The numericalsimulation shows that the lateral optical force applied by femtosecond laser pulsetrain can eliminate the Brownian movement of the particles and stably trap them.

• 计算结果表明,由飞秒光脉冲产生的光学梯度力,能有效地抵消布朗运动引起的被捕获微粒逃逸势阱中心的趋势,并从理论上证明飞秒激光光镊对微粒横向稳定束缚的可行性。 理论结果以图形表述,直观形象。