Self-Referencing Photothermal Common-Path Interferometry to Measure Absorption of Si3N4 Membranes for Laser-Light Sails
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DOI: 10.1021/acsphotonics.5c01886
Abstract: Laser-light sails are a spacecraft concept, wherein lightweight “sails” are propelled by high-intensity lasers. We investigated the near-infrared absorption of free-standing membranes of stoichiometric silicon nitride (Si3N4), a candidate sail material. To resolve the small… read more here.
Keywords: light sails; photothermal common; laser light; common path ... See more keywords