Influence of Lattice Perturbation on Fano Resonance Properties of Nanohole Metasurface

Ying Chen; Meijie Li; Jiankun Wang; Meng Zhao

doi:10.3788/AOS202242.1524001

Acta Optica Sinica, Volume. 42, Issue 15, 1524001(2022)

Influence of Lattice Perturbation on Fano Resonance Properties of Nanohole Metasurface

Ying Chen^*, Meijie Li, Jiankun Wang, and Meng Zhao

Hebei Province Key Laboratory of Test/Measurement Technology and Instrument, School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, Hebei , China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(8)

Fig. 1. Model characterization of proposed all-dielectric metasurface. (a) Schematic diagram of all-dielectric nanohole array metasurface with symmetry-broken square lattice; (b) schematic diagram of unit cell; (c) top view of unit cell (dashed box represents reduced area of square hole)

Download full size

Fig. 2. Comparison of reflectance spectra and fitting curves. (a) Comparison of reflection spectra of proposed metasurface when $r = 0 n m$ under excitation of $x ‑$ and $y$ -polarized waves; (b) comparison of reflection spectra of proposed metasurface when $r = 80 n m$ under excitation of $x ‑$ and $y$ -polarized waves; (c) fitting curves of FR1-FR5

Download full size

Fig. 3. Symmetry related to proposed metasurface when $r = 0 n m$ . (a) Symmetrical properties of square lattice unit cell; (b) mode field symmetry of double degenerate mode and non-degenerate mode; (c) mode field symmetry of $x$ -polarized plane wave $e_{x}$ and $y$ -polarized plane wave $e_{y}$ (two "+" areas are symmetrical, and two "-" areas are antisymmetric)

Download full size

Fig. 4. Near field distributions of FR1 and FR2 and conceptual depiction of their resonant modes. (a)(b) Magnetic (electric) field distribution $| H |$ ( $| E |$ ) of FR1 (FR2) at $x o y$ cross section under $x$ -polarized wave excitation; (c)(d) magnetic (electric) field distribution $| H |$ ( $| E |$ ) of FR1 (FR2) at $x o y$ cross section under $y$ -polarized wave excitation; (e)(f) electric (magnetic) field distribution $| E |$ ( $| H |$ ) of FR1 (FR2) at $x o z$ ( $y o z$ ) cross section under $x$ -polarized wave excitation; (g)(h) electric (magnetic) field distribution $| E |$ ( $| H |$ ) of FR1(FR2) at $y o z$ ( $x o z$ ) cross section under $y$ -polarized wave excitation; (i)(j) conceptual depiction of MD1 and ED

Download full size

Fig. 5. Near field distributions of FR3, FR4, and FR5 and conceptual depiction of their resonant modes. (a)-(c) Electric field distributions $| E |$ of FR3, FR4, and FR5 at $x o y$ cross section; (d)-(f) magnetic field distributions $| H |$ of FR3, FR4, and FR5 at $y o z$ cross section; (g)-(i) conceptual depiction of TD1, TD2, and MD2

Download full size

Fig. 6. Influence of fundamental parameters on resonant position. (a) Influence of $b$ on resonant position; (b) influence of $P$ on resonant position; (c) influence of $a$ on resonant position; (d) influence of $t$ on resonant position; (e) influence of $l$ on resonant position

Download full size

Fig. 7. Influence of lattice-perturbed parameters on resonant $Q$ factor and local electric field intensity. (a) Reflectance spectra of FR1-FR5 varying with $r$ ; (b) resonant $Q$ factors of FR3, FR4, and FR5 varying with $r$ ; (c) local electric field intensity of FR3, FR4, and FR5 varying with $r$

Download full size

Table 1. Main parameters describing resonant properties of FR1-FR5
View table
Table 1. Main parameters describing resonant properties of FR1-FR5
$λ$ /nm $ω_{0} / e V$ $τ / n m$ $F$ $q$ Q
$1065.85$ 1.163 0.20 0.229 1.929 5327
$1082.88$ 1.145 0.14 0.252 1.488 7719
$1207.13$ 1.027 3.08 0.243 -1.495 392
$1506.97$ 0.823 7.35 0.242 1.768 205
$1580.24$ 0.785 0.63 0.299 1.722 2508

Tools

Get Citation

Copy Citation Text

Ying Chen, Meijie Li, Jiankun Wang, Meng Zhao. Influence of Lattice Perturbation on Fano Resonance Properties of Nanohole Metasurface[J]. Acta Optica Sinica, 2022, 42(15): 1524001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites