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Experimental Identification and Study of Coloured Conical Emission in Quadratic Nonlinear Media |
| YANG Hua; QIAN Lie-Jia;FU Xi-Quan;LUO Hang;YUAN Peng;ZHU He-Yuan |
| State Key Laboratory for Advanced Photonic Materials and Devices, Advanced Materials Laboratory, Department of Optical Science and Engineering, Fudan University, Shanghai 200433 |
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| Cite this article: |
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YANG Hua, QIAN Lie-Jia, FU Xi-Quan et al 2007 Chin. Phys. Lett. 24 1945-1948 |
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Abstract We have explicitly identified coloured conical emission (CCE) and noncollinear optical parametric generation (OPG) by spectrum characterizations. With an experimental setup providing different pump pulse durations, CCE and noncollinear OPG are observed both alternatively and simultaneously. Comparisons between CCE and noncollinear OPG are studied. Accumulation behaviour of modulational instabilities is observed in our two-crystal cascaded configuration, which results in enhancement or depression of the CCE formation.
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| Keywords:
42.65.Ky
42.65.Re
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Received: 16 March 2007
Published: 25 June 2007
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| PACS: |
42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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