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    Wyświetlanie 1-14 z 14
    Tytuł:
    Właściwości luminescencyjne światłowodów specjalnych
    Luminescence properties of special fibres
    Autorzy:
    Dorosz, D.
    Kochanowicz, M.
    Żmojda, M.
    Zając, A.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/157204.pdf
    Data publikacji:
    2010
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    światłowód aktywny
    światłowód wielordzeniowy
    światłowód spiralny
    multicore fiber
    helical core fiber
    luminescence
    Opis:
    W artykule przestawiono wyniki prac nad zastosowaniem dwóch nowych typów światłowodów domieszkowanych jonami ziem rzadkich do budowy laserów włóknowych. Jednym z nich, są światłowody wielordzeniowe umożliwiające uzyskanie wiązki laserowej o dużej mocy i małej rozbieżności (supermodu). Drugi prezentowanym rozwiązaniem są światłowody, w których ukształtowany w spiralę rdzeń zapewnia silną absorpcję pompy, jak również łatwe jej odsprzężenie na wyjściu światłowodu od generowanego w rdzeniu promieniowania. Wytworzono oba rodzaje światłowodów domieszkowanych jonami Nd3+ oraz określono ich właściwości luminescencyjne.
    The high power, short pulse generation in a fibre lasers is limited by nonlinear effects (Raman and Brillouin scattering, self - phase modulation). Therefore it's necessary to find innovative constructions of rare-earth doped optical fibres considerably different from conventional double-clad optical fibres. In the paper the possibility of applying new optical fibers as an active material for constructing high-power fiber lasers is presented. Multicore active optical fibre is one of new construction. Such a fibre enables attaining a high-intensity and low-divergence laser beam (supermod) in the far-field diffraction region (Fig. 2, 4). Second type of new active optical fibre is helical - core optical fibre. Due to a specific shape of the core such fibre is characterized by effective absorption of pump radiation.Moreover, optimization of material and geometrical optical fibre properties enables to increase volume of active material (core diameter) while single mode operation is preserved. The luminescence spectra of both types of manufactured optical fibres doped with Nd3+ are presented (Fig. 7, 8, 12).
    Źródło:
    Pomiary Automatyka Kontrola; 2010, R. 56, nr 2, 2; 180-183
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spectroscopic Properties of $Yb^{3+}//Tb^{3+}$ Doped Germanate Glasses
    Autorzy:
    Kochanowicz, M.
    Dorosz, D.
    Żmojda, J.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1417968.pdf
    Data publikacji:
    2012-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.81.-i
    42.79.Ag
    42.70.-a
    Opis:
    In the article the cooperative energy transfer in GeO₂-GaO-BaO glass system doped with $Yb^{3+}//Tb^{3+}$ under 980 nm laser diode excitation was investigated. The influence of $Tb^{3+}$ concentration on the luminescent properties was determined. Measured strong luminescence at 489, 543, 586, 621 corresponds to $\text{}5D_4 \rightarrow \text{}^7 F_{J} $ (J = 6, 4, 3) transitions and luminescence at 381, 415, 435 nm results from $\text{}5 D_3, \text{}^5 G_6 \rightarrow \text{}^7 F_{J}$ (J = 6, 5, 4) transitions. Mechanism and energy diagram involved in observed emission were discussed. The highest upconversion emission intensity was obtained in the germanate glass doped with 0.7Yb₂O₃/0.7Tb₂O₃.
    Źródło:
    Acta Physica Polonica A; 2012, 122, 5; 837-840
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    $Nd^{3+}//Yb^{3+}$ Doped Phosphate and Antimony Glasses for Optical Fibre Source
    Autorzy:
    Dorosz, D.
    Żmojda, J.
