Ultrafast Plasmonic Control of Second Harmonic Generation
- Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computational Sciences and Engineering Division
- Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy; Univ. of Virginia, Charlottesville, VA (United States). Dept. of Physics
- Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computational Sciences and Engineering Division
Efficient frequency conversion techniques are crucial to the development of plasmonic metasurfaces for information processing and signal modulation. In principle, nanoscale electric-field confinement in nonlinear materials enables higher harmonic conversion efficiencies per unit volume than those attainable in bulk materials. Here we demonstrate efficient second-harmonic generation (SHG) in a serrated nanogap plasmonic geometry that generates steep electric field gradients on a dielectric metasurface. An ultrafast control pulse is used to control plasmon-induced electric fields in a thin-film material with inversion symmetry that, without plasmonic enhancement, does not exhibit an even-order nonlinear optical response. The temporal evolution of the plasmonic near-field is characterized with ~100 as resolution using a novel nonlinear interferometric technique. The serrated nanogap is a unique platform in which to investigate optically controlled, plasmonically enhanced harmonic generation in dielectric materials on an ultrafast time scale. Lastly, this metamaterial geometry can also be readily extended to all-optical control of other nonlinear phenomena, such as four-wave mixing and sum- and difference-frequency generation, in a wide variety of dielectric materials.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF); USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725; FG02-01ER45916
- OSTI ID:
- 1364273
- Journal Information:
- ACS Photonics, Vol. 3, Issue 8; ISSN 2330-4022
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Nanofocusing in SOI-based hybrid plasmonic metal slot waveguides
|
journal | January 2018 |
Fano Resonance on Nanostructured Lithium Niobate for Highly Efficient and Tunable Second Harmonic Generation
|
journal | January 2019 |
ALD assisted nanoplasmonic slot waveguide for on-chip enhanced Raman spectroscopy
|
journal | November 2018 |
Similar Records
Resonantly enhanced second-harmonic generation using III–V semiconductor all-dielectric metasurfaces
Dynamically tunable second-harmonic generation using hybrid nanostructures incorporating phase-change chalcogenides