UNIGE document Scientific Article
previous document  unige:108075  next document
add to browser collection
Title

Localized plasmonic fields of nanoantennas enhance second harmonic generation from two-dimensional molybdenum disulfide

Authors
Forcherio, Gregory T.
Roper, D. Keith
Published in MRS Communications. 2018
Abstract Frequency-dependence and magnitude of second harmonic generation (SHG) from ~4 × 105 nm2 molybdenum disulfide (MoS2) monolayers was examined in presence of single 150 nm plasmonic gold@silica shell@core nanoantenna monomer and dimers. Quantitative agreement between discrete dipole approximation-calculated fields and measured SHG enhancements was found. SHG from MoS2 was enhanced up to 1.88 × upon deposition of a plasmonic nanoantenna-dimer with 170 nm gap, reaching maximal normalized SHG conversion efficiency of 0.0250%/W. Pump losses attributable to plasmonic damping, e.g., scattering and/or hot-electron injection into MoS2, were apparent. Linear and nonlinear optical activity of MoS2 and nanoantenna controls were compared with literature values.
Identifiers
Full text
Structures
Research group Groupe Wolf
Citation
(ISO format)
FORCHERIO, Gregory T. et al. Localized plasmonic fields of nanoantennas enhance second harmonic generation from two-dimensional molybdenum disulfide. In: MRS Communications, 2018. https://archive-ouverte.unige.ch/unige:108075

43 hits

1 download

Update

Deposited on : 2018-09-19

Export document
Format :
Citation style :