Holography-guided ptychography with soft X-rays

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Holography-guided ptychography with soft X-rays. / Hessing, Piet; Pfau, Bastian; Guehrs, Erik; Schneider, Michael; Shemilt, Laura; Geilhufe, Jan; Eisebitt, Stefan.

I: Optics Express, Vol. 24, Nr. 2, 25.01.2016, s. 1840-1851.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Hessing, P, Pfau, B, Guehrs, E, Schneider, M, Shemilt, L, Geilhufe, J & Eisebitt, S 2016, 'Holography-guided ptychography with soft X-rays', Optics Express, vol. 24, nr. 2, s. 1840-1851. https://doi.org/10.1364/OE.24.001840

APA

Hessing, P., Pfau, B., Guehrs, E., Schneider, M., Shemilt, L., Geilhufe, J., & Eisebitt, S. (2016). Holography-guided ptychography with soft X-rays. Optics Express, 24(2), 1840-1851. https://doi.org/10.1364/OE.24.001840

CBE

Hessing P, Pfau B, Guehrs E, Schneider M, Shemilt L, Geilhufe J, Eisebitt S. 2016. Holography-guided ptychography with soft X-rays. Optics Express. 24(2):1840-1851. https://doi.org/10.1364/OE.24.001840

MLA

Vancouver

Hessing P, Pfau B, Guehrs E, Schneider M, Shemilt L, Geilhufe J et al. Holography-guided ptychography with soft X-rays. Optics Express. 2016 jan 25;24(2):1840-1851. https://doi.org/10.1364/OE.24.001840

Author

Hessing, Piet ; Pfau, Bastian ; Guehrs, Erik ; Schneider, Michael ; Shemilt, Laura ; Geilhufe, Jan ; Eisebitt, Stefan. / Holography-guided ptychography with soft X-rays. I: Optics Express. 2016 ; Vol. 24, Nr. 2. s. 1840-1851.

RIS

TY - JOUR

T1 - Holography-guided ptychography with soft X-rays

AU - Hessing, Piet

AU - Pfau, Bastian

AU - Guehrs, Erik

AU - Schneider, Michael

AU - Shemilt, Laura

AU - Geilhufe, Jan

AU - Eisebitt, Stefan

PY - 2016/1/25

Y1 - 2016/1/25

N2 - Ptychography is a lensless imaging technique that aims to reconstruct an object from a set of coherent diffraction patterns originating from different and partially overlapping sample illumination areas. For a successful convergence of the iterative algorithms used, the sample scan positions have to be known with very high accuracy. Here, we present a method that allows to directly encode this information in the diffraction patterns without the need of accurate position encoders. Our approach relies on combining ptychography with another coherent imaging method, namely Fourier-transform holography. We have imaged two different objects using coherent soft-X-ray illumination and investigate the influence of experimental and numerical position refinement on the reconstruction result. We demonstrate that holographically encoded positions significantly reduce the experimental and numerical requirements. Our ptychographic reconstructions cover a large field of view with diffraction-limited resolution and high sensitivity in the reconstructed phase shift and absorption of the objects.

AB - Ptychography is a lensless imaging technique that aims to reconstruct an object from a set of coherent diffraction patterns originating from different and partially overlapping sample illumination areas. For a successful convergence of the iterative algorithms used, the sample scan positions have to be known with very high accuracy. Here, we present a method that allows to directly encode this information in the diffraction patterns without the need of accurate position encoders. Our approach relies on combining ptychography with another coherent imaging method, namely Fourier-transform holography. We have imaged two different objects using coherent soft-X-ray illumination and investigate the influence of experimental and numerical position refinement on the reconstruction result. We demonstrate that holographically encoded positions significantly reduce the experimental and numerical requirements. Our ptychographic reconstructions cover a large field of view with diffraction-limited resolution and high sensitivity in the reconstructed phase shift and absorption of the objects.

U2 - 10.1364/OE.24.001840

DO - 10.1364/OE.24.001840

M3 - Article

VL - 24

SP - 1840

EP - 1851

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 2

ER -