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Completed TRL 3 (started at 2, targeting 3)
To augment the performance of quantm dot (QD) spectrometers, a novel spectrometry technology already under development at NASA GSFC with particular applications for planetary science, we propose integration with a light capturing thin film Fabry–Pérot cavity to increase optical interaction with QD filters. By adding partially reflective layers above and below the QD spectrometer array, light is forced to cycle within the layers, continuously interacting absorptive QD filters (Figure 1), improving their efficiency and performance while also reducing fabrication complexity and the use of hazardous and high cost QD materials, by reducing the number of layers of QD ink solution that need to be applied to achieve effective filtering.
This work will advance the novel planetary science measurements enabled by QD spectrometers enabling hyperspectral imaging in a compact form factor, with the particular aim of simplifying the production and improving the optical performance of QD spectrometers to prepare for direct implementation on a game changing solar sail patform in a mission targeting spectroscopic imaging of the Neptune-Triton system (ScienceCraft for Outer Planet Exploration (SCOPE), 2024 NIAC Phase II Awardee)
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