Effect of pulse temporal shape on optical trapping and impulse transfer using ultrashort pulsed lasers
Effect of pulse temporal shape on optical trapping and impulse transfer using ultrashort pulsed lasers
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DOI：
10.1364/oe.18.007554
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发表时间：
2010-03-29
期刊：
影响因子：
3.8
通讯作者：
Dholakia, Kishan
中科院分区：
文献类型：
--
作者：
Shane, Janelle C.;Mazilu, Michael;Dholakia, Kishan
通过Lorentz-Mie理论、数值模拟和实验研究了脉冲宽度对高重复频率超短脉冲激光光阱效应的影响。光学捕获实验使用12飞秒持续时间的红外脉冲激光，与捕获显微镜的时间色散效应测量和校正使用多光子脉冲内干涉相位扫描方法。我们应用脉冲整形，可再现地拉伸脉冲持续时间的1.5个数量级，并发现没有材料无关的影响的脉冲时间轮廓上的光学捕获的780 nm的二氧化硅颗粒，与我们的理论和模拟。使用脉冲整形，我们控制捕获的荧光粒子中的双光子荧光，打开了大门，其他相干控制应用与捕获的粒子。(C)2010年美国光学学会
We investigate the effects of pulse duration on optical trapping with high repetition rate ultrashort pulsed lasers, through Lorentz-Mie theory, numerical simulation, and experiment. Optical trapping experiments use a 12 femtosecond duration infrared pulsed laser, with the trapping microscope's temporal dispersive effects measured and corrected using the Multiphoton Intrapulse Interference Phase Scan method. We apply pulse shaping to reproducibly stretch pulse duration by 1.5 orders of magnitude and find no material-independent effects of pulse temporal profile on optical trapping of 780nm silica particles, in agreement with our theory and simulation. Using pulse shaping, we control two-photon fluorescence in trapped fluorescent particles, opening the door to other coherent control applications with trapped particles. (C) 2010 Optical Society of America