Angular memory of photonic metasurfaces
Valagiannopoulos C. Sarsen A. Alu A.
1 November 2021Institute of Electrical and Electronics Engineers Inc.
IEEE Transactions on Antennas and Propagation
2021#69Issue 117720 - 7728 pp.
Nonlinear materials can exhibit bistability, namely support different possible outputs for the same input, depending on the excitation history. This property can find direct application to photonic memory devices, the vast majority of which operate by changing the amplitude of the incoming signals. In this work, we study impedance metasurfaces producing hysteresis responses with respect to impinging beam angle by keeping a fixed intensity profile; accordingly, the considered setups remember the history of illumination incidence. The reported findings may open new unexplored avenues toward the design of photonic systems supporting a wide range of fixed-power memory functionalities from switching and sensing to information storage and data writing.
Angular memory , directional bistability , Kerr nonlinearity , nonlinear metasurface
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Department of Physics, Nazarbayev University, Nur-Sultan, 10000, Kazakhstan
Advanced Science Research Center, City University of New York, New York, 10016, NY, United States
Physics Program, Graduate Center, City University of New York, New York, 10016, NY, United States
Department of Physics
Advanced Science Research Center
Physics Program
10 лет помогаем публиковать статьи Международный издатель
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