Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime
Realizing electromagnetic transparency in the visible light regime and beyond is an important challenge in both fundamental electromagnetics and angular-independent spectral filters for 6G communication and military applications. A conventional way of achieving electromagnetic transparency is based...
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| Format: | Article |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9749272/ |
| _version_ | 1828300817905483776 |
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| author | Junjeong Park Sun K. Hong Haejun Chung |
| author_facet | Junjeong Park Sun K. Hong Haejun Chung |
| author_sort | Junjeong Park |
| collection | DOAJ |
| description | Realizing electromagnetic transparency in the visible light regime and beyond is an important challenge in both fundamental electromagnetics and angular-independent spectral filters for 6G communication and military applications. A conventional way of achieving electromagnetic transparency is based on Surface Plasmon Resonances (SPRs) of symmetric metallic spherical or cylindrical structures. However, symmetric objects have a constraint on their shape tunability, limiting them to visible wavelength applications. In this work, we address the limitation by designing floating nano-chips with a broken symmetry using a cluster of silver ellipsoids. We combine Bohren and Huffman analytic solutions and particle swarm optimization to accelerate the discovery of the optimum ellipsoid designs. The optimized nano-chips demonstrate clear angle-independent transparency at the 1450–1500nm wavelength window. This result is validated in full-wave Maxwell’s solution via three-dimensional finite-difference time-domain method. The proposed design method can be extended to electromagnetic applications that require a design and optimization of small objects (<inline-formula> <tex-math notation="LaTeX">$< \lambda /200$ </tex-math></inline-formula>) compared to their operating wavelength. |
| first_indexed | 2024-04-13T13:14:39Z |
| format | Article |
| id | doaj.art-f0d78c3b3b624f8da32db68d14e057e5 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-13T13:14:39Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-f0d78c3b3b624f8da32db68d14e057e52022-12-22T02:45:30ZengIEEEIEEE Access2169-35362022-01-0110404024040910.1109/ACCESS.2022.31650529749272Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared RegimeJunjeong Park0https://orcid.org/0000-0001-7104-8384Sun K. Hong1https://orcid.org/0000-0002-3794-3171Haejun Chung2https://orcid.org/0000-0001-8959-237XSchool of Electrical Engineering, Soongsil University, Seoul, South KoreaSchool of Electrical Engineering, Soongsil University, Seoul, South KoreaSchool of Electrical Engineering, Soongsil University, Seoul, South KoreaRealizing electromagnetic transparency in the visible light regime and beyond is an important challenge in both fundamental electromagnetics and angular-independent spectral filters for 6G communication and military applications. A conventional way of achieving electromagnetic transparency is based on Surface Plasmon Resonances (SPRs) of symmetric metallic spherical or cylindrical structures. However, symmetric objects have a constraint on their shape tunability, limiting them to visible wavelength applications. In this work, we address the limitation by designing floating nano-chips with a broken symmetry using a cluster of silver ellipsoids. We combine Bohren and Huffman analytic solutions and particle swarm optimization to accelerate the discovery of the optimum ellipsoid designs. The optimized nano-chips demonstrate clear angle-independent transparency at the 1450–1500nm wavelength window. This result is validated in full-wave Maxwell’s solution via three-dimensional finite-difference time-domain method. The proposed design method can be extended to electromagnetic applications that require a design and optimization of small objects (<inline-formula> <tex-math notation="LaTeX">$< \lambda /200$ </tex-math></inline-formula>) compared to their operating wavelength.https://ieeexplore.ieee.org/document/9749272/Finite-difference time-domain (FDTD) methodparticle swarm optimization (PSO)plasmon induced transparency |
| spellingShingle | Junjeong Park Sun K. Hong Haejun Chung Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime IEEE Access Finite-difference time-domain (FDTD) method particle swarm optimization (PSO) plasmon induced transparency |
| title | Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime |
| title_full | Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime |
| title_fullStr | Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime |
| title_full_unstemmed | Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime |
| title_short | Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime |
| title_sort | numerical demonstration of angle independent electromagnetic transparency in short wavelength infrared regime |
| topic | Finite-difference time-domain (FDTD) method particle swarm optimization (PSO) plasmon induced transparency |
| url | https://ieeexplore.ieee.org/document/9749272/ |
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