EXPERIMENTAL STUDIES OF EVANESCENT WAVE COUPLING INTO A THIN‐FILM WAVEGUIDE

1970 ◽  
Vol 16 (5) ◽  
pp. 198-200 ◽  
Author(s):  
J. E. Midwinter ◽  
F. Zernike
Keyword(s):  
Thin Film ◽  
Evanescent Wave ◽  
Experimental Studies ◽  
Wave Coupling

ИССЛЕДОВАНИЕ МАГНИТОРЕЗИСТИВНЫХ НАНОСТРУКТУР С МАГНИТОСТРИКЦИОННЫМ ЭФФЕКТОМ ДЛЯ УСТРОЙСТВ МАГНИТНОЙ СТРЕЙНТРОНИКИ

2020 ◽  
Vol 96 (3s) ◽  
pp. 420-423
Author(s):  
Д.А. Жуков ◽  
В.В. Амеличев ◽  
Д.В. Костюк ◽  
А.И. Крикунов ◽  
Д.В. Васильев ◽  
...  
Keyword(s):  
Thin Film ◽  
Experimental Studies ◽  
Silicon Substrates ◽  
Multilayer Nanostructures ◽  
Magnetoresistive Effect ◽  
Anisotropic Magnetoresistive Effect

Представлены результаты экспериментальных исследований магнитострикционных и магниторезистивных свойств тонкопленочных многослойных наноструктур Ta/FeNiCo/CoFe/Ta и Ta/FeNiCo/CoFeВ/Ta на окисленных кремниевых подложках диаметром 100 мм. Экспериментально установлена зависимость величины анизотропного магниторезистивного эффекта от величины механических деформаций в экспериментальных образцах наноструктур. The paper presents the results of experimental studies of the magnetostriction and magnetoresistive properties of thin-film multilayer nanostructures Ta/FeNiCo/CoFe/Ta and Ta/FeNiCo/CoFeB/Ta on oxidized silicon substrates with a diameter of 100 mm. The dependence of the magnitude of the anisotropic magnetoresistive effect on the magnitude of mechanical strains in experimental samples of nanostructures has been experimentally established.

Phase-locked pair of terahertz quantum cascade lasers through evanescent-wave coupling

2020 ◽  
Vol 109 ◽  
pp. 103427
Author(s):  
Chang Gaolei ◽  
Zhu Huan ◽  
Yu Chenren ◽  
Zhu Haiqing ◽  
Xu Gangyi ◽  
...  
Keyword(s):  
Evanescent Wave ◽  
Quantum Cascade Lasers ◽  
Wave Coupling ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals Unidirectional evanescent-wave coupling from circularly polarized electric and magnetic dipoles: An angular spectrum approach

2017 ◽  
Vol 95 (24) ◽  
Author(s):  
Michela F. Picardi ◽  
Alejandro Manjavacas ◽  
Anatoly V. Zayats ◽  
Francisco J. Rodríguez-Fortuño
Keyword(s):  
Evanescent Wave ◽  
Angular Spectrum ◽  
Wave Coupling ◽  
Magnetic Dipoles ◽  
Circularly Polarized

Reactive Phase Formation in Thin Films: Evolution of Grain Structure

1995 ◽  
Vol 403 ◽  
Author(s):  
K. Barmak ◽  
C. Michaelsent ◽  
J. Rickman ◽  
M. Dahmstt
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Formation ◽  
Experimental Studies ◽  
Grain Structure ◽  
Structure Evolution ◽  
Future Research ◽  
Polycrystalline Materials ◽  
Product Phase ◽  
Nucleation Kinetics

