Chinese Optics Letters, 2020, 18 (6): 062402, Published Online: May. 14, 2020
Tunable beam deflection based on plasmonic resonators mounted freestanding thermoresponsive hydrogel Download: 503次
Abstract
We propose and numerically demonstrate a dynamic beam deflector based on plasmonic resonator loaded thermoresponsive freestanding hydrogel that swells and collapses in water by temperature. For this purpose, we utilize four-step phase gradients mounted on freestanding hydrated hydrogel. For normal incidence, linearly orthogonal light deflects to 19.44° in the collapsed state and 14.40° in the swollen state of hydrogel. Furthermore, the light deflects at a third angle of 12.29° when the solvent changes from water to ethanol. It is expected that our metadesign will provide a platform for dynamic holography, active lensing, data storage, and anticounterfeiting.
Ata Ur Rahman Khalid, Juan Liu, Naeem Ullah, Shiqi Jia. Tunable beam deflection based on plasmonic resonators mounted freestanding thermoresponsive hydrogel[J]. Chinese Optics Letters, 2020, 18(6): 062402.