SNOM images of X-ray radiographs at nano-scale stored in a thin layer of lithium fluoride.
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.
Oliva
C
C
CNR, Istituto di Struttura della Materia, Via del fosso del cavaliere, 100, 00133 Rome, Italy.
Ustione
A
A
Almaviva
S
S
Baldacchini
G
G
Bonfigli
F
F
Flora
F
F
Lai
A
A
Montereali
R M
RM
Faenov
A Ya
AY
Pikuz
T A
TA
Francucci
M
M
Gaudio
P
P
Martellucci
S
S
Richetta
M
M
Reale
L
L
Cricenti
A
A
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
D018020:Lithium Compounds; C027651:lithium fluoride; D005459:Fluorides