AbstractIt is a well known fact that the properties and performance of polycrystalline materials, including polycrystalline thin films, are strongly affected by the grain structure. Therefore, in treating reactive phase formation in these films, it is (or it will inevitably be) necessary to quantify the grain structure of reactant and product phases and its evolution during the course of the reaction. Theoretical models and the conventional view of thin film reactions, however, have been largely extensions, to small and finite dimensions, of theories and descriptions developed for bulk diffusion couples. These models and descriptions primarily focus on the growth stage and to a much lesser extent on the nucleation stage. Consequently, these models and descriptions are not able to treat the development of product phase grain structure. Recent calorimetric investigations of several thin film systems demonstrate the importance of nucleation kinetics (and hence nucleation barriers) in product phase formation and provide quantitative measures of the thermodynamics and kinetics of formation of the product phases, thereby allowing some degree of comparison with reaction models. Furthermore, microstructural investigations of thin-film reactions demonstrate the non-planarity of the growth front and highlight the role of reactant-phase grain boundaries. In this paper, a summary of these experimental studies and recent theoretical treatments, which combine nucleation and growth in an integrated manner, is presented, with particular emphasis on the Nb/Al system. These experiments and models lead to a new view of reactive phase formation and grain structure evolution as one in which the latter is an integral part of the former. Based on this view, directions for future research are discussed.

EXPERIMENTAL STUDIES OF THE INFLUENCE OF THIN-FILM COATINGS ON THE RESISTANCE OF THE TOOL

2020 ◽  
Vol 5 ◽  
pp. 55-60
Author(s):  
G.V. BARSUKOV ◽  
A.V. KIRICHEK ◽  
K.F. SELEMENEV ◽  
E.M. SELEMENEVA
Keyword(s):  
Thin Film ◽  
Experimental Studies ◽  
Cutting Fluids ◽  
Adhesive Interaction ◽  
Film Coatings ◽  
Thin Film Coatings ◽  
Rigid Contact

The article deals with the problems of increasing the efficiency of centrifugal processing with a rigid contact. It is shown that when materials with different properties interact, it is energetically "advantageous" to have a discontinuous contact between interacting elements of the surfaces of the tool and the part. It has been established that epilating the working surfaces of the tool significantly changes the nature of the resistance to adhesive interaction, the effectiveness of which is significantly increased when using cutting fluids (lubricating and cooling technological media).

VOCs Detection Based on Evanescent Wave Coupling of Dye-Coated Optical Fiber

2015 ◽  
Vol 15 (5) ◽  
pp. 3021-3025 ◽  
Author(s):  
Se-Hyuk Yeom ◽  
Byoung-Ho Kang ◽  
Chang-Taek Seo ◽  
Dong-Ic Lee ◽  
Han-Jae Shin ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Wave Coupling

SERS of a-C Thin Film on Ag, Au, Ag0.52-Au0.48 Alloy Nanoparticle Arrays with Normal Particles Size Distribution Formed by Vacuum Thermal Evaporation

2018 ◽  
Vol 386 ◽  
pp. 250-255 ◽  
Author(s):  
Sergey Dubkov ◽  
Alexey Trifonov ◽  
Yuri Shaman ◽  
Evgeny Kitsyuk ◽  
Andrey Savitskiy ◽  
...  
Keyword(s):  
Thin Film ◽  
Particle Size ◽  
Raman Scattering ◽  
Size Distribution ◽  
Thermal Evaporation ◽  
Experimental Studies ◽  
Alloy Nanoparticles ◽  
Nanoparticle Arrays ◽  
Vacuum Thermal Evaporation ◽  
Particles Size Distribution

This paper presents the results of experimental studies of arrays of Ag0.52Au0.48 alloy nanoparticles. Arrays were formed by vacuum-thermal evaporation on an unheated substrate and subsequent low-temperature vacuum annealing. The TEM images of the obtained nanoparticle arrays and corresponding histograms of particle size distribution are shown. The transmission spectra of these arrays showing the displacement of the plasma frequency as a function of the mean particle size are obtained. Spectra of Raman scattering from a thin film of amorphous carbon in presence of AgAu particles are obtained, and a comparative analysis of Raman scattering amplification factors for pure Ag, pure Au and Ag0.52Au0.48 alloy nanoparticles is presented.

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