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Stable diffractive beam rider

机译:稳定的衍射梁骑手

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摘要

A passively stable laser-driven lightsail is described, which makes use of a spatially variant "bi-grating" sail with a mass (payload) attached to a boom (patent pending). A two-dimensional analytical model of the system, a linear stability analysis, and numerical solutions of the equations of motion are reported. The acceleration of the light sail along the beam path is found to depend on the grating parameters. We identify stability conditions that depend on the grating design, beam parameters, and boom length. The inclusion of damping is found to enhance the dynamic range of stability. (C) 2019 Optical Society of America
机译:描述了一种被动稳定的激光驱动的灯井,这使得使用附接到悬臂的质量(有效载荷)的空间变体“双光栅”帆(专利申请)。 报道了系统的二维分析模型,线性稳定性分析和运动方程的数值解。 发现光沿光束路径的加速度取决于光栅参数。 我们识别依赖于光栅设计,光束参数和悬臂长度的稳定条件。 发现包含阻尼的增强稳定性的动态范围。 (c)2019年光学学会

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