Effect of phase separation on the behavior of surface plasmons in Ag-Cu alloy thin films

B., Pravallika and Dutta-Gupta, S. (2022) Effect of phase separation on the behavior of surface plasmons in Ag-Cu alloy thin films. In: 2022 Workshop on Recent Advances in Photonics, WRAP 2022, 4 March 2022 through 6 March 2022, Mumbai.

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Abstract

Propagating surface plasmon polaritons excited on 49 at% Ag-Cu alloy thin films are studied experimentally. Co-sputtering technique is used to obtain metastable FCC solid solution phase and further annealed to achieve near equilibrium Ag-rich and Cu-rich phases. The dispersion of alloys is measured using the Kretschmann configuration. We show that the plasmonic response of alloy is sensitive to the phases formed during fabrication. Further, the annealed alloys show narrower dispersion compared to as-deposited alloys. © 2022 IEEE.

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IITH Creators:	IITH Creators ORCiD Dutta-Gupta, S. UNSPECIFIED
Item Type:	Conference or Workshop Item (Paper)
Additional Information:	The authors acknowledge funding support from SERB grant No. SERB/ECR/2018/002628 and DST-FIST (SR/FST/ETI-421/2016)
Uncontrolled Keywords:	annealing; co-sputtering; copper; Plasmonics; silver; thin films
Subjects:	Others > Metallurgy Metallurgical Engineering Materials Engineering > Materials engineering
Divisions:	Department of Material Science Engineering
Depositing User:	. LibTrainee 2021
Date Deposited:	20 Jul 2022 07:30
Last Modified:	20 Jul 2022 07:30
URI:	http://raiithold.iith.ac.in/id/eprint/9801
Publisher URL:	http://doi.org/10.1109/WRAP54064.2022.9758198
Related URLs:	Author

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