Journal
JOURNAL OF OPTICS
Volume 24, Issue 8, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/2040-8986/ac7d5f
Keywords
surface plasmon polaritons; spoof surface plasmon polaritons; optical vortices; plasmonic tweezers
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Funding
- National Natural Science Foundation of China [11874102, 12174047]
- Sichuan Province Science and Technology Support Program [2020JDRC0006]
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This review summarizes the fundamental concepts of plasmonic vortices and highlights recent advances in the generation and applications of plasmonic vortices at lightwave, microwave, and Terahertz frequencies.
Surface plasmon polaritons (SPPs), surface electromagnetic waves propagating along metal-dielectric interfaces, have found numerous applications in integrated photonic devices, optical storage, and optical sensing, etc. In recent years, there has been a surge of interest in the fundamental and applications of SPPs carrying orbital angular momentum, namely SPP vortices or plasmonic vortices. In this review, we summarize the fundamental concepts of plasmonic vortices, and highlight recent advances in the generation and applications of plasmonic vortices, from SPPs at lightwave frequencies to spoof SPPs at microwave and Terahertz frequencies.
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