Wide-field broadband extreme ultraviolet transmission ptychography using a high-harmonic source.
Opt Lett
; 41(7): 1317-20, 2016 Apr 01.
Article
en En
| MEDLINE
| ID: mdl-27192225
ABSTRACT
High-harmonic generation (HHG) provides a laboratory-scale source of coherent radiation ideally suited to lensless coherent diffractive imaging (CDI) in the EUV and x-ray spectral region. Here we demonstrate transmission extreme ultraviolet (EUV) ptychography, a scanning variant of CDI, using radiation at a wavelength around 29 nm from an HHG source. Image resolution is diffraction-limited at 54 nm and fields of view up to â¼100 µm are demonstrated. These results demonstrate the potential for wide-field, high-resolution, laboratory-scale EUV imaging using HHG-based sources with potential application in biological imaging or EUV lithography pellicle inspection.
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Opt Lett
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2016
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Article