Results 21 to 30 of about 57,474 (219)

Nematic liquid crystal alignment on chemical patterns [PDF]

open access: yes, 2007
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

Ellipsometry, transmission, and photoluminescence characterization of Mn-doped ITO thin films deposited by DC magnetron sputtering

open access: yesMaterials Research Express, 2023
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]

open access: yesEngineering and Technology Journal, 2010
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]

open access: yes, 2018
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]

open access: yesЖурнал нано- та електронної фізики, 2013
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]

open access: yes, 2016
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

open access: yesZaštita Materijala, 2015
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

open access: yesMaterials Research Express, 2017
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

open access: yes, 2008
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

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2017
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

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