title: Linear and nonlinear optical characterization of aluminum nanoantennas.
abstract: We experimentally determine the order of multiphoton induced luminescence of aluminum nanoantennas fabricated on a nonconductive substrate using electron-beam lithography to be 2.11 (±0.10). Furthermore, we optically characterize these nanostructures via linear dark-field microscopy and nonlinear multiphoton laser excitation. We hereby observe different spectral response functions that can be seen as a splitting of peak positions when the antenna arm length is increased to Larm > 150 nm which has not yet been reported for aluminum nanostructures.
authors: Light Technology Institute (LTI), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.
authors: Patrick M
authors: PM
authors: Schwab
authors: Carola
authors: C
authors: Moosmann
authors: Matthias D
authors: MD
authors: Wissert
authors: Ekkehart W-G
authors: EW
authors: Schmidt
authors: Konstantin S
authors: KS
authors: Ilin
authors: Michael
authors: M
authors: Siegel
authors: Uli
authors: U
authors: Lemmer
authors: Hans-Jürgen
authors: HJ
authors: Eisler
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D004583:Electrons; D007834:Lasers; D008027:Light; D049449:Luminescence; D008853:Microscopy; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size
chemical_list: D000535:Aluminum