Optical properties of variable-composition gadolinium selenide in the fundamental and infrared absorption regions

1980 ◽  
Vol 19 (12) ◽  
pp. 834-836
Author(s):  
L. A. Ivanchenko ◽  
T. M. Mikhlina ◽  
V. A. Obolonchik ◽  
V. A. Serdyuk ◽  
A. S. Knyazev ◽  
...  
Keyword(s):  
Optical Properties ◽  
Infrared Absorption ◽  
Variable Composition

Effects of Helical Distortions on the Optical Properties of Amide NH Infrared Absorption in Short Peptides in Solution

2002 ◽  
Vol 106 (22) ◽  
pp. 5733-5738 ◽  
Author(s):  
B. Pispisa ◽  
A. Palleschi ◽  
L. Stella ◽  
M. Venanzi ◽  
C. Mazzuca ◽  
...  
Keyword(s):  
Optical Properties ◽  
Infrared Absorption ◽  
Short Peptides

scholarly journals Cesium polytungstates with blue-tint-tunable near-infrared absorption

RSC Advances ◽  
2020 ◽  
Vol 10 (18) ◽  
pp. 10491-10501
Author(s):  
Satoshi Yoshio ◽  
Masao Wakabayashi ◽  
Kenji Adachi
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
Infrared Absorption ◽  
Near Infrared

Revisiting Wöhler's method (1824), Cs-doped tungsten bronzes were synthesized by reducing Cs-polytungstate at high temperature, and were pulverized into nanoparticles for determining their optical properties.

OPTICAL SPECTROSCOPY AND NONLINEAR TRANSMITTANCE STUDY OF FULLERENE C60 IN MIXTURES WITH 2-CYCLOOCTYLAMINO-5-NITROPYRIDINE (COANP)

2004 ◽  
Vol 13 (01) ◽  
pp. 113-127 ◽  
Author(s):  
SERGEY S. SARKISOV ◽  
ELENA I. RADOVANOVA ◽  
BURL H. PETERSON ◽  
ALEX LEYDERMAN ◽  
MICHAEL CURLEY ◽  
...  
Keyword(s):  
Optical Properties ◽  
Absorption Spectrum ◽  
Optical Absorption ◽  
Infrared Absorption ◽  
Chemical Bonding ◽  
Infrared Absorption Spectrum ◽  
Visible Region ◽  
Fullerene C60 ◽  
Amino Group

Characterization of the infrared absorption spectrum of the solutions of fullerene C 60 with 2-cyclooctylamino-5-nitropyridine additive has been performed with the focus on possible bonding with the amino-group of the additive. No occurrence of such bonding was found at normal conditions. Also no change of optical absorption in visible region and optical limiting of fullerene due to chemical bonding with the additive was detected. The resulting optical properties of the mixture were simply a sum of the properties of the components for a molar proportion of the additive to fullerene approaching 200:1.

scholarly journals Structural particularities and optical properties of lithium niobate single crystals grown from the charge doped by boron.

2020 ◽  
Vol 11 (3-2020) ◽  
pp. 189-195
Author(s):  
R. A. Titov ◽  
◽  
N. V. Sidorov ◽  
N. A. Teplyakova ◽  
M. N. Palatnikov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Light Scattering ◽  
Lithium Niobate ◽  
Distribution Coefficient ◽  
Single Crystals ◽  
Infrared Absorption ◽  
Cation Sublattice ◽  
Structural Units ◽  
Photoinduced Light Scattering ◽  
Laser Conoscopy

The analysis of structural particularities and optical properties of LiNbO3 : B (0,55, 0,69 and 0,83 mol. % B2O3) was performed by methods of Raman and photoinduced light scattering, infrared absorption and laser conoscopy. It has been established that the boron impurity brings to 1 the distribution coefficient of lithium and niobium in the growing process. Thus, LiNbO3: B crystals grown from a congruent melt approach the stoichiometric crystals in ordering the structural units of the cation sublattice and the Li / Nb ratio.

