Study of the competition between forward and backward stimulated Raman scattering in methane
文献类型：期刊论文
| 作者 | Leng, J; Sha, G; Hua, X; Yang, H; Zhang, C |
| 刊名 | applied physics b-lasers and optics
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 82期号:3页码:463-468 |
| 英文摘要 | simultaneous forward and backward stimulated raman scattering (srs) in methane pumped by a single longitudinal mode nd:yag laser at 355 nm has been investigated both experimentally and numerically. for forward srs, a maximum energy-conversion efficiency of 55% was obtained under 24 atm, while for backward srs the corresponding figure was 58% under 4.7 atm. under low pressures or at low pump energies, the conversion efficiency for backward srs was found to be much higher than that for forward srs, while the situation is quite the contrary under high pressures and at high pump energies. a quasi-two-dimensional numerical model is introduced to elucidate the competition between forward and backward srs; we conclude that the high-pressure and high-pump-energy experimental results should be caused by the thermal defocusing effect in the srs process. this is confirmed by the experimental fact that a decrease of the pulse-repetition rate increases the conversion efficiency for backward srs but decreases that for forward srs under high pressures. our calculated results are in good agreement with the experimental results at a pulse-repetition rate of 2 hz. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | optics ; physics, applied |
| 研究领域[WOS] | optics ; physics |
| 关键词[WOS] | brillouin-scattering ; relaxation oscillations ; geometry ; model ; ch4 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235120200022 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140377]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Leng, J,Sha, G,Hua, X,et al. Study of the competition between forward and backward stimulated Raman scattering in methane[J]. applied physics b-lasers and optics,2006,82(3):463-468. |
| APA | Leng, J,Sha, G,Hua, X,Yang, H,&Zhang, C.(2006).Study of the competition between forward and backward stimulated Raman scattering in methane.applied physics b-lasers and optics,82(3),463-468. |
| MLA | Leng, J,et al."Study of the competition between forward and backward stimulated Raman scattering in methane".applied physics b-lasers and optics 82.3(2006):463-468. |
入库方式： OAI收割
来源：大连化学物理研究所
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