Interferometric frequency-resolved optical gating.
Interferometric frequency-resolved optical gating.
复制标题
干涉频率分辨光选通。
DOI：
10.1364/opex.13.002617
复制
发表时间：
2005
期刊：
影响因子：
3.8
通讯作者：
G. Steinmeyer
中科院分区：
文献类型：
--
作者：
G. Stibenz;G. Steinmeyer
我们展示了一种新的变体的频率分辨光学门控（FROG），这是基于光谱解决共线干涉自相关，而不是一个非共线。从干涉FROG跟踪，可以提取两个术语，标准SHG-FROG跟踪和一个新的相敏调制组件，这两者都允许独立检索的脉冲形状。我们比较这两种方法和一个单独的SPIDER测量使用6.5 fs脉冲从白光连续的结果。我们发现，新型调制分量可以在少周期范围内鲁棒地恢复脉冲形状。再加上增加的交叉检查，我们的方法显着提高了在这个政权的脉冲表征的选择。
We demonstrate a novel variant of frequency-resolved optical gating (FROG) that is based on spectrally resolving a collinear interferometric autocorrelation rather than a noncollinear one. From the interferometric FROG trace, one can extract two terms, the standard SHG-FROG trace and a new phase-sensitive modulational component, which both allow for independent retrieval of the pulse shape. We compare the results of both methods and a separate SPIDER measurement using 6.5-fs pulses from a white-light continuum. We find that the novel modulational component allows for robust retrieval of pulse shapes in the few-cycle regime. Together with the added cross-checks, our method significantly enhances choices for pulse characterization in this regime.