Multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals
We experimentally studied unidirectional perfect absorbers with asymmetric sandwich structures composed of two thick metallic films with different thicknesses and a truncated symmetric photonic crystal (PC). Single-channel and multichannel near-perfect absorbers were obtained by adjusting period num...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2018-05-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5029897 |
| _version_ | 1818305368568102912 |
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| author | Guang Lu Liyong Cui Bin Liu Jin Li Feng Sun Shan Zhang Fen Liu Yanhui Li Tianlin Yang Guiqiang Du |
| author_facet | Guang Lu Liyong Cui Bin Liu Jin Li Feng Sun Shan Zhang Fen Liu Yanhui Li Tianlin Yang Guiqiang Du |
| author_sort | Guang Lu |
| collection | DOAJ |
| description | We experimentally studied unidirectional perfect absorbers with asymmetric sandwich structures composed of two thick metallic films with different thicknesses and a truncated symmetric photonic crystal (PC). Single-channel and multichannel near-perfect absorbers were obtained by adjusting period number of the PC. According to electromagnetic field intensity distributions at absorption wavelengths, the physical mechanism of near-perfect absorption derived from the coupling effect between optical Tamm state and Fabry-Pérot resonance. The unidirectional absorption phenomena were attributed to weak electric field distributions at absorption wavelengths for opposing directions of light incidence. The experimental values showed good agreement with theoretical results. |
| first_indexed | 2024-12-13T06:25:29Z |
| format | Article |
| id | doaj.art-1f31e55d3fbc48cea1e2142775aed04f |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-13T06:25:29Z |
| publishDate | 2018-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-1f31e55d3fbc48cea1e2142775aed04f2022-12-21T23:56:44ZengAIP Publishing LLCAIP Advances2158-32262018-05-0185055214055214-810.1063/1.5029897050805ADVMultichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystalsGuang Lu0Liyong Cui1Bin Liu2Jin Li3Feng Sun4Shan Zhang5Fen Liu6Yanhui Li7Tianlin Yang8Guiqiang Du9School of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaSchool of Space Science and Physics, Shandong University at Weihai, Weihai 264209, P. R. ChinaWe experimentally studied unidirectional perfect absorbers with asymmetric sandwich structures composed of two thick metallic films with different thicknesses and a truncated symmetric photonic crystal (PC). Single-channel and multichannel near-perfect absorbers were obtained by adjusting period number of the PC. According to electromagnetic field intensity distributions at absorption wavelengths, the physical mechanism of near-perfect absorption derived from the coupling effect between optical Tamm state and Fabry-Pérot resonance. The unidirectional absorption phenomena were attributed to weak electric field distributions at absorption wavelengths for opposing directions of light incidence. The experimental values showed good agreement with theoretical results.http://dx.doi.org/10.1063/1.5029897 |
| spellingShingle | Guang Lu Liyong Cui Bin Liu Jin Li Feng Sun Shan Zhang Fen Liu Yanhui Li Tianlin Yang Guiqiang Du Multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals AIP Advances |
| title | Multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals |
| title_full | Multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals |
| title_fullStr | Multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals |
| title_full_unstemmed | Multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals |
| title_short | Multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals |
| title_sort | multichannel unidirectional perfect absorbers on sandwich structures with truncated symmetric photonic crystals |
| url | http://dx.doi.org/10.1063/1.5029897 |
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