Journal
OPTICA
Volume 4, Issue 12, Pages 1552-1557Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.4.001552
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Funding
- National Science Foundation (NSF) [DMR-1548924, 1144083]
- Gordon and Betty Moore Foundation (EPiQS Initiative Grant GMBF)
- Katharine Burr Blodgett Fellowship
- Defense Advanced Research Projects Agency (DARPA) [W31P4Q-13-1-0015]
- U.S. Department of Defense (DOD) (NDSEG)
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Lensless imaging with short-wavelength light is a promising method for achieving high-resolution, chemically sensitive images of a wide variety of samples. The use of 13 nm illumination is of particular interest for materials science and the imaging of next-generation nanofabricated devices. Prior to this work, there was an unmet need for a microscope that can image general samples with extreme ultraviolet light, which requires a reflection geometry. Here, we fulfill this need by performing lensless imaging using a 13 nm high-harmonic beam at grazing incidence, where most materials are reflective. Furthermore, we demonstrate to our knowledge the first 13 nm reflection-mode lensless microscope on a tabletop by using a compact high-harmonic generation source. Additionally, we present an analytic formalism that predicts when general lensless imaging geometries will yield Nyquist sampled data. Our grazing-incidence ptychographic approach, which we call GLIDER, provides the first route for achieving wide field-of-view, high-resolution, lensless images of general samples with extreme ultraviolet and soft x-ray light. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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