Selection of laser pulse shape pulse duration flux density are discussed in pulsed laser microwelding and the experimental results are given.

讨论了脉冲激光微型焊接中，对于激光的脉冲形状、光脉冲宽度、光通量密度等的选择，并给出了实验结果。

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The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.

分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。

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The effect of pulse duration and laser beam dimension on the pressure signal is discussed.

讨论了激光脉冲持续时间，激光束宽度对压力信号的影响。

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The optimal wavelength, pulse and duration can vary, according not just to which part of the body is being operated on but also to the age of a patient, says Dr Tzou.

ECONOMIST: Ultra-fast lasers

Today, the best that can be said is that the extent and duration of future EMP-induced blackouts would depend on whether the emitter generates a small or large pulse, and whether it is detonated at ground-level or from high altitudes.

CENTERFORSECURITYPOLICY: The Blackout Next Time