Time-domain spectroscopy (TDS) in the terahertz (THz) frequency range is gaining importance nondestructive testing of dielectric materials. One application layer thickness measurement a coating layer. To determine from data, refractive index must be known surveyed range. For perpendicular incidence radiation, methods exist to extract data themselves without prior knowledge. This paper extends t...

©2004, IS&T—The Society for Imaging Science and Technology Spoonhower3 have extended the Williams–Clapper model to any refractive index of the coating and for any angular measurement geometry including the integrating sphere geometry. Most printed colors are produced by halftoning, where the ink is distributed on the paper as little ink dots according to given nominal coverage values. Simple mo...

Clickable nanogel solutions were synthesized by using the copper catalyzed azide/alkyne cycloaddition (CuAAC) to partially polymerize solutions of azide and alkyne functionalized poly(ethylene glycol) (PEG) monomers. Coatings were fabricated using a second click reaction: a UV thiol-yne attachment of the nanogel solutions to mercaptosilanated glass. Because the CuAAC reaction was effectively ha...

A common misconception is that alkaline textured silicon solar cell surfaces are characterised by features that are pyramidal and bounded by {111} planes. In preference to the typical approach of observing scanning electron microscope images, we analyse reflection distributions from various pyramidal textures and find that {111} faceted pyramids are a poor approximation to the features on such ...

The main advantage of Bragg reflection from a multilayer mirror as a monochromator for hard X-rays, is the higher photon flux density because of the larger spectral bandpass compared with crystal lattice reflection. The main disadvantage lies in the strong modulations of the reflected beam profile. This is a major issue for micro-imaging applications, where multilayer-based monochromators are f...

The radar cross-section patterns of lossy dihedral corner reflectors are calculated using a uniform geometrical theory of diffraction for impedance surfaces. All terms of up to third order reflections and diffractions are considered for patterns in the principal plane. The surface waves are included whenever they exist for reactive surface impedances. The dihedral corner reflectors examined hav...

0= 85° onto a smooth surface, such as glass, possessed a high absorption characteristic of an aggregated structure (Fig. 4.), but diffuse reflection was not present. When, however, a film of 2.7,ug/cm 2 was deposited at 850 onto an aluminum film (16,ig/cm), which had been deposited at normal incidence, a strong decrease in specular reflectivity for the blue was obtained. Both aluminum films wer...