High-contrast imaging of space objects using diffractive optics

Olha Asmolova; Prayant Hanjra; Elizabeth J. Young; Michael Dearborn

doi:10.1117/12.2321193

18 September 2018 High-contrast imaging of space objects using diffractive optics

Olha Asmolova, Prayant Hanjra, Elizabeth J. Young, Michael Dearborn

Proceedings Volume 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018; 107720J (2018) https://doi.org/10.1117/12.2321193
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

We are designing a telescope imaging system based on an apodized diffractive optical element called an apodized photon sieve (APS) in order to detect exoplanets. APSs are orders of magnitude less massive, lightweight and more compactable than mirrors. Proposed imaging system can be installed on any telescope as an "attachment" or used as a telescope itself as a part of a CubeSat payload. Methods were developed for designing the apodized sieves, measuring PSFs, and characterizing high-contrast performance of the imaging system. This new kind of APS has rotational symmetry and provides high-contrast (up to 10^-10 levels) in all directions with just one image with the throughput of 40% or higher.

Conference Presentation

Citation Download Citation

Olha Asmolova, Prayant Hanjra, Elizabeth J. Young, and Michael Dearborn "High-contrast imaging of space objects using diffractive optics", Proc. SPIE 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018, 107720J (18 September 2018); https://doi.org/10.1117/12.2321193

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