Communications of the ACM
Scientists Grow Optical Chips in Petri Dish
Scientists at Russia's Information Technologies, Mechanics, and Optics (ITMO) and St. Petersburg Academic universities, working with colleagues at France's Universite de Lorraine, optical chips made from Gallium Phosphide in a Petri dish.
Credit: Pavel Trofimov et al
Scientists at Russia's Information Technologies, Mechanics, and Optics (ITMO) and St. Petersburg Academic universities, working with colleagues at France's Universite de Lorraine, have grown optical chips in a Petri dish.
The new chip is made from gallium phosphide (GaP), with a halide perovskite microlaser grown directly on the waveguide.
The device transmits signals for a much greater distance than chips with silicon or silver nano-waveguides. The chip also can adjust the laser-emission range from green to red spectral range, and shift emission color after production; a perovskite optical nanoantenna receives the signal travelling along the waveguide, coupling two chips into one system.
ITMO’s Sergey Makarov said, “The beauty of this approach is that we create perovskite microlasers with nano-waveguides embedded in them right from the start.”
From ITMO News
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