From space, Earth's populated areas glow on the otherwise "black marble" of the planet at night. For decades, scientists assumed this glow was steadily increasing as the world developed. However, a new study published in ...
Environment
7 hours ago
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10
A research team led by Prof. Zhang Tianshu from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has developed a low-stress electro-optic switch based on large-aperture β-barium borate (BBO) slab ...
Optics & Photonics
Feb 9, 2026
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15
Infrared sensors, which act as the "seeing" component in devices such as LiDAR for autonomous vehicles, 3D face recognition systems in smartphones, and wearable health care devices, are regarded as key components in next-generation ...
Nanophysics
Nov 3, 2025
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58
A laser navigating tool doomed a Japanese company's lunar lander earlier this month, causing it to crash into the moon.
Space Exploration
Jun 24, 2025
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37
Laser frequency combs are light sources that produce evenly spaced, sharp lines across the spectrum, resembling the teeth of a comb. They serve as precise rulers for measuring time and frequency, and have become essential ...
Optics & Photonics
May 21, 2025
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55
Metalenses, nano-artificial structures capable of manipulating light, offer a technology that can significantly reduce the size and thickness of traditional optical components. Particularly effective in the near-infrared ...
Optics & Photonics
Mar 28, 2024
0
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