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8 March 2019 Shining light on oxide-based nanostructures: tunable plasmonics and spintronics (Conference Presentation)
Rosalia Serna, Johann Toudert, Antonio Mariscal
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Proceedings Volume 10919, Oxide-based Materials and Devices X; 109191C (2019) https://doi.org/10.1117/12.2511297
Event: SPIE OPTO, 2019, San Francisco, California, United States
Abstract
Nanophotonics profits enormously from the unique optical response shown by metamaterials and multilayers based in oxides. The functional optical response is achieved by either embedding non-oxide nano-resonators to enable a plasmonic behavior, or by modifying the oxide composition/structure to tune its optical, electronic and magnetic properties. In this contribution first, we review the non-conventional plasmonics based on elements of the p-block. The plasmonic response has its origin on the interband transitions of these elements in the infrared [1,2]. Especial emphasis will be made on bismuth nano-resonator structures because Bi shows the strongest interband transitions reported so far [3]. Second, we will show the key role of oxide layers in the design of plasmonic metamaterials to enable a strong coupling between plasmonic and photonic modes. Such coupling has demonstrated to be instrumental for development of high resolution optical thermometry sensors [4]. Finally, we show how the fine control of the composition of europium monoxide (EuO) nanocrystalline films induces a large tuning of its band-gap and of the ferroelectric response, which is necessary for its integration in optical and spintronics platforms [5]. [1]. J. Toudert, and R. Serna, Opt. Mat. Expr. 7, 2434 (2016); [2]. J. Toudert, and R. Serna, Opt. Mater. Express 7, 2299 (2017); [3]. J. Toudert, R. Serna, I. Camps, J. Wojcik, P. Mascher, E. Rebollar, T. Ezquerra, J. Phys. Chem. C 121, 3511 ( 2017); [4] G. Baraldi, M.García Pardo, J. Gonzalo, R. Serna and J. Toudert, Adv. Mater. Interfaces 5, 1870058 (2018); [5] A. Mariscal, et al., Appl. Surf. Science 456,980 (2018).
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Rosalia Serna, Johann Toudert, and Antonio Mariscal "Shining light on oxide-based nanostructures: tunable plasmonics and spintronics (Conference Presentation)", Proc. SPIE 10919, Oxide-based Materials and Devices X, 109191C (8 March 2019); https://doi.org/10.1117/12.2511297
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KEYWORDS
Plasmonics
Spintronics
Nanostructures
Oxides
Bismuth
Chemical elements
Metamaterials
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