A 2 x 2mm integrated photonic chip will make interferometers, and therefore precision optics, even more powerful. Credit: J Adam Fenster/University of Rochester

Researchers amplify interferometric signals on photonic chip

University of Rochester researchers have packaged a way of amplifying interferometric signals using inverse weak value amplification - without increase in extraneous input or 'noise' - on an integrated photonic chip

A metasurface made of arsenic trisulfide nanowires (yellow) transmit an incoming near-infrared frequency (red) as well as its third harmonic ultraviolet frequency (violet), which would normally be absorbed by the material. Image: Duke University 

Researchers find how to extend useable wavelength of chalcogenide glasses

Chalcogenide glasses could now find a home in applications such as underwater communications, environmental monitoring and biological imaging


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