Sökning: "Zone plates"

Visar resultat 6 - 10 av 35 avhandlingar innehållade orden Zone plates.

1. 6. Nanofabrication processes for high-aspect ratio X-ray zone plates

   Författare :Hanna Ohlin Ohlin; Ulrich Vogt; Matias Kagias; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

   Sammanfattning : The field of nanofabrication is vast, and there are many methods available to facilitate the fabrication of different types of structures. Nanostructured materials make up critical infrastructure in fields like medical technology, energy storage and production, computer science and more. LÄS MER

3. 7. Laboratory soft x-ray microscopy and tomography

   Författare :Michael Bertilson; Hans Hertz; Gerd Schneider; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Microscopy; X-ray optics; Diffractive optics; Zone plates; X-ray microscopy; Soft X-ray physics; Tomography; Optics; Optik; Physics; Fysik;

   Sammanfattning : Soft x-ray microscopy in the water-window (λ = 2.28 nm – 4.36 nm) is based on zone-plate optics and allows high-resolution imaging of, e.g. LÄS MER

4. 8. High-Resolution Nanostructuring for Soft X-Ray Zone-Plate Optics

   Författare :Julia Reinspach; Hans M. Hertz; Sasa Bajt; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; zone plates; x-ray optics; x-ray microscopy; high resolution; nanofabrication; electron beam lithography; reactive ion etching; tungsten; nickel; germanium;

   Sammanfattning : Diffractive zone-plate lenses are widely used as optics in high-resolution x-ray microscopes. The achievable resolution in such microscopes is presently not limited by the x-ray wavelength but by limitations in zone-plate nanofabrication. LÄS MER

5. 9. Nanofabrication of Diffractive Soft X-ray Optics

   Författare :Magnus Lindblom; Hans M. Hertz; Erik H. Anderson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nanofabrication; Zone plate; x-ray; diffractive x-ray optics; x-ray microscopy; Optics; Optik; Physics; Fysik;

   Sammanfattning : This thesis summarizes the present status of the nanofabrication of diffractive optics, i.e. zone plates, and test objects for soft x-ray microscopy at KTH. The emphasis is on new and improved fabrication processes for nickel and germanium zone plates. LÄS MER

7. 10. Nanofabrication of Zone Plate Optics for Compact Soft X-Ray Microscopy

   Författare :Anders Holmberg; Hans Hertz; Christian David; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

   Sammanfattning : This Thesis describes the development of the KTH/Stockholm nanofabrication process for diffractive soft x-ray optics. The effort is motivated by the need for and requirement of specially designed diffractive optics and test objects for compact x-ray microscopy as well as optics for other applications such as phase imaging. LÄS MER