| Compensation for Self-Focusing of Picosecond Pulses in Nd：Glass by Using Cascaded Quadratic Nonlinearity |
| |
| 引用本文： | 陈昊,文双春,朱鹤元,钱列加.Compensation for Self-Focusing of Picosecond Pulses in Nd：Glass by Using Cascaded Quadratic Nonlinearity[J].中国物理快报,2004,21(12):2429-2432. |
| |
| 作者姓名： | 陈昊 文双春 朱鹤元 钱列加 |
| |
| 作者单位： | [1]StateKeyLaboratoryforAdvancedPhotonicMaterialsandDevices,DepartmentofOpticalScienceandEngineering,FudanUniversity,Shanghai200433 [2]SchoolofComputerandCommunication,HunanUniversity,Changsha410082 |
| |
| 摘 要： | One of the obstacles in obtaining high power/energy laser sources is self-focusing, which stems from the nonlinear phase shift (B-integral) accumulated during beam propagation in Kerr media. Phase-mismatched secondharmonic generation may impose a nonlinear phase shift on the fundamental with controllable sign and magnitude,which can be used to compensate for self-focusing with a single-pass configuration. We have demonstrated such a possibility for picosecond pulses theoretically and experimentally, and both configurations of pre- and postcompensation by a β-barium borate crystal have been studied in detail. Cascaded second-order nonlinearity-based compensation for self-focusing may provide an auxiliary means to the conventional B-integral control techniques.
|
| 关 键 词： | 高能激光 自聚焦 非线性周相移动 硼酸钡晶体 |
Compensation for Self-Focusing of Picosecond Pulses in Nd:Glass by Using Cascaded Quadratic Nonlinearity |
| |
| CHEN Hao,WEN Shuang-Chun,ZHU He-Yuan,QIAN Lie-Jia.Compensation for Self-Focusing of Picosecond Pulses in Nd:Glass by Using Cascaded Quadratic Nonlinearity[J].Chinese Physics Letters,2004,21(12):2429-2432. |
| |
| Authors: | CHEN Hao WEN Shuang-Chun ZHU He-Yuan QIAN Lie-Jia |
| |
| Institution: | State Key Laboratory for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai 200433
School of Computer and Communication, Hunan University, Changsha 410082 |
| |
| Abstract: | |
| |
| Keywords: | 42 60 Jf 42 65 Jx 42 65 Ky |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理快报》浏览原始摘要信息 |
| 点击此处可从《中国物理快报》下载免费的PDF全文 |
|
