Light matter interaction in van der Waals heterostructures with Mie voids
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arXiv
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| Hauptverfasser: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915684378738688 |
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| author | Lu, Zhuoyuan Koshelev, Kirill Tonkaev, Pavel Chen, Ziyu Liu, Dawei Yang, Wenkai Kivshar, Yuri Lu, Yuerui |
| author_facet | Lu, Zhuoyuan Koshelev, Kirill Tonkaev, Pavel Chen, Ziyu Liu, Dawei Yang, Wenkai Kivshar, Yuri Lu, Yuerui |
| contents | Recently introduced concept of Mie voids allows to enhance the field localization inside air cavities embedded in high-index materials. Mie voids provide an alternative approach to conventional dielectric resonators that confine optical fields within bulk high-index materials. Building on this concept, here we present a hybrid photonic platform that integrates monolayer WS2 with Mie void resonators patterned in a high-index Bi2Te3 substrate. By carefully aligning the dipolar void resonance with the excitonic transition of WS2, we achieve substantially enhanced photoluminescence and second-harmonic generation. Far-field imaging of the harmonic fields reveals spatially resolved hotspots that directly map localized resonant modes, with their positions tunable by cavity geometry and pump wavelength. This approach enables real-space control of nonlinear emission at the single-resonator level, offering a robust and reconfigurable platform for next-generation nonlinear photonics and surface-enhanced optical sensing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_16198 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Light matter interaction in van der Waals heterostructures with Mie voids Lu, Zhuoyuan Koshelev, Kirill Tonkaev, Pavel Chen, Ziyu Liu, Dawei Yang, Wenkai Kivshar, Yuri Lu, Yuerui Optics Recently introduced concept of Mie voids allows to enhance the field localization inside air cavities embedded in high-index materials. Mie voids provide an alternative approach to conventional dielectric resonators that confine optical fields within bulk high-index materials. Building on this concept, here we present a hybrid photonic platform that integrates monolayer WS2 with Mie void resonators patterned in a high-index Bi2Te3 substrate. By carefully aligning the dipolar void resonance with the excitonic transition of WS2, we achieve substantially enhanced photoluminescence and second-harmonic generation. Far-field imaging of the harmonic fields reveals spatially resolved hotspots that directly map localized resonant modes, with their positions tunable by cavity geometry and pump wavelength. This approach enables real-space control of nonlinear emission at the single-resonator level, offering a robust and reconfigurable platform for next-generation nonlinear photonics and surface-enhanced optical sensing. |
| title | Light matter interaction in van der Waals heterostructures with Mie voids |
| topic | Optics |
| url | https://arxiv.org/abs/2512.16198 |