Abstract
Double negative-index plasmonic metamaterials can be integrated with plasmonic photonic circuits to be applied to optical devices. The previous work fabricated the plasmonic metamaterials layers by growing gold nanostructures on glass substrate utilizing the direct current magnetron sputtering technique at room temperature. Herein, we study the effect of copper and titanium dioxide nanoparticles as a substrate on the optical response of these layers. Thin-film characterizations were analyzed by transmission electron microscopy, field emission scanning electron microscopy, powder X-ray diffraction, and UV–Visible spectroscopy. Moreover, the optical properties of thin films are described via the film matrix method, which also discusses and confirms the optical gain property of fabricated layers.
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The authors wish to acknowledge Dr. Homayoon Jalilian and Ms. Sareh Khosravi for their assistance.
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ZJ contributes to designing the experimental setup and characterizing and writing the manuscript. RM is the supervisor of this work. His contribution lays in the initial idea for the experimental setup and guidance of the work.
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Jalilian, Z., Moradian, R. The substrate effect on optical response of plasmonic metamaterials. J Mater Sci: Mater Electron 33, 19839–19845 (2022). https://doi.org/10.1007/s10854-022-08802-9
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DOI: https://doi.org/10.1007/s10854-022-08802-9