Interdisk spacing effect on resonant properties of Ge disk lattices on Si substrates
Abstract The light reflection properties of Ge disk lattices on Si substrates are studied as a function of the disk height and the gap width between disks. The interdisk spacing effect is observed even at such large gap widths as 500 nm. The gap width decrease leads to the appearance of the reflecti...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-11867-5 |
| _version_ | 1818549811149799424 |
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| author | A. A. Shklyaev D. E. Utkin A. V. Tsarev S. A. Kuznetsov K. V. Anikin A. V. Latyshev |
| author_facet | A. A. Shklyaev D. E. Utkin A. V. Tsarev S. A. Kuznetsov K. V. Anikin A. V. Latyshev |
| author_sort | A. A. Shklyaev |
| collection | DOAJ |
| description | Abstract The light reflection properties of Ge disk lattices on Si substrates are studied as a function of the disk height and the gap width between disks. The interdisk spacing effect is observed even at such large gap widths as 500 nm. The gap width decrease leads to the appearance of the reflection minimum in the short wavelength region relative to one originated from the magnetic and electric dipole resonances in individual Ge disks, thereby essentially widening the antireflection properties. This minimum becomes significantly deeper at small gap widths. The observed behavior is associated with the features of the resonant fields around closely spaced disks according to numerical simulation data. The result shows the importance of using structures with geometrical parameters providing the short-wavelength minimum. This can essentially enhance their other resonant properties, which are widely used for applications, in particular, based on collective lattice resonances. |
| first_indexed | 2024-12-12T08:38:08Z |
| format | Article |
| id | doaj.art-673170ef38e1467386ca7cd0fe426362 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-12T08:38:08Z |
| publishDate | 2022-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-673170ef38e1467386ca7cd0fe4263622022-12-22T00:30:52ZengNature PortfolioScientific Reports2045-23222022-05-011211810.1038/s41598-022-11867-5Interdisk spacing effect on resonant properties of Ge disk lattices on Si substratesA. A. Shklyaev0D. E. Utkin1A. V. Tsarev2S. A. Kuznetsov3K. V. Anikin4A. V. Latyshev5Novosibirsk State UniversityNovosibirsk State UniversityNovosibirsk State UniversityNovosibirsk State UniversityRzhanov Institute of Semiconductor Physics SB RASNovosibirsk State UniversityAbstract The light reflection properties of Ge disk lattices on Si substrates are studied as a function of the disk height and the gap width between disks. The interdisk spacing effect is observed even at such large gap widths as 500 nm. The gap width decrease leads to the appearance of the reflection minimum in the short wavelength region relative to one originated from the magnetic and electric dipole resonances in individual Ge disks, thereby essentially widening the antireflection properties. This minimum becomes significantly deeper at small gap widths. The observed behavior is associated with the features of the resonant fields around closely spaced disks according to numerical simulation data. The result shows the importance of using structures with geometrical parameters providing the short-wavelength minimum. This can essentially enhance their other resonant properties, which are widely used for applications, in particular, based on collective lattice resonances.https://doi.org/10.1038/s41598-022-11867-5 |
| spellingShingle | A. A. Shklyaev D. E. Utkin A. V. Tsarev S. A. Kuznetsov K. V. Anikin A. V. Latyshev Interdisk spacing effect on resonant properties of Ge disk lattices on Si substrates Scientific Reports |
| title | Interdisk spacing effect on resonant properties of Ge disk lattices on Si substrates |
| title_full | Interdisk spacing effect on resonant properties of Ge disk lattices on Si substrates |
| title_fullStr | Interdisk spacing effect on resonant properties of Ge disk lattices on Si substrates |
| title_full_unstemmed | Interdisk spacing effect on resonant properties of Ge disk lattices on Si substrates |
| title_short | Interdisk spacing effect on resonant properties of Ge disk lattices on Si substrates |
| title_sort | interdisk spacing effect on resonant properties of ge disk lattices on si substrates |
| url | https://doi.org/10.1038/s41598-022-11867-5 |
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