Evolution of the frequency chirp of Gaussian pulses and beams when passing through a pulse compressor
文献类型：期刊论文
| 作者 | Li Derong; Lv Xiaohua; Bowlan Pamela; Du Rui; Zeng Shaoqun; Luo Qingming |
| 刊名 | OPTICS EXPRESS
 |
| 出版日期 | 2009 |
| 卷号 | 17期号:19页码:17070-17081 |
| 英文摘要 | The evolution of the frequency chirp of a laser pulse inside a classical pulse compressor is very different for plane waves and Gaussian beams, although after propagating through the last (4th) dispersive element, the two models give the same results. In this paper, we have analyzed the evolution of the frequency chirp of Gaussian pulses and beams using a method which directly obtains the spectral phase acquired by the compressor. We found the spatiotemporal couplings in the phase to be the fundamental reason for the difference in the frequency chirp acquired by a Gaussian beam and a plane wave. When the Gaussian beam propagates, an additional frequency chirp will be introduced if any spatiotemporal couplings (i.e. angular dispersion, spatial chirp or pulse front tilt) are present. However, if there are no couplings present, the chirp of the Gaussian beam is the same as that of a plane wave. When the Gaussian beam is well collimated, the introduced frequency chirp predicted by the plane wave and Gaussian beam models are in closer agreement. This work improves our understanding of pulse compressors and should be helpful for optimizing dispersion compensation schemes in many applications of femtosecond laser pulses. © 2009 Optical Society of America. |
| 收录类别 | SCI |
| 原文出处 | http://www.ncbi.nlm.nih.gov/pubmed/19770925 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/2539]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | OPTICS EXPRESS |
| 推荐引用方式 GB/T 7714 | Li Derong,Lv Xiaohua,Bowlan Pamela,et al. Evolution of the frequency chirp of Gaussian pulses and beams when passing through a pulse compressor[J]. OPTICS EXPRESS,2009,17(19):17070-17081. |
| APA | Li Derong,Lv Xiaohua,Bowlan Pamela,Du Rui,Zeng Shaoqun,&Luo Qingming.(2009).Evolution of the frequency chirp of Gaussian pulses and beams when passing through a pulse compressor.OPTICS EXPRESS,17(19),17070-17081. |
| MLA | Li Derong,et al."Evolution of the frequency chirp of Gaussian pulses and beams when passing through a pulse compressor".OPTICS EXPRESS 17.19(2009):17070-17081. |
入库方式： OAI收割
来源：深圳先进技术研究院
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