Time integrated detection of femtosecond laser pulses scattered by small droplets.
Time integrated detection of femtosecond laser pulses scattered by small droplets.
复制标题
小液滴散射的飞秒激光脉冲的时间积分检测。
DOI：
10.1364/ao.47.000523
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发表时间：
2008
期刊：
影响因子：
1.9
通讯作者：
C. Tropea
中科院分区：
文献类型：
--
作者：
S. Bakić;C. Heinisch;N. Damaschke;T. Tschudi;C. Tropea
测量了小液滴对飞秒激光脉冲的散射，并与预测结果进行了比较，为散射场的时间积分探测提供了一些有趣的新应用。集成探测的散射强度随着散射角的大范围内液滴大小的变化而变得单调，与形态有关的共振被抑制，为利用散射强度进行颗粒尺寸测量开辟了道路。此外，波纹结构不再出现在散射的彩虹区域，大大简化了彩虹折射测量。这些飞秒激光脉冲的散射特性已经在实验室中用一种用于悬浮单个液滴的新型Paul捕捉器进行了演示。
Scattering of femtosecond laser pulses by small droplets has been measured and compared with predictions, yielding some interesting new applications for time integrated detection of the scattered field. The scattering intensity of integrated detection becomes monotonic with droplet size over large regions of scattering angle and morphology dependent resonances are surpressed, opening the way for particle sizing using the scattered intensity. Furthermore, the ripple structure no longer appears in the rainbow region of scattering, simplifying rainbow refractometry significantly. These scattering proporties of femtosecond laser pulses have been demonstrated in the laboratory using a novel Paul trap for levitating single droplets.