Ptychographic nanotomography at the Swiss Light Source

Manuel Guizar-Sicairos; Mirko Holler; Ana Diaz; Julio C. da Silva; Esther H. R. Tsai; Oliver Bunk; Carlos Martinez-Perez; Philip C. J. Donoghue; Charles H. Wellman; Andreas Menzel

doi:10.1117/12.2188313

18 September 2015 Ptychographic nanotomography at the Swiss Light Source

Manuel Guizar-Sicairos, Mirko Holler, Ana Diaz, Julio C. da Silva, Esther H. R. Tsai, Oliver Bunk, Carlos Martinez-Perez, Philip C. J. Donoghue, Charles H. Wellman, Andreas Menzel

Author Affiliations +

Proceedings Volume 9592, X-Ray Nanoimaging: Instruments and Methods II; 95920A (2015) https://doi.org/10.1117/12.2188313
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

Ptychography combines elements of scanning probe microscopy with coherent diffractive imaging and provides a robust high-resolution imaging technique. The extension of X-ray ptychography to 3D provides nanoscale maps with quantitative contrast of the sample complex-valued refractive index. We present here progress in reconstruction and post-processing algorithms for ptychographic nanotomography, as well as outline advances in the implementation and development of dedicated instrumentation for fast and precise 3D scanning at the Swiss Light Source. Compared to the first demonstration in 2010, such developments have allowed a dramatic improvement in resolution and measurement speed, with direct impact in the application of the technique for biology and materials science. We showcase the technique by detailing the measurement and reconstruction of a fossilized dispersed spore.

Citation Download Citation

Manuel Guizar-Sicairos, Mirko Holler, Ana Diaz, Julio C. da Silva, Esther H. R. Tsai, Oliver Bunk, Carlos Martinez-Perez, Philip C. J. Donoghue, Charles H. Wellman, and Andreas Menzel "Ptychographic nanotomography at the Swiss Light Source", Proc. SPIE 9592, X-Ray Nanoimaging: Instruments and Methods II, 95920A (18 September 2015); https://doi.org/10.1117/12.2188313

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