Friday, December 27, 2019

Nanospectrometer through single nanowire

Overview of nanospectrometer research

nanospectrometer made of single nanowire
Scientists at the University of Cambridge, U.K., designed an ultra-miniaturized device that could image single cells without the need for a microscope or make chemical fingerprint analysis possible with a smartphone camera.
Made of a single nanowire, the new device is the smallest spectrometer ever created. Most modern nanospectrometers are bulky, and are based around principles similar to what Isaac Newton first demonstrated with his prism in the 1600s—the spatial separation of light into different spectral components.

Size of newly developed nanospectrometer

Researchers have now produced a system up to 1000 times smaller than those previously reported. The Cambridge team, working with colleagues from the U.K., China, and Finland, used a nanowire whose material composition is varied along its length, enabling it to respond to different colors of light across the visible spectrum. Using techniques similar to those employed for making computer chips, they then created a series of light-responsive sections on the nanowire. The team hopes the tiny platform will lead to a new generation of ultra-compact nanospectrometers. View more materials research news

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