Presentation
28 September 2023 Optical performance of reflectivity control devices for solar sail applications
David D. Smith, Andrew F. Heaton, Saba Ramazani, Daniel A. Tyler, Les Johnson, Charles Bachmann, Dylan J. Shiltz, Chris S. Lapszynski, Nayma B. Nur, Chris H. Lee, Neset Akozbek, Dana Dement, Samuel Dummer, Brandon Farmer
Author Affiliations +
Abstract
Reflectivity control devices (RCDs) based on polymer dispersed liquid crystals were fabricated for Solar Cruiser, a SmallSat NASA Pathfinder Mission consisting of a 1653 square meter solar sail that would establish an artificial orbit sunward of the L1 Lagrange point for heliophysics observations. Here we describe the optical characterization of these birefringent electro-optic devices including thin film measurements and analysis, hyperspectral bidirectional reflectance distribution function measurements, and radiometric analysis. These measurements demonstrate the promise of RCDs for roll control and momentum management of solar sails.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David D. Smith, Andrew F. Heaton, Saba Ramazani, Daniel A. Tyler, Les Johnson, Charles Bachmann, Dylan J. Shiltz, Chris S. Lapszynski, Nayma B. Nur, Chris H. Lee, Neset Akozbek, Dana Dement, Samuel Dummer, and Brandon Farmer "Optical performance of reflectivity control devices for solar sail applications", Proc. SPIE PC12664, Optical Modeling and Performance Predictions XIII, PC1266405 (28 September 2023); https://doi.org/10.1117/12.2676775
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KEYWORDS
Solar sails

Control systems

Bidirectional reflectance transmission function

Electro optical modeling

Solar radiation models

Design and modelling

Thin film devices

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