**6. Holographic 3-D imaging using EUV lasers**

The possibility of volume three dimensional imaging by numerical sectioning obtained from a single high numerical aperture hologram (Wachulak et al., 2007) will be discussed in this section. Three dimensional images were obtained from Gabor holograms recorded in the photoresist after exposure using a table-top EUV laser. Digitized holograms were numerically reconstructed over the range of image planes by numerically sweeping the reconstruction distance, resulting in numerical optical sectioning of image depths.
