A team of researchers at the Chinese Academy of Sciences working with a colleague from ShanghaiTech University and another from Zhangjiang Laboratory, has developed a new way to make a laser with light in a wide range of ...
Using the Nanshan One-meter Wide-field Telescope (NOWT), Chinese astronomers have performed multi-color photometric observations of a rapidly rotating magnetic star known as HD 345439. Results of this observational campaign, ...
While conventional photodetectors can only measure light intensity, the light field contains much richer information. This information includes but is not limited to phase, polarization, and spectrum.
Optics & Photonics
Nov 4, 2022
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12
Plants need light to grow. However, due to excess nutrients and/or the absence of herbivores, less light can reach lower vegetation layers in grasslands. Consequently, a few fast-growing species dominate and plant diversity ...
Ecology
Nov 3, 2022
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28
A Dutch-Italian-German team of astronomers has observed a huge glow of radio emission around a cluster of thousands of galaxies. They combined data from thousands of LOFAR antennas that were focused for 18 nights on an area ...
Astronomy
Nov 2, 2022
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289
All stars, including the sun, have a finite lifetime. Stars shine by the process of nuclear fusion in which lighter atoms, such as hydrogen, fuse together to create heavier ones. This process releases vast quantities of energy ...
Astronomy
Oct 28, 2022
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101
The sun was in a good mood this week, or at least that's what it looked like in a photo published by NASA.
Astronomy
Oct 28, 2022
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48
Albert Einstein, one of the most celebrated modern scientists, proposed the revolutionary theory of special relativity more than a century ago. This theory forms the basis of most of what we understand about the universe, ...
General Physics
Oct 20, 2022
21
100
Whispering-gallery-mode (WGM) cavities represent an intriguing platform for intensely enhancing light-matter interaction. It lays the foundations for ultra-low threshold lasers, ultra-sensitive sensing, nonlinear optics and ...
Optics & Photonics
Sep 30, 2022
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9
Astronomy has a blind spot in the area of far-infrared radiation compared to most other wavelengths. A far-infrared space telescope can only utilize its full sensitivity with an actively cooled mirror at temperatures below ...
Astronomy
Sep 6, 2022
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