Effects of different structural parameters and the medium environment on plasmonic lattice resonance formed by Ag nanospheres on SiO<sub>2</sub> nanopillar arrays

Xiaodan Huang; Chaogang Lou; Hao Zhang; Hua Yang

doi:10.3788/COL202018.033601

Chinese Optics Letters, Volume. 18, Issue 3, 033601(2020)

Effects of different structural parameters and the medium environment on plasmonic lattice resonance formed by Ag nanospheres on SiO₂ nanopillar arrays

Xiaodan Huang^1,2、*, Chaogang Lou^2、**, Hao Zhang^2,3, and Hua Yang²

Author Affiliations

¹Professional Basic Department, Changzhou Vocational Institute of Mechatronic Technology, Changzhou 213164, China

²Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China

³Public Resource Trading Center, Municipal Administrative Services Management Bureau, Lianyungang 222006, China

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Figures & Tables(6)

Fig. 1. Schematic of the periodic arrays with Ag nanospheres on ${SiO}_{2}$ nanopillars that sit on a quartz substrate.

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Fig. 2. (a) Simulated transmittance and (b) extinction cross section of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays with different diameters of 60, 120, 180, 240, and 360 nm, respectively. (c) The electric field intensity on the x−y plane through the center of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays with different diameters with the same color bar. ( $P = 450 nm$ , $D_{Ag} = 120 nm$ , $n = 1$ .)

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Fig. 3. (a) The simulated transmittance of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays with different Ag nanospheres’ diameters of 80, 100, 120, 140, and 160 nm, respectively. (b) The transmittance of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays as a function of Ag nanospheres’ diameter ( $D_{Ag}$ ) and the wavelength, which is plotted in 3D format. (c) The PLR (corresponding to the minimal transmittance) wavelength plotted versus Ag nanospheres’ diameter. ( $P = 450 nm$ , $D_{Si O 2} = 120 nm$ , $n = 1$ .)

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Fig. 4. Simulated extinction cross section of a single Ag nanosphere with different diameters of 80, 100, 120, 140, and 160 nm on a ${SiO}_{2}$ nanopillar that sits on a quartz substrate, respectively. ( $D_{Si O 2} = 120 nm$ , $n = 1$ .)

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Fig. 5. (a) The simulated transmittance of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays at different periods of 400, 450, 500, 550, and 600 nm. (b) The transmittance of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays as a function of the arrays’ period ( $P$ ) and the wavelength, which is plotted in 3D format. (c) The PLR wavelength plotted versus the arrays’ period. ( $D_{Ag} = D_{Si O 2} = 120 nm$ , $n = 1$ .)

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$(a) The simulated transmittance of Ag nanospheres on SiO2 nanopillar arrays in different media environments. (b) The transmittance of Ag nanospheres on SiO2 nanopillar arrays as a function of the refractive index (n) of the media environment and the wavelength, which is plotted in 3D format. (c) The PLR wavelength plotted versus the refractive index of the media environment. (DAg=DSiO2=120 nm, P=450 nm.)$

Fig. 6. (a) The simulated transmittance of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays in different media environments. (b) The transmittance of Ag nanospheres on ${SiO}_{2}$ nanopillar arrays as a function of the refractive index ( $n$ ) of the media environment and the wavelength, which is plotted in 3D format. (c) The PLR wavelength plotted versus the refractive index of the media environment. ( $D_{Ag} = D_{Si O 2} = 120 nm$ , $P = 450 nm$ .)

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Xiaodan Huang, Chaogang Lou, Hao Zhang, Hua Yang, "Effects of different structural parameters and the medium environment on plasmonic lattice resonance formed by Ag nanospheres on SiO₂ nanopillar arrays," Chin. Opt. Lett. 18, 033601 (2020)

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Paper Information

Category: Nanophotonics

Received: Sep. 30, 2019

Accepted: Dec. 11, 2019

Published Online: Feb. 19, 2020

The Author Email: Xiaodan Huang (hxd@seu.edu.cn), Chaogang Lou (lcg@seu.edu.cn)

DOI:10.3788/COL202018.033601

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology