Guler, Urcan3; Ndukaife, Justus C.4; Naik, Gururaj V.3; Nnanna, A. G. Agwu5; Kildishev, Alexander V.3; Shalaev, Vladimir M.3; Boltasseva, Alexandra1
1 Department of Photonics Engineering, Technical University of Denmark2 Plasmonics and Metamaterials, Department of Photonics Engineering, Technical University of Denmark3 Purdue University4 unknown5 Purdue University Calumet
Titanium nitride is considered a promising alternative plasmonic material and is known to exhibit localized surface plasmon resonances within the near-infrared biological transparency window. Here, local heating efficiencies of disk-shaped nanoparticles made of titanium nitride and gold are compared in the visible and near-infrared regions numerically and experimentally with samples fabricated using e-beam lithography. Results show that plasmonic titanium nitride nanodisks are efficient local heat sources and outperform gold nanodisks in the biological transparency window, dispensing the need for complex particle geometries.