An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation
In this article, we present a miniaturized electromagnetic modulator based on electrically controllable spontaneous-emission-cancellation-like (SEC-like) effect in meta-molecule. The SEC-like meta-molecule with in-unit destructive interference interaction is constructed by two detuned side-coupled r...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1142792/full |
| _version_ | 1811167179253481472 |
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| author | Lei Gao Zhuofan Jiang Yongqiang Chen Yu Fang Xingzhi Wu Yaqiong Ding Yong Sun |
| author_facet | Lei Gao Zhuofan Jiang Yongqiang Chen Yu Fang Xingzhi Wu Yaqiong Ding Yong Sun |
| author_sort | Lei Gao |
| collection | DOAJ |
| description | In this article, we present a miniaturized electromagnetic modulator based on electrically controllable spontaneous-emission-cancellation-like (SEC-like) effect in meta-molecule. The SEC-like meta-molecule with in-unit destructive interference interaction is constructed by two detuned side-coupled resonators based on zero-index-metamaterial The subwavelength ZIM-based resonators, regarding as meta-atoms, are arranged symmetrically in a cut microstrip. A diode serving as an adjustable resistor is embedded in the gap of microstrip to inductively tune the interference of two ZIM-based meta-atoms. Numerical simulations indicate that the remarkable modulation on the SEC-like spectrum can be realized by changing the resistance from 9,000 Ω (unconnected) to 10 Ω (connected). Microwave experiments validate the electromagnetic modulation in three narrow bands on the SEC-like spectrum, and a peak modulation contrast of 52.1 dB on the transmission at 2.59 GHz is achieved through electric biasing. The results in this work may pave the way for our design to be applied in new integrated active devices and applications. |
| first_indexed | 2024-04-10T16:04:49Z |
| format | Article |
| id | doaj.art-6b74067f7eab47e9a28bc829e49a0512 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-10T16:04:49Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-6b74067f7eab47e9a28bc829e49a05122023-02-10T05:43:05ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-02-011110.3389/fphy.2023.11427921142792An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellationLei Gao0Zhuofan Jiang1Yongqiang Chen2Yu Fang3Xingzhi Wu4Yaqiong Ding5Yong Sun6Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, ChinaKey Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, ChinaKey Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, ChinaKey Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, ChinaKey Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, ChinaCollege of Science, University of Shanghai for Science and Technology, Shanghai, ChinaKey Laboratory of Advanced Micro-structure Materials, Ministry of Education, School of Physics Science and Engineering, Tongji University, Shanghai, ChinaIn this article, we present a miniaturized electromagnetic modulator based on electrically controllable spontaneous-emission-cancellation-like (SEC-like) effect in meta-molecule. The SEC-like meta-molecule with in-unit destructive interference interaction is constructed by two detuned side-coupled resonators based on zero-index-metamaterial The subwavelength ZIM-based resonators, regarding as meta-atoms, are arranged symmetrically in a cut microstrip. A diode serving as an adjustable resistor is embedded in the gap of microstrip to inductively tune the interference of two ZIM-based meta-atoms. Numerical simulations indicate that the remarkable modulation on the SEC-like spectrum can be realized by changing the resistance from 9,000 Ω (unconnected) to 10 Ω (connected). Microwave experiments validate the electromagnetic modulation in three narrow bands on the SEC-like spectrum, and a peak modulation contrast of 52.1 dB on the transmission at 2.59 GHz is achieved through electric biasing. The results in this work may pave the way for our design to be applied in new integrated active devices and applications.https://www.frontiersin.org/articles/10.3389/fphy.2023.1142792/fullelectromagnetic modulatorspontaneous emission cancellationzero-index-metamaterialsmeta-moleculePin diode |
| spellingShingle | Lei Gao Zhuofan Jiang Yongqiang Chen Yu Fang Xingzhi Wu Yaqiong Ding Yong Sun An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation Frontiers in Physics electromagnetic modulator spontaneous emission cancellation zero-index-metamaterials meta-molecule Pin diode |
| title | An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation |
| title_full | An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation |
| title_fullStr | An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation |
| title_full_unstemmed | An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation |
| title_short | An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation |
| title_sort | electromagnetic modulator based on electrically controllable meta molecule analogue to spontaneous emission cancellation |
| topic | electromagnetic modulator spontaneous emission cancellation zero-index-metamaterials meta-molecule Pin diode |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1142792/full |
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