Design of near-field plasmonic vortex with shifting based on metasurface in terahertz region

Zhen LI

doi:10.3969/j.issn.1005-5630.2020.05.010

Optical Instruments, Volume. 42, Issue 5, 63(2020)

Design of near-field plasmonic vortex with shifting based on metasurface in terahertz region

Zhen LI^1,2

¹Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China

²School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

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Figures & Tables(5)

Fig. 1. The schematic of the metasurface for structural parameters and vortex-center shifting

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Fig. 2. Schematic of vortex optics

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Fig. 3. Simulation of topological charge ±2 withs=1

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Fig. 4. Simulation of topological charge of ±1 ，θ₀=135° ，s=2

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Fig. 5. Electric field information of different turns

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Zhen LI. Design of near-field plasmonic vortex with shifting based on metasurface in terahertz region[J]. Optical Instruments, 2020, 42(5): 63

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Paper Information

Category: DESIGN AND RESEARCH

Received: Apr. 21, 2020

Accepted: --

Published Online: Jan. 6, 2021

The Author Email:

DOI:10.3969/j.issn.1005-5630.2020.05.010

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

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