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Center Innovation Fund: GSFC CIF

Phase Fresnel Lens Nanofabrication

Completed Technology Project

Project Description

Phase Fresnel Lens Nanofabrication Project
Using NASA APRA and internal GSFC funding, PFLs have been fabricated using MEMS techniques at both UMCP and GSFC and have been characterized to have nearly diffraction-limited imaging, ~14 milli-arcseconds in the best case. Initial work was also completed by using a PFL and refractive component to produce an acromat that significantly extended the X-ray bandwidth of the imaging. However, MEMS fabrication is costly and time consuming, which makes prototyping new designs difficult. What is needed is a cost-effective and rapid fabrication technique to fabricate new PFL-based designs with improved performance and then characterize their performance at the GSFC 600-m Interferometry Testbed. The hot embossing technique (a micro-scale "off-set printing" approach) recently developed by Northeaster University offers this possibility. DELIVERABLE IN FY16: At least one Phase Fresnel Lens of design for an appropriate X-ray energy and focal length that can be characterized in the GSFC 600-m Interferometry Testbed. More »

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