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Time-Varying Metasurfaces

Summary

Researchers at Purdue University have developed a time-varying, optical metasurface technology to obtain a new class of planar optical devices, which includes tunable versions of planar devices obtained by space variant metasurfaces. The impact of time-varying metasurfaces exceeds tunable devices and new physical effects are obtained. Time-varying metasurfaces exhibit a more universal form of Snell's relation not limited by Lorentz reciprocity, enabling the building of magnetic-free optical isolators. In addition, these metasurfaces allow for wavelength modulation, which can be utilized to build frequency or phase modulators, or they can be used to control energy eigenstates of single photons in quantum experiments

Technology Benefits

Time-variant phase modalityEnables magnetic-free optical isolators Wavelength modulation

Technology Application

Tunable planar lensesOptical communications Laser cooling

Detailed Technology Description

Alex KildishevPurdue nanoHubPurdue Electrical and Computer Engineering

Countries

United States

Application No.

None

Country/Region

USA

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