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- W4207019238 endingPage "2100472" @default.
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- W4207019238 abstract "Spatial light modulators (SLMs) exhibit a powerful capability of controlling electromagnetic waves. They are found to have numerous applications at terahertz (THz) frequencies, including wireless communication, digital holography, and compressive imaging. However, the development toward large-scale, multi-level, and multi-functional THz SLM encounters technical challenges. Here, an electrically programmable THz metamaterial consisting of an array of 8×8 pixels is presented, in which the phase change material of vanadium dioxide (VO2) is embedded. After successfully suppressing the crosstalk from adjacent pixels, the THz wave can be modulated in a programmable manner. The switching speed of each pixel is in the order of 1 kHz. In particular, utilizing the hysteresis effect of VO2, the memory effect is demonstrated. The THz amplitude of each pixel can be written and erased by individual current pulses. Furthermore, multi-state THz images can be generated and stored. This programmable metamaterial with memory function can be extended to other frequency bands and opens a route for electromagnetic information processing." @default.
- W4207019238 created "2022-01-26" @default.
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- W4207019238 date "2022-01-25" @default.
- W4207019238 modified "2023-10-16" @default.
- W4207019238 title "Programmable Terahertz Metamaterials with Non‐Volatile Memory" @default.
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- W4207019238 doi "https://doi.org/10.1002/lpor.202100472" @default.
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