Perfect X-ray focusing via fitting corrective glasses to aberrated optics
| Autor: | Martin Wünsche, Eric Galtier, Andreas Schropp, Tobias Ullsperger, Stylianos Giakoumidis, Ulrich Vogt, Felix Wittwer, Jan Garrevoet, Ulrich Wagner, Gerald Falkenberg, Bob Nagler, Christoph Rau, Ulrike Boesenberg, Hae Ja Lee, Karolis Parfeniukas, Stefan Nolte, Christian Rödel, Christian G. Schroer, Frank Seiboth, Jussi Rahomäki, Maria Scholz |
|---|---|
| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
030103 biophysics Science Astrophysics::High Energy Astrophysical Phenomena General Physics and Astronomy Synchrotron radiation Physics::Optics 02 engineering and technology Article General Biochemistry Genetics and Molecular Biology law.invention 03 medical and health sciences Optics law Physics Multidisciplinary business.industry Strehl ratio General Chemistry 021001 nanoscience & nanotechnology Laser Ptychography Metrology Lens (optics) Wavelength ddc:500 0210 nano-technology business Gaussian beam |
| Zdroj: | Nature Communications 8, 14623 (2017). doi:10.1038/ncomms14623 Nature Communications, Vol 8, Iss 1, Pp 1-5 (2017) Nature Communications |
| Popis: | Nature Communications 8, 14623(2017). doi:10.1038/ncomms14623 Due to their short wavelength, X-rays can in principle be focused down to a few nanometres and below. At the same time, it is this short wavelength that puts stringent requirements on X-ray optics and their metrology. Both are limited by today’s technology. In this work, we present accurate at wavelength measurements of residual aberrations of a refractive X-ray lens using ptychography to manufacture a corrective phase plate. Together with the fitted phase plate the optics shows diffraction-limited performance, generating a nearly Gaussian beam profile with a Strehl ratio above 0.8. This scheme can be applied to any other focusing optics, thus solving the X-ray optical problem at synchrotron radiation sources and X-ray free-electron lasers. Published by Nature Publishing Group, London |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|