Journal
OPTICAL MATERIALS EXPRESS
Volume 9, Issue 5, Pages 2117-2127Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.9.002117
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Funding
- Det Frie Forskningsrad (DFF) [8022-00387B]
- Villum Fonden [11116]
- Direktor Ib Henriksens Fond
- U.S. Department of Energy (DOE) [DE-SC0007117]
- U.S. Department of Energy (DOE) [DE-SC0007117] Funding Source: U.S. Department of Energy (DOE)
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It is well known that noble metals are not compatible with silicon fabrication processing due to their low melting point, and that their plasmonic behaviour suffers from the material losses at visible wavelengths. As an alternative, titanium nitride has been highly investigated in order to overcome these challenges. High temperature characterization of TiN films has been performed, showing its CMOS compatibility; however, information on intrinsic losses at lower temperatures is still lacking. Here we experimentally investigate the optical properties of a 100 nm TiN film under low temperatures down to 1.5 K. From the reflection measurements we retrieve the dielectric constant and analyze plasmonic applications possibilities. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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