Electromechanically Rotatable Cross-Shaped Mid-IR Metamaterial
We present an electromechanically rotatable infrared (IR) cross-shaped metamaterial (CSM) in the mid-IR wavelength range. The CSM configuration is composed of double gold layers with cross-shaped nanostructures. To investigate the fano-resonance within CSM nanostructures, the aspect ratios and lengt...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/6/431 |
| _version_ | 1797566774351233024 |
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| author | Jitong Zhong Yu-Sheng Lin |
| author_facet | Jitong Zhong Yu-Sheng Lin |
| author_sort | Jitong Zhong |
| collection | DOAJ |
| description | We present an electromechanically rotatable infrared (IR) cross-shaped metamaterial (CSM) in the mid-IR wavelength range. The CSM configuration is composed of double gold layers with cross-shaped nanostructures. To investigate the fano-resonance within CSM nanostructures, the aspect ratios and length ratios of CSM are compared and discussed. The electromagnetic responses exhibit the characteristics of large tuning range, tunable broad and narrow bandwidths. By properly tailoring the aspect ratio of CSM, the resonance can be tuned with bidirectional tuning in the range of 650 nm. CSM with different length ratios exhibit narrowband resonances around the wavelength of 4.6 μm and broadband resonances in the wavelength range of 5.0 μm to 6.5 μm. These characteristics of CSM with different aspect ratios and length ratios could be potentially used in IR narrowband and broadband filter. To further increase the flexibility of proposed electromechanically rotatable CSM, an actively tunable narrowband and broadband filter in the mid-IR wavelength range is performed. This study provides a unique approach to realizing an IR filter, with high flexibility. |
| first_indexed | 2024-03-10T19:31:57Z |
| format | Article |
| id | doaj.art-03f130ac017d40f3bffebe8acefb93a2 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T19:31:57Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-03f130ac017d40f3bffebe8acefb93a22023-11-20T02:02:42ZengMDPI AGCrystals2073-43522020-05-0110643110.3390/cryst10060431Electromechanically Rotatable Cross-Shaped Mid-IR MetamaterialJitong Zhong0Yu-Sheng Lin1State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510275, ChinaWe present an electromechanically rotatable infrared (IR) cross-shaped metamaterial (CSM) in the mid-IR wavelength range. The CSM configuration is composed of double gold layers with cross-shaped nanostructures. To investigate the fano-resonance within CSM nanostructures, the aspect ratios and length ratios of CSM are compared and discussed. The electromagnetic responses exhibit the characteristics of large tuning range, tunable broad and narrow bandwidths. By properly tailoring the aspect ratio of CSM, the resonance can be tuned with bidirectional tuning in the range of 650 nm. CSM with different length ratios exhibit narrowband resonances around the wavelength of 4.6 μm and broadband resonances in the wavelength range of 5.0 μm to 6.5 μm. These characteristics of CSM with different aspect ratios and length ratios could be potentially used in IR narrowband and broadband filter. To further increase the flexibility of proposed electromechanically rotatable CSM, an actively tunable narrowband and broadband filter in the mid-IR wavelength range is performed. This study provides a unique approach to realizing an IR filter, with high flexibility.https://www.mdpi.com/2073-4352/10/6/431electromechanicallyrotatabilitymetamaterialsmulti-functionalitiesIR filter |
| spellingShingle | Jitong Zhong Yu-Sheng Lin Electromechanically Rotatable Cross-Shaped Mid-IR Metamaterial Crystals electromechanically rotatability metamaterials multi-functionalities IR filter |
| title | Electromechanically Rotatable Cross-Shaped Mid-IR Metamaterial |
| title_full | Electromechanically Rotatable Cross-Shaped Mid-IR Metamaterial |
| title_fullStr | Electromechanically Rotatable Cross-Shaped Mid-IR Metamaterial |
| title_full_unstemmed | Electromechanically Rotatable Cross-Shaped Mid-IR Metamaterial |
| title_short | Electromechanically Rotatable Cross-Shaped Mid-IR Metamaterial |
| title_sort | electromechanically rotatable cross shaped mid ir metamaterial |
| topic | electromechanically rotatability metamaterials multi-functionalities IR filter |
| url | https://www.mdpi.com/2073-4352/10/6/431 |
| work_keys_str_mv | AT jitongzhong electromechanicallyrotatablecrossshapedmidirmetamaterial AT yushenglin electromechanicallyrotatablecrossshapedmidirmetamaterial |