التفاصيل البيبلوغرافية
| العنوان: |
Influence of finite spatial coherence on ptychographic reconstruction. |
| المؤلفون: |
Stachnik, K.1 karolina.stachnik@desy.de, Mohacsi, I.2, Vartiainen, I.2, Stuebe, N.1, Meyer, J.1, Warmer, M.1, David, C.2, Meents, A.1 |
| المصدر: |
Applied Physics Letters. 7/6/2015, Vol. 107 Issue 1, p1-5. 5p. 1 Diagram, 3 Charts, 4 Graphs. |
| مصطلحات موضوعية: |
*COHERENCE (Optics), *DIFFRACTION patterns, *X-ray microscopy, *SPECTRUM analysis, *IMAGE reconstruction |
| مستخلص: |
X-ray ptychography is an ultrahigh-resolution scanning coherent diffractive imaging technique, allowing quantitative measurements of extended samples and a simultaneous reconstruction of the illuminating wavefront. Recent development of the mixed-state reconstruction algorithm has triggered a certain interest in utilizing partially coherent X-ray sources for ptychography. Here, we study how finite spatial coherence influences the reconstructed image of a test structure. Our work shows that use of a highly coherent illumination provides images with better spatial resolution and fewer artefacts than the approach with partial coherence. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
Academic Search Index |
