Here we show a new, simple method to observe soft x-ray microradiographs of biological material. A thin film of lithium fluoride (LiF) works as image detector, storing the microradiograph obtained exposing biological samples to extreme ultraviolet and soft x-ray radiations. To read the stored image, collecting the optically stimulated visible luminescence emitted by the LiF active color centers locally produced by the x rays, a scanning near-field optical microscope is used with an optical aperture of 50 nm, i.e., λ12, where λ is the wavelength of the collected photoluminescence. © 2006 American Institute of Physics.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Ustione, A., Cricenti, A., Bonfigli, F., Flora, F., Lai, A., Marolo, T., ... Reale, L. (2006). Scanning near-field optical microscopy images of microradiographs stored in lithium fluoride films with an optical resolution of λ12. Applied Physics Letters, 88(14), -. . https://doi.org/10.1063/1.2193654