| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Dynamic light storage based on controllable electromagnetically induced transparency effect |
| Liu-Ying Zeng(曾柳莹), Jun-Fang Wu(吴俊芳)†, and Chao Li(李潮)‡ |
| School of Physics and Optoelectronic Technology, South China University of Technology, Guangzhou 510640, China |
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Abstract We analytically and numerically investigate a signal light storing mechanism based on the controllable electromagnetically induced transparency (EIT) effect. We demonstrate that the isolation between the waveguide and the cavities cannot be achieved instantly as soon as the two cavities are tuned into resonance, no matter the index tuning rate is ultrafast or slow. We also investigate the temporal evolution features of the intracavity energy when the pulse during time is prolonged. We find many periodical oscillations of the trapped energy in both cavities, and they are entirely complementary. Our analysis shows that the adiabatic wavelength conversion in both cavities and a phase difference π between them play critical roles in this phenomenon.
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Received: 15 November 2022
Revised: 28 April 2023
Accepted manuscript online: 05 May 2023
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PACS:
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.70.Qs
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(Photonic bandgap materials)
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42.82.-m
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(Integrated optics)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11774098), the Guangdong Natural Science Foundation (Grant Nos. 2022A1515011950 and 2023A1515010781), and the Science and Technology Program of Guangzhou (Grant No. 202002030500). |
Corresponding Authors:
Jun-Fang Wu, Chao Li
E-mail: wujf@scut.edu.cn;lichao@scut.edu.cn
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Cite this article:
Liu-Ying Zeng(曾柳莹), Jun-Fang Wu(吴俊芳), and Chao Li(李潮) Dynamic light storage based on controllable electromagnetically induced transparency effect 2023 Chin. Phys. B 32 064213
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