Effect of infrared radiation on the spectral characteristics of the electroluminescence of ZnS � Cu single crystal

1975 ◽  
Vol 18 (3) ◽  
pp. 427-428
Author(s):  
A. M. Nemchenko
Keyword(s):  
Single Crystal ◽  
Infrared Radiation ◽  
Spectral Characteristics

scholarly journals Improving anti-infrared radiation and heat insulation by potassium hexatitanate whisker-doped Al 2 O 3 –SiO 2 composite xerogel

2018 ◽  
Vol 5 (12) ◽  
pp. 180787
Author(s):  
Liang Furong ◽  
Liu Weijun ◽  
Han Xiuxiu ◽  
Zhang Boru ◽  
Zhang Shuhua
Keyword(s):  
Thermal Conductivity ◽  
Infrared Radiation ◽  
Near Infrared ◽  
Raw Materials ◽  
Sol Gel ◽  
Spectral Characteristics ◽  
Molar Ratio ◽  
Thermal Insulating ◽  
Infrared Spectral ◽  
Potassium Hexatitanate

Taking potassium hexatitanate whisker (PTW) modified by silane coupling agent KH550, aluminium nitrate inorganic salt and tetraethyl orthosilicate and deionized water, respectively, as infrared sunscreen, aluminium source and raw materials forming the network structure of a composite xerogel, a series of structurally intact PTW-doped Al 2 O 3 –SiO 2 composite xerogel thermal-insulating materials were prepared by the sol–gel method and dried under atmospheric pressure. The infrared spectral characteristics, infrared radiation transmittance, microstructures, morphology and thermal conductivity of different composite materials prepared have been determined by a Fourier transform infrared spectrometer, UV–visible–near-infrared spectrophotometer, X-ray diffractometer, scanning electron microscope and thermal conductivity tester. The results exhibit that when the Al to Si molar ratio is 1 : 9, the composite material with 5 wt% modified PTW shows the best infrared radiation blocking performance and the lowest thermal conductivity (0.0604 W m −1 K −1 ).

Ca10Li(VO4)7:Nd3+, a promising laser material: growth, structure and spectral characteristics of a Czochralski-grown single crystal

2016 ◽  
Vol 445 ◽  
pp. 101-107 ◽  
Author(s):  
M.B. Kosmyna ◽  
B.P. Nazarenko ◽  
V.M. Puzikov ◽  
A.N. Shekhovtsov ◽  
W. Paszkowicz ◽  
...  
Keyword(s):  
Single Crystal ◽  
Spectral Characteristics ◽  
Laser Material ◽  
Material Growth ◽  
Growth Structure ◽  
Grown Single Crystal

Infrared Reflective Coatings for Window Glazing

2008 ◽  
Vol 144 ◽  
pp. 226-231 ◽  
Author(s):  
Jitka Mohelníková
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Infrared Radiation ◽  
Spectral Characteristics ◽  
Heat Losses ◽  
Glass Pane ◽  
Thin Film Coatings ◽  
Long Wave ◽  
Reflective Coatings ◽  
Long Wave Infrared

Glasses reflective in the spectral range of long-wave infrared radiation operate as heat mirrors. These glasses have found wide applications in architecture. Special thin film coatings on glass panes reflect long wave infrared radiation back to building interiors. The reflective thin films limit absorption of infrared radiation within the glass pane and reduce radiation heat losses of glazings. Heat losses of windows could be significantly limited with the coated glasses which are called low-emissivity glazings. The study of materials convenient for infrared reflective coatings, the optimal composition of thin films and their thicknesses is the main topic of the presented paper. The study is based on measurements of spectral characteristics of selected glasses and computer simulations of the thin film composition for applications of window infrared reflective coatings.

scholarly journals ANALYSIS OF THE SEPARATION METHODS OF OPTICAL SPECTRA FOR INDIVIDUAL COMPONENTS

2018 ◽  
Vol 8 (4) ◽  
pp. 8-11
Author(s):  
Victor Makhniy ◽  
Oksana Kinzerska ◽  
Illia Senko
Keyword(s):  
Comparative Analysis ◽  
Single Crystal ◽  
Spectral Characteristics ◽  
Emission Spectra ◽  
Optical Spectra ◽  
Modulation Spectroscopy ◽  
Direct Differentiation Method ◽  
Direct Differentiation ◽  
Differentiation Method

A comparative analysis of various methods for the decomposition of broad bands into individual components has been carried out. It is shown that the most universal are the methods of modulation spectroscopy and direct differentiation of conventional spectral characteristics, which, unlike the widely used Alentsev-Fock method, are applicable to spectra of any type (luminescence, transmission, absorption, etc.). The features and capabilities of the direct differentiation method are used to identify the structure in the emission spectra and transmission of ZnSe <Al> single-crystal substrates.

scholarly journals The growth and spectral characteristics of BaWO4:Tm3+ single crystal

2010 ◽  
Vol 59 (1) ◽  
pp. 609
Author(s):  
Zang Jing-Cun ◽  
Zheng Kai ◽  
Zou Yu-Lin ◽  
Wu Jing-Peng ◽  
Song Yan-Rong ◽  
...  
Keyword(s):  
Single Crystal ◽  
Spectral Characteristics

Spectral characteristics of infrared radiation from forest fires

2006 ◽  
Author(s):  
Han Sun ◽  
Zhiguo Rong ◽  
Cheng Liu ◽  
Jingjing Liu ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Forest Fires ◽  
Infrared Radiation ◽  
Spectral Characteristics
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