Silicon nanoantennas for tailoring the optical properties of MoS2 monolayers
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arXiv
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| Autori principali: | , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912722696798208 |
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| author | Katrisioti, Danae Wiecha, Peter R. Cuche, Aurélien Psilodimitrakopoulos, Sotiris Larrieu, Guilhem Müller, Jonas Larrey, Vincent Urbaszek, Bernhard Marie, Xavier Stratakis, Emmanuel Kioseoglou, George Paillard, Vincent Poumirol, Jean-Marie Paradisanos, Ioannis |
| author_facet | Katrisioti, Danae Wiecha, Peter R. Cuche, Aurélien Psilodimitrakopoulos, Sotiris Larrieu, Guilhem Müller, Jonas Larrey, Vincent Urbaszek, Bernhard Marie, Xavier Stratakis, Emmanuel Kioseoglou, George Paillard, Vincent Poumirol, Jean-Marie Paradisanos, Ioannis |
| contents | Silicon-based dielectric nanoantennas provide an effective platform for engineering light-matter interactions in van der Waals semiconductors. Here, we demonstrate near-field coupling between monolayer MoS2 and silicon nanoantennas arranged in hexagonal lattices with tunable geometric parameters, leading to a three-fold enhancement in photoluminescence and an excitation-wavelength-dependent emission that aligns with Mie-resonant modes. Raman spectroscopy reveals an up to 8-fold enhancement in the vibrational modes of MoS2, while second-harmonic generation exhibits a 20 to 30-fold increase in efficiency, closely correlating with the presence of the underlying nanoantennas. Our experiments and simulations quantify the tunable benefits of the near-field interactions, taking into account thin-film interference and strain-induced effects. Our findings present dielectric nanoantennas as a promising platform for tailoring linear and nonlinear optical properties in 2D materials, with potential applications in nanophotonic devices and integrated photonics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_03264 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Silicon nanoantennas for tailoring the optical properties of MoS2 monolayers Katrisioti, Danae Wiecha, Peter R. Cuche, Aurélien Psilodimitrakopoulos, Sotiris Larrieu, Guilhem Müller, Jonas Larrey, Vincent Urbaszek, Bernhard Marie, Xavier Stratakis, Emmanuel Kioseoglou, George Paillard, Vincent Poumirol, Jean-Marie Paradisanos, Ioannis Optics Materials Science Silicon-based dielectric nanoantennas provide an effective platform for engineering light-matter interactions in van der Waals semiconductors. Here, we demonstrate near-field coupling between monolayer MoS2 and silicon nanoantennas arranged in hexagonal lattices with tunable geometric parameters, leading to a three-fold enhancement in photoluminescence and an excitation-wavelength-dependent emission that aligns with Mie-resonant modes. Raman spectroscopy reveals an up to 8-fold enhancement in the vibrational modes of MoS2, while second-harmonic generation exhibits a 20 to 30-fold increase in efficiency, closely correlating with the presence of the underlying nanoantennas. Our experiments and simulations quantify the tunable benefits of the near-field interactions, taking into account thin-film interference and strain-induced effects. Our findings present dielectric nanoantennas as a promising platform for tailoring linear and nonlinear optical properties in 2D materials, with potential applications in nanophotonic devices and integrated photonics. |
| title | Silicon nanoantennas for tailoring the optical properties of MoS2 monolayers |
| topic | Optics Materials Science |
| url | https://arxiv.org/abs/2504.03264 |