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Nanoscale generation of white light for ultrabroadband nanospectroscopy

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Scientists from ITMO University have used a silicon-gold nanoparticle agitated by a pulse laser in IR band as an effective source of white light. One such "nanobulb" was integrated into a standard probe microscope, which allowed the researchers to overcome the diffraction limit and examine subwavelength-size objects. The new technology makes modern near-field microscopy cheaper and simpler, and is potentially useful in medicine. The study has been published in Nano Letters.

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