Tailoring the plasmonic properties of ultrathin TiN films at metal-dielectric interfaces [Invited]

• Published in: Optical materials express Vol. 9; no. 3; p. 1459
• Main Authors: Catellani, Alessandra, Calzolari, Arrigo
• Format: Journal Article
• Language: English
• Published: Washington Optical Society of America 01.03.2019
• Subjects: Aluminum; Dielectric properties; Effective medium theory; Electronic structure; First principles; Magnesium oxide; Metamaterials; Optical properties; Quantum confinement; Substrates; Superlattices; Superstructures; Titanium nitride

The optical properties of a TiN/(Al,Sc)N superstructures deposited on MgO substrates are studied by using first principles approaches. The modifications of the plasmonic response of ultrathin TiN layers when faced to MgO and nitride surfaces are interpreted at the microscopic level, in terms of the...