Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks
The effects of resonance interaction of plasmonic and photonic modes in hybrid metal-dielectric structures with square Al nanodisk lattices coupled with a Si waveguide layer were investigated using micro-photoluminescence (micro-PL) spectroscopy. As radiation sources, GeSi quantum dots were embedded...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-08-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/17/2422 |
| _version_ | 1797582069895790592 |
|---|---|
| author | Vladimir A. Zinovyev Zhanna V. Smagina Aigul F. Zinovieva Aleksei A. Bloshkin Anatoly V. Dvurechenskii Ekaterina E. Rodyakina Margarita V. Stepikhova Artem V. Peretokin Alexey V. Novikov |
| author_facet | Vladimir A. Zinovyev Zhanna V. Smagina Aigul F. Zinovieva Aleksei A. Bloshkin Anatoly V. Dvurechenskii Ekaterina E. Rodyakina Margarita V. Stepikhova Artem V. Peretokin Alexey V. Novikov |
| author_sort | Vladimir A. Zinovyev |
| collection | DOAJ |
| description | The effects of resonance interaction of plasmonic and photonic modes in hybrid metal-dielectric structures with square Al nanodisk lattices coupled with a Si waveguide layer were investigated using micro-photoluminescence (micro-PL) spectroscopy. As radiation sources, GeSi quantum dots were embedded in the waveguide. A set of narrow PL peaks superimposed on the broad bands were observed in the range of quantum dot emissions. At optimal parameters of Al nanodisks lattices, almost one order increasing of PL intensity was obtained. The experimental PL spectra are in good agreement with results of theoretical calculations. The realization of high-quality bound states in the continuum was confirmed by a comparative analysis of the experimental spectra and theoretical dispersion dependences. The results demonstrated the perspectives of these type structures for a flat band realization and supporting the slow light. |
| first_indexed | 2024-03-10T23:16:38Z |
| format | Article |
| id | doaj.art-a7afe1cee3c04c89b06f5e2691803e24 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T23:16:38Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-a7afe1cee3c04c89b06f5e2691803e242023-11-19T08:36:27ZengMDPI AGNanomaterials2079-49912023-08-011317242210.3390/nano13172422Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al NanodisksVladimir A. Zinovyev0Zhanna V. Smagina1Aigul F. Zinovieva2Aleksei A. Bloshkin3Anatoly V. Dvurechenskii4Ekaterina E. Rodyakina5Margarita V. Stepikhova6Artem V. Peretokin7Alexey V. Novikov8Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, RussiaRzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, RussiaRzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, RussiaRzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, RussiaRzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, RussiaRzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, RussiaInstitute for Physics of Microstructures of the Russian Academy of Sciences, 603950 Nizhny Novgorod, RussiaInstitute for Physics of Microstructures of the Russian Academy of Sciences, 603950 Nizhny Novgorod, RussiaInstitute for Physics of Microstructures of the Russian Academy of Sciences, 603950 Nizhny Novgorod, RussiaThe effects of resonance interaction of plasmonic and photonic modes in hybrid metal-dielectric structures with square Al nanodisk lattices coupled with a Si waveguide layer were investigated using micro-photoluminescence (micro-PL) spectroscopy. As radiation sources, GeSi quantum dots were embedded in the waveguide. A set of narrow PL peaks superimposed on the broad bands were observed in the range of quantum dot emissions. At optimal parameters of Al nanodisks lattices, almost one order increasing of PL intensity was obtained. The experimental PL spectra are in good agreement with results of theoretical calculations. The realization of high-quality bound states in the continuum was confirmed by a comparative analysis of the experimental spectra and theoretical dispersion dependences. The results demonstrated the perspectives of these type structures for a flat band realization and supporting the slow light.https://www.mdpi.com/2079-4991/13/17/2422photoluminescenceAl nanoparticlesplasmonicphotonic waveguide modesbound states in the continuum (BICs) |
| spellingShingle | Vladimir A. Zinovyev Zhanna V. Smagina Aigul F. Zinovieva Aleksei A. Bloshkin Anatoly V. Dvurechenskii Ekaterina E. Rodyakina Margarita V. Stepikhova Artem V. Peretokin Alexey V. Novikov Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks Nanomaterials photoluminescence Al nanoparticles plasmonic photonic waveguide modes bound states in the continuum (BICs) |
| title | Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks |
| title_full | Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks |
| title_fullStr | Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks |
| title_full_unstemmed | Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks |
| title_short | Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks |
| title_sort | emission enhancement of ge si quantum dots in hybrid structures with subwavelength lattice of al nanodisks |
| topic | photoluminescence Al nanoparticles plasmonic photonic waveguide modes bound states in the continuum (BICs) |
| url | https://www.mdpi.com/2079-4991/13/17/2422 |
| work_keys_str_mv | AT vladimirazinovyev emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT zhannavsmagina emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT aigulfzinovieva emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT alekseiabloshkin emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT anatolyvdvurechenskii emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT ekaterinaerodyakina emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT margaritavstepikhova emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT artemvperetokin emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks AT alexeyvnovikov emissionenhancementofgesiquantumdotsinhybridstructureswithsubwavelengthlatticeofalnanodisks |