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21 May 2014 Dynamic lithography of v-shaped antennas for beam steering applications
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Abstract
A method to generate an optical metasurface is developed. In our experimental setup, we use a pump-probe technique, where the pump beam is used to project patterns of v-shaped antennas on the surface of a silicon substrate. In the areas illuminated with the images of v-shaped antennas electron-hole pairs are created. Therefore, the antenna structures on silicon will have metallic-like properties, we classify this structure as a metasurface. The THz beam probes refraction and reflection on the metasurface generated on the silicon substrate. The dynamic change of these patterns of metasurface causes the beam steering effects of THz radiation.
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Tamelia Ali, Ada-Simona Popescu, Igor Bendoym, Simeon Bikorimana, Roger Dorsinville, Linda Marchese, Alain Bergeron, Marc Terroux, Andrii B. Golovin, and David T. Crouse "Dynamic lithography of v-shaped antennas for beam steering applications", Proc. SPIE 9102, Terahertz Physics, Devices, and Systems VIII: Advanced Applications in Industry and Defense, 91020A (21 May 2014); https://doi.org/10.1117/12.2050463
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