Journal
OPTICS LETTERS
Volume 44, Issue 12, Pages 3082-3085Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.003082
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- National Aeronautics and Space Administration (NASA) [80NSSC18K0867]
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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
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