Transient-grating frequency-resolved optical gating.
Transient-grating frequency-resolved optical gating.
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DOI：
10.1364/ol.22.000519
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发表时间：
1997-04
期刊：
影响因子：
3.6
通讯作者：
J. Sweetser;D. Fittinghoff;R. Trebino
中科院分区：
文献类型：
--
作者：
J. Sweetser;D. Fittinghoff;R. Trebino
我们介绍了一种瞬态光栅光束几何形状，用于超短激光脉冲的频率分辨光学门控测量，并表明它比目前使用的几何形状具有显着优势。无背景和相位匹配在一个很长的相互作用长度，它是最敏感的三阶脉冲测量几何。此外，对于长度大于~ 300fs，能量大于~ 1microj的脉冲，可以去除非线性介质，利用空气的非线性来测量脉冲。
We introduce a transient-grating beam geometry for frequency-resolved optical-gating measurements of ultrashort laser pulses and show that it offers significant advantages over currently used geometries. Background free and phase matched over a long interaction length, it is the most sensitive third-order pulse-measurement geometry. In addition, for pulses greater than ~300 fs in length and ~1 microJ in energy, the nonlinear medium can be removed and the nonlinearity of air can be used to measure the pulse.