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  Optical Diode Made from a Moving Photonic Crystal

Wang, D.-W., Zhou, H.-T., Guo, M.-J., Zhang, J.-X., Evers, J., & Zhu, S.-Y. (2013). Optical Diode Made from a Moving Photonic Crystal. Physical Review Letters, 110(9): 093901, pp. 1-5. doi:10.1103/PhysRevLett.110.093901.

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Wang, Da-Wei1, 2, Author
Zhou, Hai-Tao3, Author
Guo, Miao-Jun3, Author
Zhang, Jun-Xiang3, Author
Evers, Jörg1, 4, Author           
Zhu, Shi-Yao1, 2, 3, Author
Affiliations:
1Beijing Computational Science Research Centre, , Beijing 100084, China, ou_persistent22              
2Centre of Optics Sciences and Department of Physics, The Chinese University of Hong Kong, , Hong Kong, China, ou_persistent22              
3The State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University,, Taiyuan 030006, China, ou_persistent22              
4Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              

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 Abstract: Optical diodes controlling the flow of light are of principal significance for optical information processing. They transmit light from an input to an output, but not in the reverse direction. This breaking of time reversal symmetry is conventionally achieved via Faraday or nonlinear effects. For applications in a quantum network, features such as the abilities of all-optical control, on-chip integration, and single-photon operation are important. Here we propose an all-optical optical diode which requires neither magnetic fields nor strong input fields. It is based on a “moving” photonic crystal generated in a three-level electromagnetically induced transparency medium in which the refractive index of a weak probe is modulated by the moving periodic intensity of a strong standing coupling field with two detuned counterpropagating components. Because of the Doppler effect, the frequency range of the crystal’s band gap for the probe copropagating with the moving crystal is shifted from that for the counterpropagating probe. This mechanism is experimentally demonstrated in a room temperature Cs vapor cell.

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 Dates: 2013-02-25
 Publication Status: Published online
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.110.093901
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Title: Physical Review Letters
Source Genre: Journal
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Publ. Info: Woodbury, N.Y., etc. : American Physical Society.
Pages: 5 Volume / Issue: 110 (9) Sequence Number: 093901 Start / End Page: 1 - 5 Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1