scholarly journals Morphology and Optical Properties of Nanostructures Formed in Non-Stoichiometric CdI2 Crystals

2018 ◽  
Vol 63 (9) ◽  
pp. 816 ◽  
Author(s):  
I. M. Bolesta ◽  
I. N. Rovetskii ◽  
S. R. Velgosh ◽  
S. V. Rykhlyuk ◽  
I. D. Karbovnyk ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Optical Properties ◽  
Phase Composition ◽  
Infrared Absorption ◽  
Morphological Changes ◽  
Threshold Value ◽  
Optical Characteristics ◽  
Force Microscopy ◽  
Atomic Force

The morphology of nanostructures formed in non-stoichiometric CdI2 crystals has been studied, by using the atomic force microscopy methods. Morphological changes are observed, when the concentration of cadmium atoms approaches a non-stoichiometric threshold value of 0.1 mol%. The features in the phase composition of nanostructures are analyzed with the help of Raman and infrared absorption spectroscopies. The influence of the researched nanostructures on the optical characteristics of non-stoichiometric CdI2 crystals is analyzed.

scholarly journals Thin SiNC/SiOC Coatings with a Gradient of Refractive Index Deposited from Organosilicon Precursor

Coatings ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 794
Author(s):  
Hieronim Szymanowski ◽  
Katarzyna Olesko ◽  
Jacek Kowalski ◽  
Mateusz Fijalkowski ◽  
Maciej Gazicki-Lipman ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Carbon Oxide ◽  
Interference Filter ◽  
Variable Composition ◽  
Pure Oxygen ◽  
Refractive Index Gradient ◽  
Pure Nitrogen ◽  
Silicon Carbon ◽  
Smooth Change

In this work, optical coatings with a gradient of the refractive index are described. Its aim was to deposit, using the RF PECVD method, films of variable composition (ranging from silicon carbon-oxide to silicon carbon-nitride) for a smooth change of their optical properties enabling a production of the filter with a refractive index gradient. For that purpose, two organosilicon compounds, namely tetramethyldisilazane and hexamethyldisilazane, were selected as precursor compounds. The results reveal better optical properties of the materials obtained from the latter source. Depending on whether deposited in pure oxygen atmosphere or under conditions of pure nitrogen, the refractive index of the coatings amounted to 1.65 and to 2.22, respectively. By using a variable composition N2/O2 gas mixture, coatings of intermediate magnitudes of “n” were acquired. The optical properties were investigated using both UV-Vis absorption spectroscopy and variable angle spectroscopic ellipsometry. The chemical structure of the coatings was studied with the help of Fourier transform infrared and X-ray photoelectron spectroscopies. Finally, atomic force microscopy was applied to examine their surface topography. As the last step, a “cold mirror” type interference filter with a gradient of refractive index was designed and manufactured.

Optical properties of porcine dermis in the mid-infrared absorption band of glucose

The Analyst ◽  
2017 ◽  
Vol 142 (8) ◽  
pp. 1235-1243 ◽  
Author(s):  
Arthur Schönhals ◽  
Hans Tholl ◽  
Mathias Glasmacher ◽  
Niels Kröger-Lui ◽  
Annemarie Pucci ◽  
...  
Keyword(s):  
Optical Properties ◽  
Absorption Band ◽  
Quantum Cascade Laser ◽  
Infrared Absorption ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Infrared Absorption Band ◽  
Porcine Dermis

Mid-infrared absorption and scattering properties of porcine dermis are quantified using quantum cascade laser-based goniometry.

Optical Properties of SiNx Films of Variable Composition

1988 ◽  
Vol 145 (1) ◽  
pp. K71-K74 ◽  
Author(s):  
A. L. Shabalov ◽  
M. S. Feldman ◽  
M. Z. Bashirov
Keyword(s):  
Optical Properties ◽  
Variable Composition
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