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White-Light Nonlinear Photonic Lattices in Self-Defocusing Media |
| GAO Yuan-Mei1; LIU Si-Min2 |
| 1College of Physics and Electronics, Shandong Normal University, Jinan 250014 2Department of Physics, Nankai University, Tianjin 300071 |
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| Cite this article: |
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GAO Yuan-Mei, LIU Si-Min 2007 Chin. Phys. Lett. 24 1596-1599 |
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Abstract Using fully incoherent white light emitted from an incandescent lamp and amplitude mask, we experimentally investigate the influence of several factors on the fabrication of the lattice in photovoltaic self-defocusing LiNbO3:Fe crystal, the factors include the orientation of the crystalline c axis relative to the principal axis of the photonic lattice and the filament, the diameter of input dark spot and the separation of the adjacent input dark spots. Experimental results reveal that the best fabricating condition of photonic lattices is that the principal axis of lattice is tilted for 45° relative to the crystalline c axis which is parallel to the filament of the lamp. In addition, it is necessary that the diameter of the input dark spot is larger than the half of their separation.
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| Keywords:
42.65.Tg
42.65.-k
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Received: 26 February 2007
Published: 17 May 2007
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| PACS: |
42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.65.-k
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(Nonlinear optics)
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