21 citations · 123 across the 12 of their papers we have counts for
13 papers
Kossel interferences of proton-induced X-ray emission lines in periodic multilayers
Meiyi Wu, Karine Le Guen, Jean-Michel André +11
The Kossel interferences generated by characteristic x-ray lines produced inside a periodic multilayer have been observed upon proton irradiation, by submitting a Cr/B4C/Sc multila…
X-ray fluorescence induced by standing waves in the grazing-incidence and grazing-exit modes: study of the Mg--Co--Zr system
Yuchun Tu, Yanyan Yuan, Karine Le Guen +6
We present the characterization of Mg-Co-Zr tri-layer stacks by using x-ray fluorescence induced by x-ray standing waves, both in the grazing incidence (GI) and grazing exit (GE) m…
Kossel diffraction and photonic modes in one-dimensional photonic crystal
J. -M André, Philippe Jonnard, K. Le Guen +1
Kossel diffraction under standing-wave excitation in a one-dimensional photonic crystal is investigated. It is shown that by combining the reciprocity theorem, the Fermi golden rul…
Interface observation of heat-treated Co/Mo2C multilayers
Yanyan Yuan, Karine Le Guen, Jean-Michel André +6
We study the interface evolution of a series of periodic Co/Mo2C multilayers as a function of the annealing temperature up to 600{\textdegree}C. Different complementary techniques…
Feasibility considerations of a soft-x-ray distributed feedback laser pumped by an x-ray free electron laser
Jean-Michel André, Karine Le Guen, Philippe Jonnard
We discuss the feasibility of a soft-x-ray distributed feedback laser (DFL) pumped by an x-ray free electron laser (X-FEL). The DFL under consideration is a Mg/SiC bi-layered Bragg…
Characterization of Al and Mg Alloys from Their X-Ray Emission Bands
Philippe Jonnard, Karine Le Guen, R. Gauvin +1
The valence states of Mg-Al alloys are compared to those of reference materials (pure Mg and Al metals, and intermetallics). Two methods based on X-ray emission spectroscopy are pr…
Spectroscopic study of interfaces in Al/Ni periodic multilayers
K. Le Guen, G. Gamblin, Philippe Jonnard +4
Using electron-induced X-ray emission spectroscopy (XES), we have studied two Al/Ni periodic multilayers that differ only by their annealing temperature: as-deposited and annealed…
Oscillating dipole model for the X-ray standing wave enhanced fluorescence in periodic multilayers
Jean-Michel André, Karine Le Guen, Philippe Jonnard
Periodic multilayers give rise to enhanced X-ray fluorescence when a regime of standing waves occurs within the structure. This regime may concern the primary radiation used to ind…
The transition from amorphous to crystalline in Al/Zr multilayers
Qi Zhong, Zhong Zhang, Shuang Ma +6
The amorphous-to-crystalline transition in Al(1.0%wtSi)/Zr and Al(Pure)/Zr multilayers grown by direct-current magnetron sputtering system has been characterized over a range of Al…
Thermally induced structural modification in the Al/Zr multilayers
Qi Zhong, Shuang Ma, Zhong Zhang +4
The effect of increasing temperature on the structural stability and interactions of two kinds of Al/Zr (Al(1%wtSi)/Zr and Al(Pure)/Zr) multilayer mirrors are investigated. All Al/…
Investigation of the thermal stability of Mg/Co periodic multilayers for EUV applications
M. -H. Hu, K. Le Guen, Jean-Michel André +11
We present the results of the characterization of Mg/Co periodic multilayers and their thermal stability for the EUV range. The annealing study is performed up to a temperature of…
On the Kramers-Kronig transform with logarithmic kernel for the reflection phase in the Drude model
J. -M. André, K. Le Guen, Philippe Jonnard +3
We use the Kramers-Kronig transform (KKT) with logarithmic kernel to obtain the reflection phase and, subsequently, the complex refractive index of a bulk mirror from reflectance.…
Introduction of Zr in nanometric periodic Mg/Co multilayers
K. Le Guen, M. -H. Hu, J. -M. André +8
We study the introduction of a third material, namely Zr, within a nanometric periodic Mg/Co structure designed to work as optical component in the extreme UV (EUV) spectral range.…