| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Conical Double Frequency Emission by Femtosecond Laser Pulses from DKDP |
| ZHANG Xi-Peng, JIANG Hong-Bing, TANG Shan-Chun, GONG Qi-Huang |
| State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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ZHANG Xi-Peng, JIANG Hong-Bing, TANG Shan-Chun et al 2009 Chin. Phys. Lett. 26 074202 |
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Abstract Conical double frequency emission is investigated by femtosecond laser pulses at a wavelength of 800nm in a DKDP crystal. It is demonstrated that the sum frequency of incident wave and its scattering wave accounts for the conical double frequency emission. The gaps on the conical rings are observed and they are very sensitive to the propagation direction, and thus could be used to detect the small angle deviation of surface direction.
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| Keywords:
42.65.Ky
42.25.Fx
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Received: 23 March 2009
Published: 02 July 2009
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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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42.25.Fx
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(Diffraction and scattering)
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