Plasmonic evolution maps for planar metamaterials

Liyong Jiang; Jianli Jiang; Zebin Zhu; Guanghui Yuan; Ming Kang; Ze Xiang Shen

doi:doi:10.1364/PRJ.404355

Photonics Research, 2021, 9 (1): 01000073, Published Online: Apr. 1, 2021

Plasmonic evolution maps for planar metamaterials Download： 717次

Liyong Jiang ^1,4,*†Jianli Jiang ^1†Zebin Zhu ¹Guanghui Yuan ²Ming Kang ³Ze Xiang Shen ^2,5,*

Author Affiliations

¹ Institute of Micro-nano Photonics & Beam Steering, School of Science, Nanjing University of Science and Technology, Nanjing 210094, China

² Centre for Disruptive Photonic Technologies, The Photonics Institute, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore

³ College of Physics and Electronic Information Science, Tianjin Normal University, Tianjin 300387, China

⁴ e-mail: jly@njust.edu.cn

⁵ e-mail: zexiang@ntu.edu.sg

Figures & Tables

Fig. 1. Schematic diagram and SEM images of the (a), (b) CSRR and (c), (d) H-shaped complementary planar metamaterials. From Sample I to Sample VI, different numbers of splits are introduced and arranged in designed symmetry/asymmetry. Δx represents the horizontal displacement of the split from the center. The symmetry/asymmetry of the H-shaped air slit is modulated by introducing a vertical displacement Δy of the horizontal air slit shift along the y direction. The scale bars in the figure are all 500 nm.

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Fig. 2. Experimental and simulated reflection spectra of (a) Sample I, (b) Sample II, (c) Sample III, (d) Sample IV, (e) Sample V, and (f) Sample VI. The solid curve in each experimental spectrum serves as a guide for easier comparison.

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Fig. 3. Conventional mode analysis for Samples I–VI. (a), (d), (g), (j) Electric field distributions; (b), (e), (h), (k) charge distributions; (c), (f), (i), (l) current distributions. The big arrows serve as a guide to show the current directions at the metal/air surface. The symmetrically distributed currents in the plasmonic atom samples (I–III) are highlighted by green color, and the currents in the right atom of the plasmonic molecule samples (IV–VI) are highlighted by blue color.

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Fig. 4. Conventional mode analysis for three H-shaped complementary planar metamaterials. (a), (b) Experimental and simulated reflection spectra; (c) electric field distributions; (d) charge distributions; (e) current distributions. The symmetrically distributed currents are highlighted by green color.

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Fig. 5. Mode analysis based on PEMs for (a)–(d) Sample I and (e)–(h) Sample II. D, dipole-like; Q, quadrupole-like; H, hexapole-like; O, octopole-like charge distributions; SCD/SCQ/SCH/SCO, symmetrically coupled dipole-like/quadrupole-like/hexapole-like/octopole-like charge distributions; ASSCD/ASSCQ/ASSCH, antisymmetrically coupled SCD/SCQ/SCH modes.

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Fig. 6. Mode analysis based on PEMs for Sample II′.

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Fig. 7. Mode analysis based on PEMs for (a) Sample V and (b) Sample VI. The square and circle in (a) correspond to the positions of modes 2 and 3, respectively.

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Table1. Summarization of MEM for Plasmonic Atoms and Molecules

Type	Structural Operator	Mode Operator	Symmetry Dependency
Plasmonic atoms	Growth	Expansion^a	Asymmetrical
	Crossover	Preservation^b	Symmetrical
	Crossover	Mutation^b	Symmetrical
Plasmonic molecules	Group	Preservation^c	None
Plasmonic molecules	Group	Learning^a	Asymmetrical

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Liyong Jiang, Jianli Jiang, Zebin Zhu, Guanghui Yuan, Ming Kang, Ze Xiang Shen. Plasmonic evolution maps for planar metamaterials[J]. Photonics Research, 2021, 9(1): 01000073.

Plasmonic evolution maps for planar metamaterials Download： 717次

Fig. 2. Experimental and simulated reflection spectra of (a) Sample I, (b) Sample II, (c) Sample III, (d) Sample IV, (e) Sample V, and (f) Sample VI. The solid curve in each experimental spectrum serves as a guide for easier comparison.

Fig. 6. Mode analysis based on PEMs for Sample II′.

Fig. 7. Mode analysis based on PEMs for (a) Sample V and (b) Sample VI. The square and circle in (a) correspond to the positions of modes 2 and 3, respectively.

Table1. Summarization of MEM for Plasmonic Atoms and Molecules

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Plasmonic evolution maps for planar metamaterials Download： 717次

Fig. 2. Experimental and simulated reflection spectra of (a) Sample I, (b) Sample II, (c) Sample III, (d) Sample IV, (e) Sample V, and (f) Sample VI. The solid curve in each experimental spectrum serves as a guide for easier comparison.

Fig. 6. Mode analysis based on PEMs for Sample II′.

Fig. 7. Mode analysis based on PEMs for (a) Sample V and (b) Sample VI. The square and circle in (a) correspond to the positions of modes 2 and 3, respectively.

Table1. Summarization of MEM for Plasmonic Atoms and Molecules

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