期刊
ACS PHOTONICS
卷 5, 期 11, 页码 4222-4228出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.8b01227
关键词
plasmonics; Raman; nonlinear optics; near-field
类别
资金
- Canada Research Chairs Program
- NSERC Discovery Grant Program
Plasmonic enhancement has had remarkable success in optical coupling to the nanometer scale, enabling feats such as Raman spectroscopy with single molecule sensitivity. Here it is argued that much greater enhancements are possible in the near future by combining the gains of plasmonic resonances, directivity, subnanometer gaps; and permittivity near-zero materials. The pursuit of such extraordinary enhancements promises to bring new physics such as peering into the world of quantum optomechanics. It also promises new applications such as quantitative single molecule Raman spectroscopy and low photon number nonlinear optical switching. In addition, by pushing the limits of plasmonic enhancement, it is expected that the community will gain a greater appreciation of how physical phenomena such as nonlocality, surface scattering, and quantum tunneling each play a role in determining the ultimate performance.
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