Measurement of interferometric autocorrelations: comment.
Measurement of interferometric autocorrelations: comment.
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干涉自相关的测量：评论。
DOI：
10.1364/ao.36.002523
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发表时间：
1997
期刊：
影响因子：
1.9
通讯作者：
F. Krausz
中科院分区：
文献类型：
--
作者：
C. Spielmann;L. Xu;F. Krausz
广泛用于超短光脉冲自相关的常规迈克尔逊干涉仪不能产生光脉冲的两个相同的复制品，从而产生正确的自相关信号。当人们记录只由几个光学周期组成的脉冲的干涉自相关时，这个问题就很严重。在使用亚10-fS脉冲的情况下，我们展示了用传统的迈克尔逊干涉仪记录的不对称自相关轨迹，参考了先前报道的显示相同缺陷的结果，并阐明了问题的根源。对常规干涉仪结构的简单修改即可产生正确的条纹分辨自相关轨迹。
Conventional Michelson interferometers that are widely used for autocorrelation of ultrashort optical pulses are incapable of producing two identical replicas of an optical pulse, hence yielding a correct autocorrelation signal. The problem is acute when one records the interferometric autocorrelation of pulses consisting of just a few optical cycles. With the use of sub-10-fs pulses we demonstrate asymmetric autocorrelation traces recorded with a conventional Michelson interferometer, refer to previously reported results that exhibit the same deficiency, and elucidate the origin of the problem. A simple modification of the conventional interferometer configuration yields the correct fringe-resolved autocorrelation trace.