Abstract
We demonstrate a novel imaging approach and associated reconstruction algorithm for far-field coherent di ractive imaging, based on the measurement of a pair of laterally sheared di raction patterns. The di erential phase profile retrieved from such a measurement leads to improved reconstruction accuracy, increased robustness against noise, and faster convergence compared to traditional coherent di ractive imaging methods. We measure laterally sheared di raction patterns using Fourier-transform spectroscopy with two phase-locked pulse pairs from a high-harmonic source. Using this approach, we demonstrate spectrally resolved imaging at extreme ultraviolet wavelengths between 28 and 35 nm.
Original language | English |
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Pages (from-to) | 12479-12489 |
Number of pages | 11 |
Journal | Optics Express |
Volume | 26 |
Issue number | 10 |
DOIs | |
Publication status | Published - 14 May 2018 |