Photonic gauge potential in a system with a synthetic frequency dimension
We generalize the concept of photonic gauge potential in real space by introducing an additional "synthetic" frequency dimension in addition to the real space dimensions. As an illustration, we consider a one-dimensional array of ring resonators, each supporting a set of resonant modes hav...
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| Veröffentlicht in: | Optics letters 2016-02, Vol.41 (4), p.741-744 |
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| container_title | Optics letters |
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| creator | Yuan, Luqi Shi, Yu Fan, Shanhui |
| description | We generalize the concept of photonic gauge potential in real space by introducing an additional "synthetic" frequency dimension in addition to the real space dimensions. As an illustration, we consider a one-dimensional array of ring resonators, each supporting a set of resonant modes having a frequency comb with spacing Ω, and undergoing a refractive index modulation at the modulation frequency equal to Ω. We show that the modulation phase provides a gauge potential in the synthetic two-dimensional space with the dimensions being the frequency and the spatial axes. Such a gauge potential can create a topologically protected one-way edge state in the synthetic space that is useful for high-efficiency generation of higher-order side bands. |
| doi_str_mv | 10.1364/OL.41.000741 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0146-9592 |
| ispartof | Optics letters, 2016-02, Vol.41 (4), p.741-744 |
| issn | 0146-9592 1539-4794 |
| language | eng |
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| source | Optica Publishing Group Journals |
| subjects | Arrays Gages Gauges Modulation Photonics Refractive index Refractivity Resonators |
| title | Photonic gauge potential in a system with a synthetic frequency dimension |
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