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In contrast, detecting visible light is relatively straightforward – so much so that even a smartphone camera is good enough to have spectroscopic applications. In the latest work, international ...
Scientists have built the first optical frequency comb -- a tool for precisely measuring different frequencies of visible light -- that actually looks like a comb. Finally, an optical frequency ...
Physicists at ETH Zurich have developed a lens that can transform infrared light into visible light by halving the wavelength of incident light. The study is published in Advanced Materials.