Light sails
Interstellar travel could be getting closer. This paper (or at least a link to it) was posted on to the Fediverse.
Broadband, High-Reflectivity Dielectric Mirrors at Wafer Scale: Combining Photonic Crystal and Metasurface Architectures for Advanced Light sails
Sounds promising and at present does seem smaller spacecraft can be moved in this way, but it is a start. Good possibilities for future research and use.
I will download and read this paper later.
Tags
#Paper.#arXiv,#Optics,#Space,#propulsion,#light
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