TY - JOUR
T1 - Resonance modes filtering in structured x-ray waveguides
AU - Bukreeva, Inna
AU - Cedola, Alessia
AU - Sorrentino, A
AU - Pelliccia, Daniele
AU - Asadchikov, Viktor
AU - Lagomarsino, Stefano
PY - 2011
Y1 - 2011
N2 - We discuss the self-imaging effect that occurs in a multimode planar x-ray waveguide (WG) with a nanometer vacuum gap, where an additional longitudinal periodicity has been imposed by a periodical structure (a micron scale step-like grating) on the reflecting sidewalls. Taking into account the general Montgomery conditions and the particular case of Talbot effect, we show that this additional longitudinal periodicity, if suitably designed, can filter out the asymmetric and the high order resonance modes, providing a coherent beam at the exit, even if the WG is illuminated by an incoherent source
AB - We discuss the self-imaging effect that occurs in a multimode planar x-ray waveguide (WG) with a nanometer vacuum gap, where an additional longitudinal periodicity has been imposed by a periodical structure (a micron scale step-like grating) on the reflecting sidewalls. Taking into account the general Montgomery conditions and the particular case of Talbot effect, we show that this additional longitudinal periodicity, if suitably designed, can filter out the asymmetric and the high order resonance modes, providing a coherent beam at the exit, even if the WG is illuminated by an incoherent source
UR - http://www.opticsinfobase.org.ezproxy.lib.monash.edu.au/abstract.cfm?URI=ol-36-14-2602
U2 - 10.1364/OL.36.002602
DO - 10.1364/OL.36.002602
M3 - Article
VL - 36
SP - 2602
EP - 2604
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 4
ER -