Electromagnetically induced transparency at a chiral exceptional point
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2019
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| _version_ | 1866916271746973696 |
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| author | Wang, Changqing Jiang, Xuefeng Zhao, Guangming Zhang, Mengzhen Hsu, Chia Wei Peng, Bo Stone, A. Douglas Jiang, Liang Yang, Lan |
| author_facet | Wang, Changqing Jiang, Xuefeng Zhao, Guangming Zhang, Mengzhen Hsu, Chia Wei Peng, Bo Stone, A. Douglas Jiang, Liang Yang, Lan |
| contents | Electromagnetically induced transparency, as a quantum interference effect to eliminate optical absorption in an opaque medium, has found extensive applications in slow light generation, optical storage, frequency conversion, optical quantum memory as well as enhanced nonlinear interactions at the few-photon level in all kinds of systems. Recently, there have been great interests in exceptional points, a spectral singularity that could be reached by tuning various parameters in open systems, to render unusual features to the physical systems, such as optical states with chirality. Here we theoretically and experimentally study transparency and absorption modulated by chiral optical states at exceptional points in an indirectly-coupled resonator system. By tuning one resonator to an exceptional point, transparency or absorption occurs depending on the chirality of the eigenstate. Our results demonstrate a new strategy to manipulate the light flow and the spectra of a photonic resonator system by exploiting a discrete optical state associated with specific chirality at an exceptional point as a unique control bit, which opens up a new horizon of controlling slow light using optical states. Compatible with the idea of state control in quantum gate operation, this strategy hence bridges optical computing and storage. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1911_03552 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Electromagnetically induced transparency at a chiral exceptional point Wang, Changqing Jiang, Xuefeng Zhao, Guangming Zhang, Mengzhen Hsu, Chia Wei Peng, Bo Stone, A. Douglas Jiang, Liang Yang, Lan Optics Systems and Control Classical Physics Quantum Physics Electromagnetically induced transparency, as a quantum interference effect to eliminate optical absorption in an opaque medium, has found extensive applications in slow light generation, optical storage, frequency conversion, optical quantum memory as well as enhanced nonlinear interactions at the few-photon level in all kinds of systems. Recently, there have been great interests in exceptional points, a spectral singularity that could be reached by tuning various parameters in open systems, to render unusual features to the physical systems, such as optical states with chirality. Here we theoretically and experimentally study transparency and absorption modulated by chiral optical states at exceptional points in an indirectly-coupled resonator system. By tuning one resonator to an exceptional point, transparency or absorption occurs depending on the chirality of the eigenstate. Our results demonstrate a new strategy to manipulate the light flow and the spectra of a photonic resonator system by exploiting a discrete optical state associated with specific chirality at an exceptional point as a unique control bit, which opens up a new horizon of controlling slow light using optical states. Compatible with the idea of state control in quantum gate operation, this strategy hence bridges optical computing and storage. |
| title | Electromagnetically induced transparency at a chiral exceptional point |
| topic | Optics Systems and Control Classical Physics Quantum Physics |
| url | https://arxiv.org/abs/1911.03552 |