Vertical split-ring resonator based anomalous beam steering with high extinction ratio

Wei-Lun Hsu; Pin Chieh Wu; Jia-Wern Chen; Ting-Yu Chen; Bo Han Cheng; Wei Ting Chen; Yao-Wei Huang; Chun Yen Liao; Greg Sun; Din Ping Tsai

doi:10.1038/srep11226

Vertical split-ring resonator based anomalous beam steering with high extinction ratio

Wei-Lun Hsu
, Pin Chieh Wu
, Jia-Wern Chen
, Ting-Yu Chen
, Bo Han Cheng
, Wei Ting Chen
, Yao-Wei Huang
, Chun Yen Liao
, Greg Sun
, Din Ping Tsai^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

56 Citations (Scopus)

30 Downloads (CityUHK Scholars)

Abstract

Metasurfaces created artificially with metal nanostructures that are patterned on surfaces of different media have shown to possess "unusual" abilities to manipulate light. Limited by nanofabrication difficulties, so far most reported works have been based on 2D metal structures. We have recently developed an advanced e-beam process that allowed for the deposition of 3D nanostructures, namely vertical split-ring resonators (VSRRs), which opens up another degree of freedom in the metasurface design. Here we explore the functionality of beam steering with phase modulation by tuning only the vertical dimension of the VSRRs and show that anomalous steering reflection of a wide range of angles can be accomplished with high extinction ratio using the finite-difference-time-domain simulation. We also demonstrate that metasurfaces made of 3D VSRRs can be made with roughly half of the footprint compared to that of 2D nano-rods, enabling high density integration of metal nanostructures.

Original language	English
Article number	11226
Journal	Scientific Reports
Volume	5
DOIs	https://doi.org/10.1038/srep11226
Publication status	Published - 8 Jun 2015
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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title = "Vertical split-ring resonator based anomalous beam steering with high extinction ratio",

abstract = "Metasurfaces created artificially with metal nanostructures that are patterned on surfaces of different media have shown to possess {"}unusual{"} abilities to manipulate light. Limited by nanofabrication difficulties, so far most reported works have been based on 2D metal structures. We have recently developed an advanced e-beam process that allowed for the deposition of 3D nanostructures, namely vertical split-ring resonators (VSRRs), which opens up another degree of freedom in the metasurface design. Here we explore the functionality of beam steering with phase modulation by tuning only the vertical dimension of the VSRRs and show that anomalous steering reflection of a wide range of angles can be accomplished with high extinction ratio using the finite-difference-time-domain simulation. We also demonstrate that metasurfaces made of 3D VSRRs can be made with roughly half of the footprint compared to that of 2D nano-rods, enabling high density integration of metal nanostructures.",

author = "Wei-Lun Hsu and Wu, \{Pin Chieh\} and Jia-Wern Chen and Ting-Yu Chen and Cheng, \{Bo Han\} and Chen, \{Wei Ting\} and Yao-Wei Huang and Liao, \{Chun Yen\} and Greg Sun and Tsai, \{Din Ping\}",

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T1 - Vertical split-ring resonator based anomalous beam steering with high extinction ratio

AU - Hsu, Wei-Lun

AU - Wu, Pin Chieh

AU - Chen, Jia-Wern

AU - Chen, Ting-Yu

AU - Cheng, Bo Han

AU - Chen, Wei Ting

AU - Huang, Yao-Wei

AU - Liao, Chun Yen

AU - Sun, Greg

AU - Tsai, Din Ping

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2015/6/8

Y1 - 2015/6/8

N2 - Metasurfaces created artificially with metal nanostructures that are patterned on surfaces of different media have shown to possess "unusual" abilities to manipulate light. Limited by nanofabrication difficulties, so far most reported works have been based on 2D metal structures. We have recently developed an advanced e-beam process that allowed for the deposition of 3D nanostructures, namely vertical split-ring resonators (VSRRs), which opens up another degree of freedom in the metasurface design. Here we explore the functionality of beam steering with phase modulation by tuning only the vertical dimension of the VSRRs and show that anomalous steering reflection of a wide range of angles can be accomplished with high extinction ratio using the finite-difference-time-domain simulation. We also demonstrate that metasurfaces made of 3D VSRRs can be made with roughly half of the footprint compared to that of 2D nano-rods, enabling high density integration of metal nanostructures.

AB - Metasurfaces created artificially with metal nanostructures that are patterned on surfaces of different media have shown to possess "unusual" abilities to manipulate light. Limited by nanofabrication difficulties, so far most reported works have been based on 2D metal structures. We have recently developed an advanced e-beam process that allowed for the deposition of 3D nanostructures, namely vertical split-ring resonators (VSRRs), which opens up another degree of freedom in the metasurface design. Here we explore the functionality of beam steering with phase modulation by tuning only the vertical dimension of the VSRRs and show that anomalous steering reflection of a wide range of angles can be accomplished with high extinction ratio using the finite-difference-time-domain simulation. We also demonstrate that metasurfaces made of 3D VSRRs can be made with roughly half of the footprint compared to that of 2D nano-rods, enabling high density integration of metal nanostructures.

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U2 - 10.1038/srep11226

DO - 10.1038/srep11226

M3 - RGC 21 - Publication in refereed journal

C2 - 26054048

SN - 2045-2322

VL - 5

JO - Scientific Reports

JF - Scientific Reports

M1 - 11226

ER -

Vertical split-ring resonator based anomalous beam steering with high extinction ratio

Abstract

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