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Materials Integrated with Silicon Photonics Manipulate Light Phase at Low Loss

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A Columbia University team used a 2D material from the transition metal dichalcogenide (TMD) class to control the phase of light without changing its amplitude or depleting its power. By placing the atomically thin material on top of passive silicon waveguides, the researchers were able to change the phase of light as strongly as if they had used silicon phase modulators, but with much lower optical loss and power consumption. The researchers probed the electro-optic response of tungsten disulfide (WS2) by integrating the semiconductor monolayer on top of a low-loss silicon nitride...Read full article

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