外文题目: A novel measurement scheme for tlehe radial group delay of large-aperture ultra-short laser pulses
作者: Wu, Fenxiang; Xu, Yi; Li, Zhaoyang; Li, Wenkai; Lu, Jun; Wang, Cheng; Li, Yanyan; Liu, Yanqi; Lu, Xiaoming; Peng, Yujie; Wang, Ding; Leng, Yuxin; Li, Ruxin
刊名: Opt. Commun.
年: 2016 卷: 367 页： 259--263
英文关键词:
Femtosecond phenomenon; Ultrafast lasers; Ultrafast measurement; Correlators
TI-SAPPHIRE LASER; FRONT DISTORTION; CHROMATIC ABERRATION; FEMTOSECOND PULSES; HIGH-CONTRAST; LENS SYSTEMS; AMPLIFICATION; GENERATION; OPTICS
英文摘要:
In femtosecond high-peak-power laser system, the radial group delay (RGD) of the pulse front introduced by conventional lens-based beam expanders can significantly decrease the achievable focal intensity, especially when it is larger than the pulse duration. In order to quantitatively analyze and compensate the RGD, a novel measurement scheme based on self-reference and second-order cross-correlation technology is proposed and applied to measure the RGD of the large-aperture ultra-short laser pulses directly. The measured result of the RGD in a 200 TW Ti:sapphire laser system is in good agreement with the theoretical calculation. To our knowledge, it is the first time to realize the direct RGD measurement of large-aperture ultra-short laser pulses. (C) 2016 Elsevier B.V. All rights reserved.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1016/j.optcom.2016.01.056


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