Propagation-based phase-contrast enhancement of nanostructure images using a debris-free femtosecond-laser-driven cluster-based plasma soft x-ray source and an LiF crystal detector.
We demonstrate in-line phase-contrast imaging of nanothickness foils by using a relatively large, polychromatic, debris-free femtosecond-laser-driven cluster-based plasma soft x-ray source, and a high-resolution, large dynamic range LiF crystal detector. The spatial coherence length of radiation in our setup reached a value of 5 microm on the sample plane, which is enough to observe phase-contrast enhancement in the images registered by the detector placed only a few hundred micrometers behind the object. We have developed a tabletop soft x-ray emission source, which emits radiation within a 4pi sr solid angle, and which allows one to obtain contact and propagation-based phase-contrast imaging of nanostructures with 700 nm spatial resolutions. This advance could be of utility for metrology applications.
Pikuz
Tatiana A
TA
Kansai Photon Science Institute (KPSI), Japan Atomic Energy Agency (JAEA), Kizugawa-shi, Kyoto, Japan.
Faenov
Anatoly Ya
AY
Gasilov
Sergei V
SV
Skobelev
Igor Yu
IY
Fukuda
Yuji
Y
Kando
Masaki
M
Kotaki
Hideyuki
H
Homma
Takayuki
T
Kawase
Keigo
K
Hayashi
Yukio
Y
Kawachi
Tetsuya
T
Daido
Hiroyuki
H
Kato
Yoshiaki
Y
Bulanov
Sergei V
SV