Chiral Nonlinear Polaritonics with van der Waals Metasurfaces
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866917390175961088 |
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| author | Heimig, Connor Antonov, Alexander A. Gryb, Dmytro Possmayer, Thomas Weber, Thomas Hirler, Michael Biechteler, Jonas Sortino, Luca Menezes, Leonardo de S. Maier, Stefan A. Gorkunov, Maxim V. Kivshar, Yuri Tittl, Andreas |
| author_facet | Heimig, Connor Antonov, Alexander A. Gryb, Dmytro Possmayer, Thomas Weber, Thomas Hirler, Michael Biechteler, Jonas Sortino, Luca Menezes, Leonardo de S. Maier, Stefan A. Gorkunov, Maxim V. Kivshar, Yuri Tittl, Andreas |
| contents | In the strong-coupling regime, the interaction between light and matter reaches a hybridization state where the photonic and material components are inseparably linked. Using tailored states of light to break symmetries in such systems can facilitate the development of novel non-equilibrium quantum materials. Chiral optical cavities offer a promising approach for this, enabling either temporal or spatial symmetry-breaking, both of which are unachievable with conventional mirror cavities. For spatial symmetry-breaking, a cavity must discriminate the handedness of circularly polarized light, a functionality uniquely provided by chiral metamaterials. Here, we propose and demonstrate experimentally a chiral transition metal dichalcogenide (TMDC) metasurface with broken out-of-plane symmetry, allowing for the selective formation of self-hybridized exciton-polaritons with specific handedness. Our metasurface maintains maximal chirality for oblique incidence up to 20°, significantly outperforming all previously known designs, thereby transforming the angle of incidence from a constraint into a new degree of freedom for sub-nanometer-precise tuning of the cavity's resonant wavelength. Moreover, we study the chiral strong-coupling regime in nonlinear experiments and reveal the polariton-driven nature of chiral third-harmonic generation. Our results demonstrate a clear pathway towards van der Waals (vdW) metasurfaces as a novel and potent platform for chiral polaritonics with implications in a wide range of photonics research, such as non-reciprocal photonic devices and valleytronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_18760 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Chiral Nonlinear Polaritonics with van der Waals Metasurfaces Heimig, Connor Antonov, Alexander A. Gryb, Dmytro Possmayer, Thomas Weber, Thomas Hirler, Michael Biechteler, Jonas Sortino, Luca Menezes, Leonardo de S. Maier, Stefan A. Gorkunov, Maxim V. Kivshar, Yuri Tittl, Andreas Optics Mesoscale and Nanoscale Physics In the strong-coupling regime, the interaction between light and matter reaches a hybridization state where the photonic and material components are inseparably linked. Using tailored states of light to break symmetries in such systems can facilitate the development of novel non-equilibrium quantum materials. Chiral optical cavities offer a promising approach for this, enabling either temporal or spatial symmetry-breaking, both of which are unachievable with conventional mirror cavities. For spatial symmetry-breaking, a cavity must discriminate the handedness of circularly polarized light, a functionality uniquely provided by chiral metamaterials. Here, we propose and demonstrate experimentally a chiral transition metal dichalcogenide (TMDC) metasurface with broken out-of-plane symmetry, allowing for the selective formation of self-hybridized exciton-polaritons with specific handedness. Our metasurface maintains maximal chirality for oblique incidence up to 20°, significantly outperforming all previously known designs, thereby transforming the angle of incidence from a constraint into a new degree of freedom for sub-nanometer-precise tuning of the cavity's resonant wavelength. Moreover, we study the chiral strong-coupling regime in nonlinear experiments and reveal the polariton-driven nature of chiral third-harmonic generation. Our results demonstrate a clear pathway towards van der Waals (vdW) metasurfaces as a novel and potent platform for chiral polaritonics with implications in a wide range of photonics research, such as non-reciprocal photonic devices and valleytronics. |
| title | Chiral Nonlinear Polaritonics with van der Waals Metasurfaces |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2410.18760 |