Time integrated detection of femtosecond laser pulses scattered by small droplets

被引:19
作者
Bakic, Sasa [1 ]
Heinisch, Christian [3 ]
Damaschke, Nils [2 ]
Tschudi, Theo [3 ]
Tropeal, Cameron [1 ]
机构
[1] Tech Univ Darmstadt, D-64287 Darmstadt, Germany
[2] Univ Rostock, Inst Elect Engn, D-18051 Rostock, Germany
[3] Tech Univ Darmstadt, Inst Appl Phys, D-64289 Darmstadt, Germany
关键词
D O I
10.1364/AO.47.000523
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (c) 2008 Optical Society of America.
引用
收藏
页码:523 / 530
页数:8
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