| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Effect of Phase Modulation on Electromagnetically Induced Grating in a Five-Level M-Type Atomic System |
| Li Wang1,2, Yi-Hong Qi1, Li Deng 1, Yue-Ping Niu1, Shang-Qing Gong1**, Hong-Ju Guo3 |
1Department of Physics, East China University of Science and Technology, Shanghai 200237
2School of Physics and Electronics Engineering, Nanyang Normal College, Nanyang 473061
3Shanghai Publishing and Printing College, Shanghai 200093
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| Cite this article: |
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Li Wang, Yi-Hong Qi, Li Deng et al 2017 Chin. Phys. Lett. 34 074206 |
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Abstract We theoretically investigate the phenomena of electromagnetically induced grating in an M-type five-level atomic system. It is found that a weak field can be effectively diffracted into high-order directions using a standing wave coupling field, and different depths of the phase modulation can disperse the diffraction light into different orders. When the phase modulation depth is approximated to the orders of $\pi$, $2\pi$ and $3\pi$, the first-, second- and third-order diffraction intensity reach the maximum, respectively. Thus we can take advantage of the phase modulation to control the probe light dispersing into the required high orders.
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Received: 30 March 2017
Published: 23 June 2017
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| PACS: |
42.50.-p
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(Quantum optics)
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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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42.50.Nn
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(Quantum optical phenomena in absorbing, amplifying, dispersive and conducting media; cooperative phenomena in quantum optical systems)
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42.81.Dp
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(Propagation, scattering, and losses; solitons)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11274112 and 11474092, the Key Project of Shanghai Municipal Education Commission under Grant No 14ZZ056, the Shanghai Natural Science Fund Project under Grant No 14ZR1410300, and the Key Research Project of Henan Province Education Department under Grant No 13A140818. |
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