Electrically tunable spin-orbit coupled photonic lattice in a liquid crystal microcavity
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| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866911950558986240 |
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| author | Muszyński, Marcin Oliwa, Przemysław Kokhanchik, Pavel Kapuściński, Piotr Oton, Eva Mazur, Rafał Morawiak, Przemysław Piecek, Wiktor Kula, Przemysław Bardyszewski, Witold Piętka, Barbara Bobylev, Daniil Solnyshkov, Dmitry Malpuech, Guillaume Szczytko, Jacek |
| author_facet | Muszyński, Marcin Oliwa, Przemysław Kokhanchik, Pavel Kapuściński, Piotr Oton, Eva Mazur, Rafał Morawiak, Przemysław Piecek, Wiktor Kula, Przemysław Bardyszewski, Witold Piętka, Barbara Bobylev, Daniil Solnyshkov, Dmitry Malpuech, Guillaume Szczytko, Jacek |
| contents | We create a one-dimensional photonic crystal with strong polarization dependence and tunable by an applied electric field. We accomplish this in a planar microcavity by embedding a cholesteric liquid crystal (LC), which spontaneously forms a uniform lying helix (ULH). The applied voltage controls the orientation of the LC molecules and, consequently, the strength of a polarization-dependent periodic potential. It leads to opening or closing of photonic band gaps in the dispersion of the massive photons in the microcavity. In addition, when the ULH structure possesses a molecular tilt, it induces a spin-orbit coupling between the lattice bands of different parity. This interband spin-orbit coupling (ISOC) is analogous to optical activity and can be treated as a synthetic non-Abelian gauge potential. Finally, we show that doping the LC with dyes allows us to achieve lasing that inherits all the above-mentioned tunable properties of LC microcavity, including dual and circularly-polarized lasing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_07161 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Electrically tunable spin-orbit coupled photonic lattice in a liquid crystal microcavity Muszyński, Marcin Oliwa, Przemysław Kokhanchik, Pavel Kapuściński, Piotr Oton, Eva Mazur, Rafał Morawiak, Przemysław Piecek, Wiktor Kula, Przemysław Bardyszewski, Witold Piętka, Barbara Bobylev, Daniil Solnyshkov, Dmitry Malpuech, Guillaume Szczytko, Jacek Optics Soft Condensed Matter We create a one-dimensional photonic crystal with strong polarization dependence and tunable by an applied electric field. We accomplish this in a planar microcavity by embedding a cholesteric liquid crystal (LC), which spontaneously forms a uniform lying helix (ULH). The applied voltage controls the orientation of the LC molecules and, consequently, the strength of a polarization-dependent periodic potential. It leads to opening or closing of photonic band gaps in the dispersion of the massive photons in the microcavity. In addition, when the ULH structure possesses a molecular tilt, it induces a spin-orbit coupling between the lattice bands of different parity. This interband spin-orbit coupling (ISOC) is analogous to optical activity and can be treated as a synthetic non-Abelian gauge potential. Finally, we show that doping the LC with dyes allows us to achieve lasing that inherits all the above-mentioned tunable properties of LC microcavity, including dual and circularly-polarized lasing. |
| title | Electrically tunable spin-orbit coupled photonic lattice in a liquid crystal microcavity |
| topic | Optics Soft Condensed Matter |
| url | https://arxiv.org/abs/2407.07161 |