title: SNOM images of X-ray radiographs at nano-scale stored in a thin layer of lithium fluoride.
abstract: In this work, we report a method to observe soft X-ray radiographs at nanoscale of various kind of samples, biological and metallic, stored in a thin layer of lithium fluoride, employing scanning near-field optical microscopy with an optical resolution that reaches 50 nm. Lithium fluoride material works as a novel image detector for X-ray nano-radiographs, due to the fact that extreme ultraviolet radiation and soft X-rays efficiently produce stable point defects emitting optically stimulated visible luminescence in a thin surface layer. The bi-dimensional distribution of the so-created defects depends on the local nanostructure of the investigated sample.
authors.affiliation: CNR, Istituto di Struttura della Materia, Via del fosso del cavaliere, 100, 00133 Rome, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Oliva
authors.forename: A
authors.initials: A
authors.lastname: Ustione
authors.forename: S
authors.initials: S
authors.lastname: Almaviva
authors.forename: G
authors.initials: G
authors.lastname: Baldacchini
authors.forename: F
authors.initials: F
authors.lastname: Bonfigli
authors.forename: F
authors.initials: F
authors.lastname: Flora
authors.forename: A
authors.initials: A
authors.lastname: Lai
authors.forename: R M
authors.initials: RM
authors.lastname: Montereali
authors.forename: A Ya
authors.initials: AY
authors.lastname: Faenov
authors.forename: T A
authors.initials: TA
authors.lastname: Pikuz
authors.forename: M
authors.initials: M
authors.lastname: Francucci
authors.forename: P
authors.initials: P
authors.lastname: Gaudio
authors.forename: S
authors.initials: S
authors.lastname: Martellucci
authors.forename: M
authors.initials: M
authors.lastname: Richetta
authors.forename: L
authors.initials: L
authors.lastname: Reale
authors.forename: A
authors.initials: A
authors.lastname: Cricenti
mesh_terms: D003460:Crystallization; D005459:Fluorides; D018020:Lithium Compounds; D018613:Microscopy, Confocal; D008856:Microscopy, Fluorescence; D020527:Microscopy, Scanning Probe; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods; D031658:Olea / Q000648:ultrastructure; D011058:Pollen / Q000648:ultrastructure; D011859:Radiography / Q000295:instrumentation / Q000379:methods; D014965:X-Rays
chemical_list: D018020:Lithium Compounds; C027651:lithium fluoride; D005459:Fluorides