High resolution, stigmatic optical reconstruction of X-ray Gabor holograms

Issue		Ann. Phys. Fr. Volume 24, Number 3, 1999


Page(s)		5 - 19
DOI		http://dx.doi.org/10.1051/anphys:199903002

Ann. Phys. Fr., Vol. 24, N°3 1999, pp. 5-19
DOI: 10.1051/anphys:199903002

High resolution, stigmatic optical reconstruction of X-ray Gabor holograms

D. Joyeux¹ and F. Polack²

¹ Institut d'Optique, B.P. 147, 91403 Orsay Cedex, France
² LURE, Campus d'Orsay, bâtiment 209d, 91405 Orsay Cedex, France

Abstract
We investigate the conditions of optical ( $\lambda_c \geq 0.2 \mu$ m) reconstruction of X-ray ( $\lambda_x \approx 4.4$ nm) Gabor holograms, for the highest possible resolution. First, a careful theoretical analysis shows that, in this particular case, the resolution limit (in the object plane) allowed by diffraction can be as small as $\lambda_c /4$ . Then, we derive the structure and specification of a dedicated optical system, for a diffraction limited reconstructed image, with a magnification of 180, and an object resolution of $\lambda_c /3$ ( $\lambda_c = 0.244 \mu$ m).

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