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In the journal Optical Materials Express, the researchers describe how they created atunable wave plate inside a fused silica waveguide.

The advantage of using a waveguide system is that light and sound are not bound between two mirrors, but propagating along the waveguide.

The researchers also studied the excitation and temperature dependence of the gain contour and the patterned waveguide, based on polyurethane-acrylate, which boosted both the gain and thermal stability of perovskite nanosheets.

Oppo’s waveguide projects any LED color you want, as long as it’s green.

An acoustic waveguide in the atmosphere, Ewing reasoned, would allow the U.S.