Fraunhofer lines, discovered in 1814, are dark lines in the Sun's spectrum caused by the absorption of specific wavelengths of light by elements in the solar atmosphere, marking the birth of ...
Non-line-of-sight imaging can detect objects even if they are behind a wall. Researchers have now extended this method from visible wavelengths into the near and mid-infrared region. Credit: Xiaolong ...
Raman spectroscopy, compatible with molecular and material samples, is one of the most popular quantitative and qualitative spectroscopic techniques. A sample has a distinct Raman “fingerprint” that ...
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