All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurface
In this paper, we theoretically and experimentally demonstrated photothermal nonlinearities of both forward and backward scattering intensities from quasi-perfect absorbing silicon-based metasurface with only λ/7 thickness. The metasurface is efficiently heated up by photothermal effect under laser...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-12-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2022-0597 |
| _version_ | 1826963986176802816 |
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| author | Nishida Kentaro Sasai Koki Xu Rongyang Yen Te-Hsin Tang Yu-Lung Takahara Junichi Chu Shi-Wei |
| author_facet | Nishida Kentaro Sasai Koki Xu Rongyang Yen Te-Hsin Tang Yu-Lung Takahara Junichi Chu Shi-Wei |
| author_sort | Nishida Kentaro |
| collection | DOAJ |
| description | In this paper, we theoretically and experimentally demonstrated photothermal nonlinearities of both forward and backward scattering intensities from quasi-perfect absorbing silicon-based metasurface with only λ/7 thickness. The metasurface is efficiently heated up by photothermal effect under laser irradiation, which in turn modulates the scattering spectra via thermo-optical effect. Under a few milliwatt continuous-wave excitation at the resonance wavelength of the metasurface, backward scattering cross-section doubles, and forward scattering cross-section reduces to half. Our study opens up the all-optical dynamical control of the scattering directionality, which would be applicable to silicon photonic devices. |
| first_indexed | 2024-04-10T17:23:04Z |
| format | Article |
| id | doaj.art-bb508fc6884a40cbabe820895ed594da |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2025-02-18T02:48:51Z |
| publishDate | 2022-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-bb508fc6884a40cbabe820895ed594da2024-11-25T11:19:09ZengDe GruyterNanophotonics2192-86142022-12-0112113914610.1515/nanoph-2022-0597All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurfaceNishida Kentaro0Sasai Koki1Xu Rongyang2Yen Te-Hsin3Tang Yu-Lung4Takahara Junichi5Chu Shi-Wei6Department of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei10617, TaiwanGraduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, JapanGraduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, JapanDepartment of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei10617, TaiwanDepartment of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei10617, TaiwanGraduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, JapanDepartment of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei10617, TaiwanIn this paper, we theoretically and experimentally demonstrated photothermal nonlinearities of both forward and backward scattering intensities from quasi-perfect absorbing silicon-based metasurface with only λ/7 thickness. The metasurface is efficiently heated up by photothermal effect under laser irradiation, which in turn modulates the scattering spectra via thermo-optical effect. Under a few milliwatt continuous-wave excitation at the resonance wavelength of the metasurface, backward scattering cross-section doubles, and forward scattering cross-section reduces to half. Our study opens up the all-optical dynamical control of the scattering directionality, which would be applicable to silicon photonic devices.https://doi.org/10.1515/nanoph-2022-0597mie resonancenanophotonicsoptical nonlinearityphotothermal effectsilicon nanostructure |
| spellingShingle | Nishida Kentaro Sasai Koki Xu Rongyang Yen Te-Hsin Tang Yu-Lung Takahara Junichi Chu Shi-Wei All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurface Nanophotonics mie resonance nanophotonics optical nonlinearity photothermal effect silicon nanostructure |
| title | All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurface |
| title_full | All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurface |
| title_fullStr | All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurface |
| title_full_unstemmed | All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurface |
| title_short | All-optical scattering control in an all-dielectric quasi-perfect absorbing Huygens’ metasurface |
| title_sort | all optical scattering control in an all dielectric quasi perfect absorbing huygens metasurface |
| topic | mie resonance nanophotonics optical nonlinearity photothermal effect silicon nanostructure |
| url | https://doi.org/10.1515/nanoph-2022-0597 |
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