeng Jiang, Kun Liu, Xiaojun Fan, Zhaozhu Liu, Min Peng, Guanlong Chen and Tiegen Liu from Tianjin University, Tianjin, China discuss a side-polished ...

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