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Updated: Jun 5, 2025
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Trapping of Micro Particles in Nanoplasmonic Optical Lattice
Published on: September 5, 2017
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Temporally deuterogenic plasmonic vortices
Xinyao Yuan1, Quan Xu1, Yuanhao Lang1
1Center for Terahertz Waves, College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education of China), Tianjin University, Tianjin 300072, China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
Researchers discovered a new type of plasmonic vortex that exists only in the time domain. This temporally deuterogenic vortex offers novel ways to control light-matter interactions and optical forces in plasmonics.
Area of Science:
- Plasmonics
- Optical Physics
- Nanophotonics
Background:
- Orbital angular momentum (OAM) and plasmonic vortices have gained significant attention in plasmonics.
- Plasmonic vortices enable the study of spin-orbit coupling and light-matter interactions.
- Frequency-domain characterizations often lack detailed information on plasmonic vortex dynamics.
Purpose of the Study:
- To demonstrate an exotic spin-orbit coupling phenomenon.
- To investigate and verify a novel temporally deuterogenic vortex mode.
- To explore new strategies for optical force manipulation using plasmonic vortices.
Main Methods:
- Theoretical investigation of spatiotemporal vortex evolution.
- Experimental verification of the temporally deuterogenic vortex mode.
- Analysis of destructive interference in the intensity field.
Main Results:
- Demonstration of a temporally deuterogenic vortex mode, observable only in the time domain.
- Observation of destructive interference of the vortex in the intensity field.
- Tailorable spatiotemporal evolution of the vortex through design and incident beams.
Conclusions:
- Extended fundamental understanding of plasmonic spin-orbit coupling.
- Introduced a unique optical force manipulation strategy.
- Potential to advance plasmonic research and applications.
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