Anisotropic Second Harmonic Generation From Monocrystalline Gold Flakes
arXiv:2010.10982 · doi:10.1364/OL.413003
Abstract
Noble metals with well-defined crystallographic orientation constitute an appealing class of materials for controlling light-matter interactions on the nanoscale. Nonlinear optical processes, being particularly sensitive to anisotropy, are a natural and versatile probe of crystallinity in nano-optical devices. Here we study the nonlinear optical response of monocrystalline gold flakes, revealing a polarization dependence in second-harmonic generation from the {111} surface that is markedly absent in polycrystalline films. Apart from suggesting an approach for directional enhancement of nonlinear response in plasmonic systems, we anticipate that our findings can be used as a rapid and non-destructive method for characterization of crystal quality and orientation that may be of significant importance in future applications.
arXiv comment5 pages, 4 figures, color
References in corpus (10)
- Plasmonic Films Can Easily Be Better: Rules and Recipes
- Atomically flat single-crystalline gold nanostructures for plasmonic nanocircuitry
- In-situ diagnostics of the crystalline nature of single organic nanocrystals by nonlinear microscopy
- Plasmonics in Atomically-Thin Crystalline Silver Films
- Precise Determination of the Crystallographic Orientations in Single ZnS Nanowires by Second-Harmonic Generation Microscopy
- Unidirectional single-photon emission from germanium-vacancy zero-phonon lines: Deterministic emitter-waveguide interfacing at plasmonic hot spots
- Advanced engineering of single-crystal gold nanoantennas
- Mono-crystalline Gold Platelets: A High Quality Platform for Surface Plasmon Polaritons
- Nonclassical optical properties of mesoscopic gold
- Interference in edge-scattering from monocrystalline gold flakes
Cited by in corpus (6)
- Extremely confined gap plasmon modes: when nonlocality matters
- Roadmap on Nonlocality in Photonic Materials and Metamaterials
- Quantitative near-field characterization of surface plasmon polaritons on monocrystalline gold platelets
- Controlling field asymmetry in nanoscale gaps for second harmonic generation
- Nonlinear photoluminescence in gold thin films
- Nonlocal electrodynamics of two-dimensional anisotropic magneto-plasmons