Results 21 to 30 of about 129,666 (261)

Influence of Softening Temperature of Azobenzene Polymers and External Electric Field on Diffraction Efficiency of Polarization Holograms

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2017
Growth of the diffraction efficiency and recording velocity was found in the films of copolymers 4-((2- nitrophenyl) diazeniyl)phenylmethacrylate) with octylmethacrylate at room temperature holographic recording for copolymer with less softening ...
Nicolay Davidenko, Irina Davidenko, Nicolay Kuranda, Elena Mokrinskaya, Valeriy Pavlov, Viacheslav Solntsev, Sergey Studzinsky, Vladimir Syromyatnikov, Vitaliy Tarasenko, Nicolay Chuprina   +9 more
doaj   +1 more source

Surface-Impedance Formulation for Hollow-Core Waveguides Based on Subwavelength Gratings

IEEE Access, 2022
A rigorous Surface Impedance (SI) formulation for planar waveguides is presented. This modal technique splits the modal analysis of the waveguide in two steps.
Angela Coves, Haroldo Maestre, Raimon Archiles, Miguel V. Andres, Benito Gimeno   +4 more
doaj   +1 more source

Two-Dimensional Polarization Holographic Gratings in Azopolymer Thin Films: Polarization Properties in the Presence or Absence of Surface Relief

Photonics, 2023
During polarization holographic recording in azopolymer thin films, usually together with the volume anisotropic grating, a surface relief grating (SRG) is also formed.
Georgi Mateev, Lian Nedelchev, Ludmila Nikolova, Branimir Ivanov, Velichka Strijkova, Elena Stoykova, Kihong Choi, Joongki Park, Dimana Nazarova   +8 more
doaj   +1 more source

The measurement of the vertical relief on metal-graphic microscopes of production of OJC «Optoelectronic systems»

Литьë и металлургия, 2019
The possibilities of measuring the depth of the surface relief on metallographic microscopes manufactured by OJSC «Optoelectronic systems» are illustrated.
A. G. Anisovich, A. S. Buinitskaya
doaj   +1 more source

Formation Mechanism for Upland Low-Relief Surface Landscapes in the Three Gorges Region, China

Remote Sensing, 2020
Extensive areas with low-relief surfaces that are almost flat surfaces high in the mountain ranges constitute the dominant geomorphic feature of the Three Gorges area.
Lingyun Lv, Lunche Wang, Chang’an Li, Hui Li, Xinsheng Wang, Shaoqiang Wang   +5 more
doaj   +1 more source

Amorphous and anisotropic surface relief formation in tungsten under repeated high-flux hydrogen plasma loads

Nuclear Materials and Energy, 2023
Facing extreme plasma loads, the structural integrity of the tungsten divertor is crucial for ITER, an engineering marvel in nuclear fusion reactors, to achieve its fusion performance targets.
Yu Li, Junhua Hou, Varun Shah, Yuhe Huang, Johannes A.W. van Dommelen, Wenjun Lu, Qiang Zhu, Thomas W. Morgan   +7 more
doaj   +1 more source

Direct Magnetic Relief Recording Using As40S60: Mn–Se Nanocomposite Multilayer Structures

Nanoscale Research Letters, 2017
Processes of holographic recording of surface relief structures using As2S3:Mn–Se multilayer nanostructures as registering media were studied in this paper.
A. Stronski, E. Achimova, O. Paiuk, A. Meshalkin, A. Prisacar, G. Triduh, P. Oleksenko, P. Lytvyn   +7 more
doaj   +1 more source

The Epitaxial Growth of Ge and GeSn Semiconductor Thin Films on C-Plane Sapphire

Crystals
Ge1−xSnx growth on a new sapphire platform has been demonstrated. This involved the growth of GeSn on Ge/GaAs layers using the algorithm developed. The resultant growths of Ge on GaAs/AlAs/sapphire and Ge1−xSnx on Ge/GaAs/AlAs/sapphire were investigated ...
Emmanuel Wangila, Calbi Gunder, Petro M. Lytvyn, Mohammad Zamani-Alavijeh, Fernando Maia de Oliveira, Serhii Kryvyi, Hryhorii Stanchu, Aida Sheibani, Yuriy I. Mazur, Shui-Qing Yu, Gregory Salamo   +10 more
doaj   +1 more source

Graphical documentation of antic relief surfaces

Journal of Cultural Heritage, 2016
Abstract Hittites were the people who are most likely of Northern Caucasus origin, who lived in Anatolia in the ancient ages. Hittites go by the name Heth and Hittim in the Bible. Hittites have spread from the North Caucasus to Anatolia and to Middle East in the early 2000 B.C. The Kingdom of the Hittites has maintained its presence in Anatolia until
Ahmet Emin Karkınlı, Pınar Civicioglu, Erkan Beşdok, Abdüsselam Kesikoğlu, Levent Çoruh, Emre Tercan   +5 more
openaire   +4 more sources

Noise minimised high resolution digital holographic microscopy applied to surface topography [PDF]

Компьютерная оптика, 2018
The topography of surface relief gratings was studied by digital holographic microscopy. The applicability of the method for quantitative measurements of surface microstructure at nanoscale was demonstrated.
Elena Achimova, Vladimir Abaskin, Daniel Claus, Giancarlo Pedrini, Igor Shevkunov, Vladimir Katkovnik   +5 more
doaj   +1 more source