Results 21 to 30 of about 34,079 (254)

OPTICAL AND STRUCTURAL PROPERTIES OF OPTICAL THIN FILMS WITH VARIOUS COLUMNAR MICROSTRUCTURES

ASEAN Journal on Science and Technology for Development, 2017
In this study, optical and structural properties of the thin films prepared using glancing angle deposition (GLAD) are investigated. Various glancing angles and substrate rotations are employed to control the columnar microstructure of the films.
Seouk-Hoon Woo, Yong Jun Park, Chang Kwon Hwangbo   +2 more
doaj   +1 more source

Optical dipole anisotropy [PDF]

Monthly Notices of the Royal Astronomical Society, 1987
La distribution de la lumiere a grande echelle est illustree a l'aide de cartes de 15000 galaxies optiques environ, basees sur les catalogues UGC, ESO et MCG. L'anisotropie dipolaire de la distribution des galaxies pointe vers l=227°±23°, b=42°±8°
openaire   +1 more source

Measuring mechanical anisotropy of the cornea with Brillouin microscopy

Nature Communications, 2022
Here, Brillouin optical microscopy noninvasively visualizes microscale anisotropy of the porcine cornea owing to its lamellar fiber structure and quantifies the longitudinal moduli of the bulk tissue.
Amira M. Eltony, Peng Shao, Seok-Hyun Yun   +2 more
doaj   +1 more source

Naturally occurring van der Waals heterostructure lengenbachite with strong in-plane structural and optical anisotropy

npj 2D Materials and Applications, 2021
Lengenbachite is a naturally occurring layered mineral formed with alternating stacks of two constituent PbS-like and M2S3-like two-dimensional (2D) material layers due to the phase segregation process during the formation.
Arindam Dasgupta, Xiaodong Yang, Jie Gao
doaj   +1 more source

Multilevel Digital Algorithms for Statistical Analysis of Microscopic Images for Differentiating Temperature Changes in Polygraphic Polymers

Технологія і техніка друкарства, 2022
The materials of this article contain a concise and systematic presentation of a new theoretical and experimental approach in the development and generalization of methods for laser polarization introscopy of polycrystalline architectonics of phase ...
Олександр Володимирович Дуболазов, Ірина Василівна Солтис , Михайло Петрович Горський, Микола Миколайович Матиміш   +3 more
doaj   +1 more source

Optical anisotropy in GaSe

Crystal Research and Technology, 2005
AbstractOptical anisotropy of the layer semiconductor GaSe has been studied by photoluminescence (PL) and Fourier Transform Infrared Spectroscopy (FTIR). The PL spectra are dominated by two closely positioned emission bands resulting from the free exciton and the bound exciton connected direct band edge of GaSe.
Seyhan, A., Akmo?lu, B.G., Aslan, B., Turan, R., Karabulut, Orhan.   +4 more
openaire   +4 more sources

In Vitro Assessment of Optical Properties of Blood by Applying the Extended Huygens-Fresnel Principle to Time-Domain Optical Coherence Tomography Signal at 1300 nm

International Journal of Biomedical Imaging, 2008
A direct method for the measurement of the optical attenuation coefficient and the scattering anisotropy parameter based on applying the extended Huygens-Fresnel principle to optical coherence tomography images of blood is demonstrated.
Dan P. Popescu, Michael G. Sowa
doaj   +1 more source

Metallic Ca Aggregates Formed Along Ion Tracks and Optical Anisotropy in CaF₂ Crystals Irradiated with Swift Heavy Ions

Quantum Beam Science
It is known that swift heavy ion (SHI) irradiation induces the shape elongation of metal nanoparticles (NPs) embedded in transparent insulators, which results in anisotropic optical absorption.
Hiroshi Amekura, Norito Ishikawa, Nariaki Okubo, Feng Chen, Kazumasa Narumi, Atsuya Chiba, Yoshimi Hirano, Keisuke Yamada, Shunya Yamamoto, Yuichi Saitoh   +9 more
doaj   +1 more source

Structure–Property Relationships for Weak Ferromagnetic Perovskites

Magnetochemistry, 2021
Despite several decades of active experimental and theoretical studies of rare-earth orthoferrites, the mechanism of the formation of their specific magnetic, magnetoelastic, optical, and magneto-optical properties remains a subject of discussion.
Alexander Moskvin
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source