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Two-dimensional reconfigurable gradient index memory metasurface
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View: Figures


Image of FIG. 1.
FIG. 1.

Pre-pulse (black) and post-pulse (red) unprocessed spectra for transmission at one position on the device. Schematic showing normalization method for transmission maps in Figure 2 . Normalized transmission is given by , which is calculated independently for each measurement location. (Inset) Schematic of hybrid device showing contact locations and shapes as well as far-infrared light for transmission.

Image of FIG. 2.
FIG. 2.

Plots of transmission at the resonance frequency for each position within the sample after application of voltage pulses. Each pixel in the plots represents the results of a spectrum at a single measurement location. Results are interpolated near the contacts. Hotter colors indicate a greater shift in the transmission at resonance. Contact locations are indicated by red, yellow, and gray outlines roughly corresponding to the current strength (resistor size) in that region. (a) Application of one 140 V×1.5 s followed by two 125 V×1.5 s pulses. (b) Application of four 150 V×1.5 s pulses. (c) Application of four 115 V×1.5 s pulses.

Image of FIG. 3.
FIG. 3.

Index of refraction and absorption coefficient of our device obtained from simulations. (Inset) Schematic of unit cell of our device with dimensions.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Two-dimensional reconfigurable gradient index memory metasurface