Dr. rer. nat. Kahraman Keskinbora

Dr. rer. nat. Kahraman Keskinbora

Alumni

Curriculum Vitae

Employment

Visiting Scholar - Harvard University SEAS/CIQM & MIT Department of Physics - Since 2018

Research Group Leader - MPI - IS - Department of Modern Magnetic Systems - Since 2015

Education

Ph.D. University of Stuttgart & MPI-IS - 2015

M.Sc. Anadolu University - 2010

B.Sc. Anadolu University - 2007


Publications

1. K. Keskinbora, Prototyping Micro-and Nano-Optics with Focused Ion Beam Lithography, SPIE Press – Spotlights, 2019, DOI: https://doi.org/10.1117/3.2531118.ch1, PDF ISBN: 9781510628137

2. L. Loetgering, M. Rose, K. Keskinbora, M. Baluktsian, …, T. Wilhein, Correction of axial position uncertainty and systematic detector errors in ptychographic diffraction imaging, Opt. Eng. 57 (8), 084106, 2018

3. K. Keskinbora*, U.T. Sanli, M. Baluktsian, C.Grévent, G. Schütz, High-throughput Synthesis of High Resolution Modified Fresnel Zone Plate arrays via Ion Beam Lithography, Beilstein Journal of Nanotechnology 9 (1), 2049-2056, 2018

4. U. T. Sanli, H. Ceylan*, I. Bykova, M. Weigand, M. Sitti, G. Schütz, K. Keskinbora*, 3D Nano-printed Kinoform X-ray Optics, Adv. Mater. 1802503, 2018

5. U. T. Sanli*, C. J. M. Baluktsian, C. Grevent, K. H., Y. Wang, V. Srot, G. Richter, I. Bykova, M. Weigand, G. Schütz, K. Keskinbora* 3D Nanofabrication of High-resolution Multilayer Fresnel Zone Plates Adv. Science, 1800346, 2018

6. P. Vayalamkuzhi, S. Bhattacharya, U. Eigenthaler, K. Keskinbora, C.T. Samlan, M. Hirscher, J.P. Spatz, N.K. Viswanathan, Direct patterning of vortex generators on a fiber tip using a focused ion beam Opt. Express, 41, 10, 2133, 2016

7. K. Keskinbora, C. Grévent, M. Hirscher, M. Weigand, G. Schütz, Single-step 3D nanofabrication of kinoform optics via gray-scale focused ion beam lithography for efficient X-ray focusing Adv. Opt. Mater., 3, 792-800, 2015

8. K. Keskinbora, A.-L. Robisch, M. Mayer, U. T. Sanli, C. Grévent, C. Wolter, M. Weigand, A. Szeghalmi, M. Knez, T. Salditt, G. Schütz, Multilayer Fresnel zone plates for high energy radiation resolve 21 nm features at 1.2 keV Opt. Express, 22 (15), 18440-18453, 2014

9. K. Keskinbora, C. Grévent, U. Eigenthaler, M. Weigand, G. Schütz, Rapid prototyping of Fresnel zone plates via direct Ga+ ion beam lithography for high resolution X-Ray imaging, ACS Nano, 7 (11), 9788-9797, 2013

10. K. Keskinbora, C. Grévent, M. Bechtel, M. Weigand, E. Goering, A. Nadzeyka, L. Peto, S. Rehbein, G. Schneider, R. Follath, J. Vila-Comamala, H. Yan, G. Schütz, Ion beam lithography for Fresnel zone plates in X-ray microscopy Opt. Express 21 (10), 11747-11756, 2013

11. M. Mayer, K. Keskinbora, C. Grévent, A. Szeghalmi, M. Knez, M. Weigand, A. Snigirev, I. Snigireva, G. Schutz, Efficient focusing of 8 keV X-rays with multilayer Fresnel zone plates fabricated by atomic layer deposition and focused ion beam milling J. Synchrotron Radiat. 20 (3), 433-440, 2013

12. A Nadzeyka, L. Peto, S. Bauerdick, M. Mayer, K. Keskinbora, C. Grévent, M. Weigand, M. Hirscher, G. Schütz, Ion beam lithography for direct patterning of high accuracy large area X-ray elements in gold on membranes Microelectron. Eng., 98, 198-201, 2012

