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Simple linear technique for the measurement of space-time coupling in ultrashort optical pulses

机译:简单的线性技术用于测量超短光脉冲中的时空耦合

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摘要

We demonstrate a simple sensitive linear technique that quantifies the spatiotemporal coupling in the electric field of an ultrashort optical pulse. The space-time uniformity of the field can be determined with only time-stationary filters and square-law integrating detectors, even if it is impossible to measure the temporal electric field in this way. A degree of spatiotemporal uniformity is defined and can be used with the demonstrated diagnostic to quantify space-time coupling. Experimental measurements of space-time coupling due to linear and nonlinear focusing, refraction, and diffraction are presented.
机译:我们演示了一种简单的灵敏线性技术,可量化超短光脉冲电场中的时空耦合。即使不可能以这种方式测量时间电场,也只能通过时间固定滤波器和平方律积分检测器来确定场的时空均匀性。时空均匀性的程度已定义,可与已证明的诊断方法结合使用以量化时空耦合。提出了由于线性和非线性聚焦,折射和衍射而引起的时空耦合的实验测量。

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