Concept
Diffraction
Related publications (723)
Pressure dependence of the magnetic order in CrAs: A neutron diffraction investigation
Henrik Moodysson Rønnow, Jonathan White, Peter Babkevich
The suppression of magnetic order with pressure concomitant with the appearance of pressure-induced superconductivity was recently discovered in CrAs. Here we present a neutron diffraction study of the pressure evolution of the helimagnetic ground state to ...
2015Methods and apparatus for imaging with multimode optical fibers
Demetri Psaltis, Christophe Moser, Ioannis Papadopoulos, Salma Farahi
A multimode waveguide illuminator and imager relies on a wave front shaping system that acts to compensate for modal scrambling and light dispersion by the multimode waveguide. A first step consists of calibrating the multimode waveguide and a second step ...
2015Research in the field of single biopolymers using scanning probe microscopy
Current thesis is devoted to the investigation of biopolymers using AFM, a well established and widely used technique. To begin with, we studied processing of AFM images and its automation. Our software product, DNA Trace, permit one to quickly extract sci ...
EPFL20152D Fourier Transform Spectroscopy Setup and Ultrafast Dynamics of Porphyrins
The first section of the thesis discusses the development and implementation of a two dimensional Fourier transform spectroscopy setup, that permits the recording of electronic 2D spectra in the visible regime. A hollow core fiber was used to generate broa ...
EPFL2015Structural disorder versus chiral magnetism in
The crystal structure of a disordered form of Cr1/3NbS2 has been characterized using diffraction and inelastic scattering of synchrotron radiation. In contrast to the previously reported symmetry (P6322), the crystal can be ...
2015Circuit-Model Analysis of Frequency Selective Surfaces With Scatterers of Arbitrary Geometry
Juan Ramon Mosig, Maria Garcia Vigueras
An equivalent-network model is here proposed to characterize two-dimensional planar periodic arrays of arbitrary scatterers/apertures embedded in a layered environment. The model is an extension of the approach previously developed by some of the authors, ...
Institute of Electrical and Electronics Engineers2015High-fidelity visualization of formation of volume nanogratings in porous glass by femtosecond laser irradiation
Yves Bellouard, Min Huang, Ya Cheng
Formation of self-organized nanogratings in bulk glasses with femtosecond laser pulses is one of the most intriguing phenomena in the interactions of light with transparent materials. With the feature sizes far beyond the optical diffraction limit, these n ...
2015Optical microscopy using a glass microsphere for metrology of sub-wavelength nanostructures
A technique that allows direct optical imaging of nanostructures and determines quantitatively geometric nanofeatures beyond the classical diffraction limit by using high-refractive index glass microspheres is introduced. The glass microsphere is put on a ...
Elsevier20152D zeolite coatings: Langmuir-Schaefer deposition of 3 nm thick MFI zeolite nanosheets
Kumar Varoon Agrawal, Prashant Kumar
Stable suspensions of zeolite nanosheets (3 nm thick MFI layers) were prepared in ethanol following acid treatment, which partially removed the associated organic structure-directing agent. Nanosheets from these suspensions could then be dispersed at the a ...
2015Multilevel Micro-Structuring of Glassy Carbon Molds for Precision Glass Molding
Hans Peter Herzig, Toralf Scharf, Karin Prater
Replication techniques for diffractive optical elements (DOEs) in soft materials such as plastic injection molding are state of the art. For precision glass molding in glasses with high transition temperatures, molds with extreme thermal resistivity, low c ...
Spie-Int Soc Optical Engineering2015