Nematic liquid crystal alignment on chemical patterns [PDF]
Patterned Self-Assembled Monolayers (SAMs) promoting both homeotropic and planar degenerate alignment of 6CB and 9CB in their nematic phase, were created using microcontact printing of functionalised organothiols on gold films.
Acher O. +46 more
core +1 more source
Manganese-doped indium tin oxide (ITO) thin films (0–12.8 at% Mn) were deposited by DC magnetron sputtering. The structural, electrical, and optical properties of the films were studied.
Masoud Kaveh +5 more
doaj +1 more source
Data Acquisition of TiO2 for Optical Material by using Spectroscopic Ellipsometry Technique [PDF]
An Ellipsometric experimental set up of SOPRA ES4G type with a powerfulWVASE software for the theoretical calculus of the Ellipsometry parameters. TheEllipsometry Technique can determine amplitude and phase information Ψ( and Δ)dependent on wavelength ...
Asad Sabih Mohammad Raouf
doaj +1 more source
Color Engineering of Silicon Nitride Surfaces to Characterize the Polydopamine Refractive Index [PDF]
A simple methodology to generate polydopamine (PDA) surfaces featured with color due to thin-film interference phenomena is presented. It is based on depositing ultra-thin films of polydopamine on a Si/Si 3 N 4 wafer that exhibits an interferential ...
Marcelo, Gema +4 more
core +1 more source
Magneto-Ellipsometry Investigations of Multilayer Nanofilms of Fe and Co [PDF]
Spectral ellipsometry technique is demonstrated to be a useful tool for the investigation of optical and magneto-optical parameters of magnetic heterostructures. Ellipsometry parameters ψ, Δ were measured in the range of 350-1000 nm.
A.T. Morchenko +7 more
doaj
The Lyddane-Sachs-Teller relationship for polar vibrations in materials with monoclinic and triclinic crystal systems [PDF]
A generalization of the Lyddane-Sachs-Teller relation is presented for polar vibrations in materials with monoclinic and triclinic crystal systems. The generalization is derived from an eigen displacement vector summation approach, which is equivalent to
Schubert, Mathias
core +3 more sources
Reflectivity from electrochemically protected Nb surfaces
Corrosion resistance of fine mechanically polished and electro-polished Nb surfaces were tested by elliposmetric measurements the reflectivity at various angle of incidence.
Irena Mickova
doaj +1 more source
Temperature dependent optical constants for SiO2 film on Si substrate by ellipsometry
In situ ellipsometry measurements in the spectra range from 246 to 1000 nm were performed on a SiO _2 /Si system at temperatures varying from 25 to 600 °C.
Junbo Gong +5 more
doaj +1 more source
Dipole-active optical phonons in YTiO_3: ellipsometry study and lattice-dynamics calculations
The anisotropic complex dielectric response was accurately extracted from spectroscopic ellipsometry measurements at phonon frequencies for the three principal crystallographic directions of an orthorhombic (Pbnm) YTiO_3 single crystal.
A. A. Mozhegorov +11 more
core +1 more source
Ellipsometry and optical spectroscopy of low-dimensional family TMDs
Here, we report a comprehensive study of fundamental optical properties of two-dimensional materials. These properties have been ascertained using spectroscopic ellipsometry, optical spectroscopy of Raman scattering, and photoluminescence.
V.G. Kravets +3 more
doaj +1 more source

