Ograniczanie wyników
Czasopisma help
Lata help
Autorzy help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Znaleziono wyników: 158
first rewind previous Strona / 8 next fast forward last
Wyszukiwano:
w słowach kluczowych:  Raman spectroscopy
help Sortuj według:

help Ogranicz wyniki do:
1
100%
AGH Drilling, Oil, Gas
2018 Vol. 35, no. 1 125--138
EN Gaseous hydrocarbons and nitrogen mixtures are characterized with an own designed portable Raman system equipped with a high pressure autoclave and fiber-optic probe. Backscattered radiation is collected through a sapphire window with a probe and transferred to the spectrometer. Samples are measured[...]
2
80%
Wiadomości Konserwatorskie
2010 Nr 27 117-122
PL Spektroskopia ramanowska staje się coraz bardziej popularną techniką ze względu na prostotę pomiarów, brak konieczności przygotowywania próbki oraz możliwość pomiarów in situ. Powoduje to ciągły wzrost zainteresowania oraz rozszerzanie możliwości zastosowania tej techniki analitycznej. W prezentowan[...]
EN Vibrational analysis of pigments and dyes has become a very important and increasingly popular analytical method. The main advantages of this method are a small amount of sample needed to be measured and the possibilities of in situ measurements, so it is very useful in the area of art conservation.[...]
3
80%
Optica Applicata
2013 Vol. 43, nr 1 181--185
EN Semiconductor low-dimensional structures of CdTe quantum dots (QDs) embedded in ZnTe matrix have been investigated by micro-Raman spectroscopy. A reference ZnTe sample (without dots) was also studied for comparison. Both samples were grown by a molecular beam epitaxy technique on the p-type GaAs sub[...]
4
80%
Metrology and Measurement Systems
EN Raman spectrometers are devices which enable fast and non-contact identification of examined chemicals. These devices utilize the Raman phenomenon to identify unknown and often illicit chemicals (e.g. drugs, explosives) without the necessity of their preparation. Now, Raman devices can be portable a[...]
5
80%
Optica Applicata
EN Defects in diamond films, produced by the hot filament chemical vapour deposition (HF CVD) of methanol and hydrogen mixture as function of gas composition, were investigated by electron paramagnetic resonance (EPR), scanning electron microscopy (SEM) and Raman spectroscopy measurements. We found an [...]
6
80%
Materials Science
EN Raman spectra of KSc(WO4)2, exhibiting three reversible phase transitions from a trigonal phase to monoclinic and triclinic structures, have been studied in the temperature region of 100-294 K. The mea surements have revealed the presence of significant broadening of librational and translational mo[...]
7
80%
Polish Journal of Chemistry
1999 Vol. 73, nr 8 1379-1389
EN Poly(2,5-dithienylene-isothianaphthene) and its analogue, deutered on the benzene ring, have been prepared by voltammetric polymerization of the corresponding monomers in Bu4NBF4/acetonitrile solutions. The polymers obtained are electroactive, showing in cyclic voltammograms two oxidation peaks asso[...]
8
80%
Polish Journal of Chemistry
9
80%
Bulletin of the Polish Academy of Sciences. Technical Sciences
EN Raman spectroscopy has become more popular due to its new prospective field applications in forensic sciences, war against terrorism, environment protection and other field chemical analysis. Raman spectrometers can be miniaturised to portable devices and their price is decreasing due to development[...]
10
80%
Bulletin of the Polish Academy of Sciences. Technical Sciences
EN The Raman spectrometers can be built as the portable devices and can be used in various places to detect illicit chemicals. This method has become popular due to deficiency of other fast methods that could be applied against terrorist attacks or could help police at their work. The Conception of a p[...]
11
80%
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
2011 Nr 30 81-84
PL Praca zawiera opis oprogramowania sterującego przenośnym spektrometrem Ramana, który został zbudowany w Katedrze Optoelektroniki i Systemów Elektronicznych Wydziału Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej, w trakcie realizacji grantu rozwojowego. Opisano modułową budowę opr[...]
EN The paper contains a description of the control software of a portable Raman spectrometer which was built in the Department of Optoelectronics and Electronic Systems Faculty of Electronics, Telecommunications and Informatics Gdansk University of Technology. The software has modular structure, which [...]
12
80%
Molecular and Quantum Acoustics
2005 Vol. 26 81-89
EN Optical methods were applied to investigate sol-gel derived, thin-film components for integrated optics. Raman microscopy yielded information about molecular composition of materials, efficiency of reactions and thickness profile of the structures. Spectroscopic reflectometry, optical microscopy, an[...]
13
80%
Optica Applicata
EN In this paper we describe a number of optical techniques suitable for estimation of the semiconductor surface temperature. High spatially resolved thermoreflectance will be shown as a powerful tool to measure temperature distribution at the laser diode front facet. For determination of the absolute [...]
14
80%
Optica Applicata
EN Spatially resolved micro-Raman measurements have been performed to determine temperature distribution over the facet of high power semiconductor diode lasers. This technique is non-invasive and allows one to study the local temperature on the surface of the mirror of semiconductor diode lasers under[...]
15
80%
LAB Laboratoria, Aparatura, Badania
2016 R. 21, nr 4 20--27
PL W pracy przedstawiono wykorzystanie spektroskopii ramanowskiej (mikroskopii ramanowskiej) jako użytecznego narzędzia badawczo-diagnostycznego wykorzystywanego do oceny jakości warstw grafenowych osadzanych na różnego rodzaju podłożach takich jak: SiC, SiO2, szkło, miedź oraz PET. Spektroskopia Raman[...]
16
80%
Materials Science Poland
2017 Vol. 35, No. 4 702--706
EN Thermally stimulated luminescence (TL), cathodoluminescence (CL) and Raman spectroscopy of CVD diamond films grown on silicon substrates have been studied in order to obtain information on defects created during the growth, which induce the levels within the gap. TL between 300 K and 700 K, and CL f[...]
17
80%
Materials Science Poland
2017 Vol. 35, No. 4 687--693
EN The objective of the present research work is to optimize the growth conditions of bi- tri- and few-layer graphene using pulsed laser deposition (PLD) technique. The graphene was grown on n-type silicon (1 0 0) at 530 °C. Raman spectroscopy of the grown films revealed that the growth of low defect t[...]
18
80%
Materials Science Poland
2014 Vol. 32, No. 3 475--480
EN Diamond electrodes of different morphologies and qualities were manufactured by hot filament chemical deposition (HF CVD) techniques by changing the parameters of diamond growth process. The estimation of diamond quality and identification of different carbon phases was performed by Raman spectrosco[...]
19
80%
Materials Science Poland
2016 Vol. 34, No. 4 851--855
EN Three different types of samples of InP nanowires, i.e. undoped, doped with Si and doped with Te, were grown and measured using SEM and Raman spectroscopy. Scanning Electron Microscope (SEM) images showed differences in the length, homogeneity and curvature of the nanowires. The most homogenous wire[...]
20
80%
Materials Science Poland
EN SrLa4Ti5-xSnxO17 (0 ≤ x ≤ 2) ceramics were fabricated through solid state ceramic route and their microwave dielectric properties were investigated in an attempt to tune their temperature coefficient of resonant frequency to zero. The compositions were sin[...]
first rewind previous Strona / 8 next fast forward last