13. K. Keskinbora, T. S. Suzuki, I. O. Ozer, Y. Sakka, E. Suvaci, Hybrid processing and anisotropic sintering shrinkage in textured ZnO ceramics Sci. Technol. Adv. Mater. 11 (6), 065006, 2011

14. N. Saha, K. Keskinbora, E. Suvaci, B. Basu, Sintering, microstructure, mechanical, and antimicrobial properties of HAp‐ZnO biocomposites J. Biomed. Mater. Res., Part B 95 (2), 430-440, 2010

15. I. Bykova, K. Keskinbora, U. Sanli, J. Gräfe, M. Bechtel, G. Yu, … Weigand, M. Soft X-ray Ptychography for Imaging of Magnetic Domains and Skyrmions in Sub-100 nm Scales. Microscopy & Microanalysis, 24(S2), 36-37. DOI:10.1017/S1431927618012606, 2018

16. U. Sanli, H. Ceylan, C. Jiao, M. Baluktsian, Grevent, K. C., Hahn, ... K. Keskinbora* New Concepts for 3D Optics in X-ray Microscopy. Microscopy & Microanalysis, 24(S2), 292-293. DOI:10.1017/S1431927618013788, 2018

17. J. Gräfe, M. Decker, K. Keskinbora, M. Noske, P. Gawronski, H. Stoll, C. H Back, E. J. Goering, G. Schütz, X-Ray Microscopy of Spin Wave Focusing using a Fresnel Zone Plate arXiv preprint arXiv:1707.03664, 2017

18. M. Baluktsian, K. Keskinbora, Y.T. Sanli, Micromachining of Si3N4 by Ga+-Ion Implantation and Dry Etching, Microscopy & Microanalysis 22, (S3), 170-171, 2016

19. K. Keskinbora*, U.T. Sanli, C. Grévent, G. Schütz, Fabrication and x-ray testing of true kinoform lenses with high efficiencies, Proc. SPIE, 95920H-95920H-6, 2015 

20. U.T. Sanli, K. Keskinbora*, K. Gregorczyk, J. Leister, N. Teeny, C. Grévent, M. Knez, G. Schütz, High-Resolution High-Efficiency Multilayer Fresnel Zone Plates For Soft and Hard X-Rays, Proc. SPIE, 95920F-95920F-8, 2015

21. K. Keskinbora, U.T. Sanli, C. Grévent, M. Hirscher, G. Schütz, Focused Ion Beam Micromachining Enables Novel Optics for X-ray Microscopy, Microscopy & Microanalysis 21 (S3), 1983-1984, 2015

22. U.T. Sanli, K. Keskinbora, C. Grévent, A. Szeghalmi, M. Knez, G. Schütz, Multilayer Fresnel Zone Plates for X-ray Microscopy, Microscopy & Microanalysis 21 (S3), 1987-1988, 2015

23. U. T. Sanli, K. Keskinbora, C. Grévent, G. Schütz, Overview of the multilayer-Fresnel Zone Plate and the kinoform lens development at MPI for Intelligent Systems, Proc. of SPIE, 95100U-95100U-9, 2015

24. Vijayakumar, U. Eigenthaler, K. Keskinbora, G. M Sridharan, V. Pramitha, M. Hirscher, J. P. Spatz, S. Bhattacharya, Optimizing the fabrication of diffractive optical elements using a focused ion beam system, Proc. SPIE 9130, 91300X-1, 2014

25. K. Keskinbora, A.-L. Robisch, M. Mayer, C. Grévent, A. V. Szeghalmi, M. Knez, M. Weigand, I. Snigireva, A. Snigirev, T. Salditt, G. Schütz, Recent advances in use of atomic layer deposition and focused ion beams for fabrication of Fresnel Zone Plates for hard X-rays, Proc. SPIE, 885119-885119-5, 2013

Patents

26. K. Keskinbora, U. T. Sanli, H. Ceylan, G. Schütz, M. Sitti, Method for Printing X-Ray Optics and Printed X-Ray Optics, EP18161035.3, PCT Application, 2018

27. U. T. Sanli, K. Keskinbora and G. Schütz, High Resolution Full Material Fresnel Zone Plate Array and Process for its Fabrication, PCT Application, August 2016

28. G. Schütz, C. Grévent, K. Keskinbora, M. Hirscher, Method of producing a Fresnel Zone Plate for applications in high energy radiation, US Patent, US9859028B2, 2018

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