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Dresden 2003 – wissenschaftliches Programm

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O: Oberflächenphysik

O 12: Postersitzung (Struktur und Dynamik reiner Oberfl
ächen, Grenzfl
äche fest-flüssig, Nanostrukturen, Teilchen und Cluster, Halbleiteroberfl
ächen und Grenzfl
ächen, Zeitaufgelöste Spektroskopie, Rastersondentechniken, Methodisches)

O 12.58: Poster

Montag, 24. März 2003, 18:00–21:00, P1

Focusing and imaging with photon sieves — •M. Kalläne1, S. Harm1, M. Skibowski1, R. L. Johnson2, R. Seemann3, and L. Kipp11Institut für Experimentelle und Angewandte Physik, Universität Kiel, D-24098 Kiel, Germany — 2Institut für Experimentalphysik, Universität Hamburg, D-22761 Hamburg, Germany — 3Niedmers & Seemann, European Attorneys, D-22767 Hamburg, Germany

Photon sieves consisting of a large number of pinholes appropriately distributed over the Fresnel zones focus electromagnetic radiation effectively [1] and provide new design options for high-power VUV optics. As part of the program to develop photon sieves for VUV FEL radiation [2] we have lithographically fabricated prototypes optimized for 600 nm and 254 nm. The performance of these photon sieves and first results from a photon-sieve microscope will be presented.

[1] L. Kipp, M. Skibowski, R.L. Johnson, R. Berndt, R. Adelung, S. Harm and R. Seemann, Nature 414, 184 (2001)

[2] A free-elecron laser (FEL) delivering transversal coherent radiation in the vacuum ultraviolet regime with photon energies up to several 100 eV is currently under construction at the Hamburg Synchrotron Radiation Laboratory HASYLAB/DESY. Work supported by the BMBF proj. 05 KS1 FK1

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