EUV Photon Sieves for Milli-Arcsecond Imaging of the Solar Corona

Metadata Updated: July 17, 2020

A photon sieve is a variant of a Fresnel zone plate that can achieve diffraction-limited angular resolution in the extreme ultraviolet (EUV). Existing EUV instruments such as SDO/AIA and Hi-C are reflecting telescopes, and fall short by an order of magnitude or more from achieving the diffraction limit, because the mirrors cannot be figured to the requisite accuracy. Photon sieves offer the ability to obtain diffraction-limited EUV images using imaging elements with greatly relaxed manufacturing tolerances: sub-micron as opposed to the sub-nanometer requirements for conventional telescopes. Furthermore, sieves can isolate strong EUV emission lines for a wide range of temperatures in the solar atmosphere, including eruptive events. The unprecedented resolution achieved will allow us to observe individual dissipation regions in the solar corona and at last understand how the corona is powered. Understanding the heating of coronal plasmas and solar eruptive events are at the heart of NASA's strategic goal to Understand the Sun and its interactions with Earth and the solar system. Therefore, we propose to manufacture large-aperture photon sieves, demonstrate diffraction-limited EUV imaging in the laboratory, and perform environmental testing of the sieves for space flight.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date February 28, 2019
Metadata Updated Date July 17, 2020

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date February 28, 2019
Metadata Updated Date July 17, 2020
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_94400
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2021-01-01
Homepage URL
Data Last Modified 2020-01-29
Program Code 026:027
Source Datajson Identifier True
Source Hash 391add58133b252da526b822c9cf7e2557a5bbc4
Source Schema Version 1.1

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