对于啁啾量相同的脉冲，脉冲宽度越小或模指数越大其奇异性位置离光束中心越近。
The singularity is located nearer to the central axis for the pulses with higher order transverse modes and shorter pulse duration.
为了将无衍射光应用于大景深成像系统中，分析了无衍射光束中心光斑的变化规律。
In the purpose of using non-diffracting beams to extending the depth-of-field of optical imaging system, the variation rules of the central spot of non-diffracting beams are investigated.
研究表明，光船高速自旋产生的陀螺效应使光船姿态保持稳定，侧力和气动力阻尼的共同作用使光船具有稳定于光束中心的能力。
The results show that lightcraft's attitude stabilization is achieved by gyroscopic effect, and that due to the side force and the aerodynamic damp, lightcraft has the ability to ride a laser beam.
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