Guler, Urcan6; Ndukaife, Justus C.4; Naik, Gururaj V.6; Nnanna, A. G. Agwu5; Kildishev, Alexander V.6; Shalaev, Vladimir M.6; 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 Calumet6 Purdue University
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.