@proceedings{12905,
  author = {Richard Sandberg and Henry Kapteyn and et. al},
  editor = {Ciaran Lewis and Margaret Murnane},
  title = {Lensless Imaging Using Table-Top Soft X-Ray Lasers and High Harmonics Sources Reaching 70 nm Resolution},
  abstract = {<p>A very promising high resolution imaging technique currently under rapid development is x-ray diffraction microscopy (or lensless imaging), in which a coherent x-ray diffraction pattern of a non-crystalline specimen is measured. In this technique, a sample is illuminated by coherent light, and the detailed scatter pattern is sampled at a rate higher than the Nyquist frequency. A computerized, iterative phase-retrival algorithm replaces the imaging optics, thus making it possible to reconstruct the image of the sample. Here we demonstrate soft x-ray diffraction microscopy with two complementary coherent soft x-ray sources- a capillary discharge soft x-ray laser at 47 nm [1] and a high harmonic generation source at 29 nm [2]. By using novel field curvature correction in the image reconstruction at high numerical aperture, we retrieve images with resolution as los was 70 nm using set-ups that fit on a 4′x8′ optical table- including both the soft x-ray source and the lensless microscope.</p>
},
  year = {2009},
  pages = {433-438},
  month = {2009-06},
  publisher = {Springer Netherlands},
  address = {Dordrecht},
  isbn = {"978-1-4020-9924-3"},
  url = {https://link.springer.com/chapter/10.1007/978-1-4020-9924-3_50},
  doi = {10.1007/978-1-4020-9924-3_50#citeas},
}