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Be it light, sound, or an electromagnetic wave, a probe beam operates the same way — the beam gets sent ahead and a wave of the same nature is reflected back. The absorbed energy is converted to heat, for which there has been no perceived use until now.
Researchers at the Institute for Basic Science (IBS) theoretically showed that the temperature increase caused by a probe beam could be used to generate a signal for detecting objects. Further, this so-called active thermal detection could enable superresolution imaging at all scales, said the researchers, compared to conventional superresolution techniques, which are limited to microscopy applications.
“Nobody tried to use thermal radiation for superresolution, even…READ MORE