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Researchers at the University of Illinois at Urbana Champaign have developed compact visible wavelength achromatic mirrors using 3D printing and porous silicon, which are crucial for miniaturization and lightweight optical devices. These high-performance hybrid micro optical devices can achieve high focusing efficiency while minimizing volume and thickness. In addition, these microlenses c...
BEIJING, Dec. 19 (Xinhua) -- A team of Chinese researchers used a novel theory to invent a new type of ultrathin optical crystal with high energy efficiency, laying the foundation for next-generation laser technology.This photo taken on Dec. 15, 2023 shows a Twist Boron Nitride (TBN) crystal placed on a piece of fused silica in Peking University, Beijing, capital of China. A team of Chinese rese...
During Cyber Week, Saturn is now selling the Dyson V589 Detect Absolute with many accessories for only 15 euros. With this, retailers have once again achieved the most favorable price for the 2023 packaging of popular cordless vacuum cleaners - a cost-effective deal.After a brief break between Black Friday and Cyber Monday, the quote for Dyson V15 Detect Absolute is about to be updated. Taking a l...
When running various artificial intelligence programs such as large language models, although data centers and high-performance computers are not limited by the computing power of their individual nodes, the amount of data transmitted between nodes is currently the root cause of the limitations on the performance and bandwidth transmission of these systems.Because some nodes in the system are more...
A new device composed of semiconductor rings generates pairs of entangled photons, which can be used in photon quantum processors.Quantum light sources generate entangled photon pairs, which can be used in quantum computing and cryptography. A new experiment has demonstrated a quantum light source made from semiconductor gallium nitride. This material provides a multifunctional platform for devic...