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Stimulated supercontinuum-radiation generation of carbon disulfide by all-trans-β-carotene fluorescence enhancement effect in liquid core optical fibre |
Men Zhi-Wei(门志伟)a)b), Fang Wen-Hui(房文汇)b), Li Zuo-Wei(里佐威)b), Qu Guan-Nan(曲冠男)b),Gao Shu-Qin(高淑琴)b), Lu Guo-Hui(陆国会) b),Yang Jian-Ge(杨健戈)b)c), and Sun Cheng-Lin(孙成林)a)b)† |
a State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130021, China; b College of Physics, Jilin University, Changchun 130021, Chinac Air Force Aviation University, Changchun 130022, China |
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Abstract We demonstrate stimulated supercontinuum-radiation of carbon disulfide (CS2) influenced by biological molecules all-trans-β-carotene in liquid core optical fibre (LCOF). By virtue of the broad fluorescence characteristics and large third-order optical nonlinearities of all-trans-β-carotene,the high-order Stokes lines of stimulated Raman scattering (SRS) and the multi-order Stokes lines of stimulated Brillouin scattering (SBS) excitated by SRS are observed at low input-laser energies. The results indicate that the fluorescence not only enhances the SRS, but also the SBS. These Stokes lines generate the SRS–SBS supercontinuum radiation (RBSR). A flat-amplitude bandwidth of 110 nm from 515nm to 625nm is observed when a frequency-doubled Nd:YAG laser at 532nm with an energy of 0.86mJ is used. This result is expected to be useful for the multi-wavelength fibre laser.
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Received: 24 July 2009
Revised: 11 March 2010
Accepted manuscript online:
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PACS:
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42.62.Be
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(Biological and medical applications)
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42.65.Dr
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(Stimulated Raman scattering; CARS)
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42.65.Es
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(Stimulated Brillouin and Rayleigh scattering)
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87.64.K-
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(Spectroscopy)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10774057 and 10974067). |
Cite this article:
Men Zhi-Wei(门志伟), Fang Wen-Hui(房文汇), Li Zuo-Wei(里佐威), Qu Guan-Nan(曲冠男),Gao Shu-Qin(高淑琴), Lu Guo-Hui(陆国会),Yang Jian-Ge(杨健戈), and Sun Cheng-Lin(孙成林) Stimulated supercontinuum-radiation generation of carbon disulfide by all-trans-β-carotene fluorescence enhancement effect in liquid core optical fibre 2010 Chin. Phys. B 19 084206
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