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| 射频超导腔加速性能的改进 | |
| 引用本文： | 朱海永,张戈,黄呈辉,魏勇,黄凌雄,陈静,陈玮冬,位民,陈振强. 射频超导腔加速性能的改进[J]. 强激光与粒子束, 2006, 18(9): 0-1416 |
| 作者姓名： | 朱海永 张戈 黄呈辉 魏勇 黄凌雄 陈静 陈玮冬 位民 陈振强 |
| 作者单位： | 1.北京航空航天大学 理学院 物理系,北京 1 00083; |
| 基金项目： | 国家自然科学基金;福建省科技基金 |
| 摘 要： | 为提高超导加速腔的加速梯度和Q值，改进了薄膜型超导腔的加速性能。研究证明，对于铜铌溅射腔，在无氧铜衬底和铌膜之间加入NbN 层可以提高铌膜的超导转变温度，改善晶格结构；对纯铌超导腔提出了改进方法，在传统的纯铌超导腔表面制备多层的超导-绝缘-超导复合膜可以屏蔽Nb腔表面的界面场，提高超导腔的临界磁场，从而提高了铌腔的加速梯度。 |
| 关 键 词： | 溅射 超导腔 氮化铌 超导转变温度 超导-绝缘-超导 |
| 文章编号： | 1001-4322(2006)09-1413-04 |
| 收稿时间： | 2006-03-27 |
| 修稿时间： | 2006-07-13 |
High-power CW diode-side-pumped Nd:YAP laser at 1 341.4 nm |
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| ZHU Hai-yong,ZHANG Ge,HUANG Cheng-hui,WEI Yong,HUANG Lin-xiong,CHEN Jing,CHEN Wei-dong,WEI Min,CHEN Zhen-qiang. High-power CW diode-side-pumped Nd:YAP laser at 1 341.4 nm[J]. High Power Laser and Particle Beams, 2006, 18(9): 0-1416 | |
| Authors: | ZHU Hai-yong ZHANG Ge HUANG Cheng-hui WEI Yong HUANG Lin-xiong CHEN Jing CHEN Wei-dong WEI Min CHEN Zhen-qiang |
| Affiliation: | 1.Department of Physics,School of Science,Beijing University of Aronautics and Astronautics,Beijing 100083,China;2.MOE Key Laboratory of Heavy Ion Physics,Institute of Heavy Ion Physics,Peking University,Beijing 100871,China |
| Abstract: | A high-power linearly polarized CW diode-side-pumped Nd:YAlO3(Nd:YAP) laser oscillating at 1 341.4 nm was reported. By analyzing the level structure and characteristics of transition in Nd:YAP crystal, the advantages of Nd:YAP crystal as a kind of working matter medium of 1.3 μm laser were displayed. Different output couplers for the laser were studied by experiment. Finally, a c-axis polarized laser with an output power as high as 121 W at 1 341.4 nm was obtained with a coupler transmittance of 6.5% at the maximum pumping power of 555 W. The beam quality factor was 34, the optical-optical efficiency was 21.8% and the optical slope efficiency was 41%. The a-axis polarized laser at 1 339.2 nm was also successfully obtained at the c-axis polarized laser being instable. |
| Keywords: | Nd:YAP laser Diode-side-pump CW laser Linearly polarization |
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