We report the first demonstration of resonant x-ray diffraction microscopy for element specific imaging of buried structures with a pixel resolution of approximately 15 nm by exploiting the abrupt change in the scattering cross section near electronic resonances. We performed nondestructive and quantitative imaging of buried Bi structures inside a Si crystal by directly phasing coherent x-ray d...

Measurement of InAsSb bandgap energy and InAs/InAsSb band edge positions using spectroscopic ellipsometry and photoluminescence spectroscopy" The structural and optical properties of lattice-matched InAs 0.911 Sb 0.089 bulk layers and strain-balanced InAs/InAs 1Àx Sb x (x $ 0.1–0.4) superlattices grown on (100)-oriented GaSb substrates by molecular beam epitaxy are examined using X-ray diffract...

The Kobayashi potential in electromagnetic theory is reviewed. As an illustration we consider two problems, diffraction of plane wave by disk and rectangular plate of perfect conductor. Some numerical results are compared with approximated and experimental results when they are available to verify the validity of the present method. We think the present method can be used as reference solutions...

Many methods for the computation of edge-diffraction impulse responses are based on the Biot-Tolstoy solution, an explicit, continuous-time expression for diffraction by an infinite wedge. This expression contains two singularities at the onset of the impulse response: one which is present for all source-receiver combinations, and a second which occurs only when a receiver moves across a specul...

We present an algorithm for interactive computation of diffraction paths for geometric-acoustics in complex environments. Our method extends ray-frustum tracing [Lauterbach et al. 2007] to efficiently compute volumetric regions of the sound field caused by long diffracting edges. We compute accurate diffraction paths from each source to the listener and based on the Uniform Theory of Diffractio...

In recent years, a novel technique has been developed to study the kinetics of structural phase transitions in solids. The method is based on the Bragg-edge phenomenon associated with the transmission of thermal neutrons through a material. In a transmitted spectrum the neutrons that have interacted with the sample are missing, and it is possible to derive information concerning the structure o...

In this paper, tetragonal chalcopyrite (CIGS) Cu(InxGa1-x)Se2 with x=0, 0.5, 0.8, 1 are synthesized by heating-up method. These nanoparticle structures differ in morphology and absorption properties due to the synthesis temperatures of 250, 255, 260, 265, 270 and 280 ºC, and gallium molar ratio over the total gallium and indium contents. These features are studied using scanning electron m...