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Scalable Nanofabrication Technology for Free-form Reflective Diffraction Gratings

Completed

Description

This research addresses the need for compact, high-performance optics in future NASA science missions, particularly for spaceborne instruments like CubeSats, SmallSats, and NanoSats. Freeform optics, offering non-rotationally symmetric surfaces, enable efficient packaging while maintaining high image quality, making them ideal for missions requiring wider fields of view and low f-numbers. However, freeform optics are still in early development stages, with existing design and fabrication methods being costly and challenging. This project develops a scalable nanofabrication solution for high-performance freeform reflective diffraction gratings using advanced semiconductor manufacturing techniques. The proposed solution integrates e-beam lithography, Confovis nanoscale surface mapping for precise alignment and position, conformal coatings, and scalable nanoimprint replication. These innovations provide viable high-performance free-form grating manufacturing, meeting NASA's stringent optical requirements. The approach also ensures durability under space conditions, including thermal cycling, contamination, and atomic oxygen erosion. By advancing grating design, simulation, fabrication, and scalable production, this research aims to deliver cost-effective, robust optical components for space missions, supporting NASA’s needs in spectroscopy, imaging, and other high-precision applications. The outcome will enhance the performance, manufacturability, and reliability of next-generation space optics.

Benefits

This technology enhances NASA’s spaceborne spectroscopy and imaging by enabling compact, high-performance freeform diffraction gratings. Applications include CubeSats, SmallSats, NanoSats, and deep-space telescopes requiring compact gratings with wide fields of view, low F/#s, and minimal aberration. Its scalability, durability, and precision support advanced Earth observation, planetary exploration, and astrophysics missions. This technology benefits defense, aerospace, and commercial optics industries by enabling high-performance, compact imaging and spectroscopy systems. Applications include remote sensing, biomedical imaging, autonomous navigation, and high-power laser systems. Its scalability and precision support advanced optical components for industrial inspection, environmental monitoring, semiconductor metrology, and telecommunications.

Details

Technology areaSensors and Instruments
ProgramSmall Business Innovation Research/Small Business Tech Transfer (SBIR/STTR)
Lead organizationGoddard Space Flight Center, Greenbelt, MD
Start date2025-09-29
End date2026-03-27

Project contacts

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How to get involved

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

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