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Sum-frequency and second-harmonic generation from plasmonic nonlinear nanoantennas
| Content Provider | Semantic Scholar |
|---|---|
| Author | Xiong, Xiaoyan Y. Z. Jiang, Li Chew, Weng Cho |
| Copyright Year | 2017 |
| Abstract | Plasmonic nanostructures that support surface plasmon (SP) resonance potentially provide a route for the development of nanoengineered nonlinear optical devices. In this work, second-order nonlinear light scattering, specifically sum-frequency generation (SFG) and second-harmonic generation (SHG), from plasmonic nanoantennas is modeled by the boundary element method (BEM). Far-field scattering patterns are compared with the results calculated by the Mie theory to validate the accuracy of the developed nonlinear solver. The SFG from a multi-resonant nanoantenna (MR-NA) and the SHG from a particle-in-cavity nanoantenna (PIC-NA) are analyzed by using the developed method. Enhancements of the scattering signals due to double-resonance of the MR-NA and gap plasmonic mode of the PIC-NA are observed. Unidirectional nonlinear radiation for the PIC-NA is realized. Moreover, its emission direction can be controlled by the location of the nanosphere. This work provides new theoretical tools and design guidelines for plasmonic nonlinear nanoantennas. |
| File Format | PDF HTM / HTML |
| DOI | 10.23919/URSIRSB.2017.8113162 |
| Alternate Webpage(s) | http://hub.hku.hk/bitstream/10722/247413/1/content.pdf |
| Alternate Webpage(s) | https://arxiv.org/pdf/1612.05904v1.pdf |
| Alternate Webpage(s) | https://doi.org/10.23919/URSIRSB.2017.8113162 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
