Low optical losses in plasmonic TiN thin films implanted with silver and gold
Abstract
Titanium-nitride (TiN) is known as a very promising plasmonic material, which offers many advantages compared to conventional metals commonly used in practical devices. Despite many improvements, TiN still suffers from high losses in the near-infrared (NIR) spectral region, making it less suitable for real-life applications. In this study, we have investigated the effects of pure silver implanted as well as silver/gold co-implanted TiN thin films on their optical properties, which we analyzed by spectroscopic ellipsometry. We demonstrate that the presence of silver and gold drastically changes both the real and imaginary part of the dielectric function. The implanted films exhibit optical losses several times lower compared to as-deposited TiN. The changes are in particular more pronounced for the samples with Au/Ag co-implantations, reaching nearly the same optical values as those of pure gold and being only slightly larger than that of silver. Thus, such an optical tuning of TiN open...s new horizons and provide high potential for its implementation into plasmonic applications.
Keywords:
Gold / Ion implantation / Optical losses / Plasmonics / Silver / Titanium-nitrideSource:
Optical Materials, 2022, 123, 111936-Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) (RS-MESTD-inst-2020-200017)
- German-Serbian DAAD bilateral collaboration [451-03-01971/2018-09/3, 57446854]
- Slovak Research and Development Agency [APVV-20-0220]
- European Regional Development Fund [ITMS2014+ 313011W085]
DOI: 10.1016/j.optmat.2021.111936
ISSN: 0925-3467
WoS: 000750716900002
Scopus: 2-s2.0-85121961262
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Institution/Community
VinčaTY - JOUR AU - Novaković, Mirjana M. AU - Popović, Maja AU - Noga, Pavol AU - Vana, Dušan AU - Ronning, Carsten PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10106 AB - Titanium-nitride (TiN) is known as a very promising plasmonic material, which offers many advantages compared to conventional metals commonly used in practical devices. Despite many improvements, TiN still suffers from high losses in the near-infrared (NIR) spectral region, making it less suitable for real-life applications. In this study, we have investigated the effects of pure silver implanted as well as silver/gold co-implanted TiN thin films on their optical properties, which we analyzed by spectroscopic ellipsometry. We demonstrate that the presence of silver and gold drastically changes both the real and imaginary part of the dielectric function. The implanted films exhibit optical losses several times lower compared to as-deposited TiN. The changes are in particular more pronounced for the samples with Au/Ag co-implantations, reaching nearly the same optical values as those of pure gold and being only slightly larger than that of silver. Thus, such an optical tuning of TiN opens new horizons and provide high potential for its implementation into plasmonic applications. T2 - Optical Materials T1 - Low optical losses in plasmonic TiN thin films implanted with silver and gold VL - 123 SP - 111936 DO - 10.1016/j.optmat.2021.111936 ER -
@article{ author = "Novaković, Mirjana M. and Popović, Maja and Noga, Pavol and Vana, Dušan and Ronning, Carsten", year = "2022", abstract = "Titanium-nitride (TiN) is known as a very promising plasmonic material, which offers many advantages compared to conventional metals commonly used in practical devices. Despite many improvements, TiN still suffers from high losses in the near-infrared (NIR) spectral region, making it less suitable for real-life applications. In this study, we have investigated the effects of pure silver implanted as well as silver/gold co-implanted TiN thin films on their optical properties, which we analyzed by spectroscopic ellipsometry. We demonstrate that the presence of silver and gold drastically changes both the real and imaginary part of the dielectric function. The implanted films exhibit optical losses several times lower compared to as-deposited TiN. The changes are in particular more pronounced for the samples with Au/Ag co-implantations, reaching nearly the same optical values as those of pure gold and being only slightly larger than that of silver. Thus, such an optical tuning of TiN opens new horizons and provide high potential for its implementation into plasmonic applications.", journal = "Optical Materials", title = "Low optical losses in plasmonic TiN thin films implanted with silver and gold", volume = "123", pages = "111936", doi = "10.1016/j.optmat.2021.111936" }
Novaković, M. M., Popović, M., Noga, P., Vana, D.,& Ronning, C.. (2022). Low optical losses in plasmonic TiN thin films implanted with silver and gold. in Optical Materials, 123, 111936. https://doi.org/10.1016/j.optmat.2021.111936
Novaković MM, Popović M, Noga P, Vana D, Ronning C. Low optical losses in plasmonic TiN thin films implanted with silver and gold. in Optical Materials. 2022;123:111936. doi:10.1016/j.optmat.2021.111936 .
Novaković, Mirjana M., Popović, Maja, Noga, Pavol, Vana, Dušan, Ronning, Carsten, "Low optical losses in plasmonic TiN thin films implanted with silver and gold" in Optical Materials, 123 (2022):111936, https://doi.org/10.1016/j.optmat.2021.111936 . .