    Kochanowicz, M.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1506744.pdf
    Data publikacji:
    2010-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.81.-i
    42.79.Ag
    33.20.Kf
    42.25.Bs
    Opis:
    In the article there are presented two different series of glass: fluorophosphate with molar composition: $65P_2O_5-8Al_2O_3-$ $2BaO-5BaF_2-6ZnF_2-$ $5Na_2O-$ $6MgF_2-3B_2O_3$ and antimony glasses $40Sb_2O_3-$ $3Al_2O_3-$ $57SiO_2$ doped with $Nd^{3+}$ and $Yb^{3+}$ ions. Dopant contents influence efficient spatial overlapping of emission level for neodymium and absorption level for ytterbium was analyzed. While exciting the produced glasses with a laser diode (λ = 808 nm) a broad luminescence spectrum (Δλ = 100 nm) has been obtained in both cases in the vicinity of 1 μm, being the superposition of the following transitions: $\text{}^4F_{3//2} \rightarrow {\text{}^4I_{11//2}}$ for $Nd^{3+}$ and $\text{}^2F_{5//2} \rightarrow {\text{}^2F_{7//2}}$ for $Yb^{3+}$. Based on the luminescence measurements the probability of non-radiative energy transfer was described. Because of a small difference in energy ( ≈1190 $cm^{-1}$) between the laser levels of neodymium and ytterbium the resonant process of energy transfer has been obtained.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 6; 1108-1112
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Upconversion Luminescence in $Yb^{3+}//Tm^{3+}$ Doped Double Clad Optical Fibre
    Autorzy:
    Zmojda, J.
    Dorosz, D.
    Kochanowicz, M.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1493312.pdf
    Data publikacji:
    2011-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.81.-i
    42.79.Ag
    33.20.Kf
    42.25.Bs
    Opis:
    The paper presents luminescence properties of telluride glass doped with $Yb^{3+}//Tm^{3+}$ ions. Strong blue emission at 477 nm corresponding to the transition $\text{}^1 G_4 \rightarrow \text{}^3 H_6$ in thulium ions was measured under the excitation of a 976 nm diode laser. The dependence of the upconversion emission upon the thulium ions concentration was studied in order to determine the optimal ion content. The results showed that intensity of upconversion emission enhances, with the increase of $Tm^{3+}$ content up to 0.1 mol.%. The most effective energy transfer $Yb^{3+} \rightarrow Tm^{3+}$ occurs in the glassy matrix with molar ratio of dopant 1 $Yb^{3+}$ : 0.1 $Tm^{3+}$. Double-clad optical fibre was made of glass with the highest upconversion intensity at the wavelength of λ = 477 nm (TGPF101). As a result of optical excitation (λ = 976 nm) of the produced optical fibre, an additional emission line, which was not noticed in the glass, was observed at the wavelength of 351 nm corresponding to the $\text{}^1 D_2 \rightarrow \text{}^3 H_6$ transition.
    Źródło:
    Acta Physica Polonica A; 2011, 120, 4; 776-781
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Beam Quality of Multicore Fibre Lasers
    Autorzy:
    Kochanowicz, M.
    Dorosz, D.
    Żmojda, J.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1506798.pdf
    Data publikacji:
    2010-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.81.-i
    42.79.Ag
    33.20.Kf
    Opis:
    In the paper the beam quality of the phase-locked multicore fibre lasers was investigated. The beam quality factor (BQF) of the coherently combined beam of the multicore fibre lasers should be determinate as the laser optical output power in a central peak far-field bucket divided by the total optical output power radiating from the effective near-field. Classical $M^2$ factor is not proper for evaluating the beam quality of phase-locked multicore fibre lasers because it degrades with the increasing number of cores. The beam quality factor of the manufactured multicore fibres equals: 7-core hexagonal structure fibre (BQF = 0.71, V = 2.4), 5-core (BQF = 0.70, V = 2.4), 30-core circular structure of core optical fibre laser possesses the lowest beam quality factor (BQF = 0.48, V = 2.4). However, the angular divergence of the central peak is reduced in proportion to the number of cores generating mutually coherent radiation. Numerical simulation shows that standard deviation of the phase error below 15° has an inconsiderable impact on the laser beam quality. The luminescence spectra of the fabricated constructions: 5-core, 7-core and 30-core double clad multicore optical fibres doped with $Nd^{3+}$ were measured.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 6; 1177-1182
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Active glasses as the luminescent sources of radiation for sensor applications
    Autorzy:
    Żmojda, J.
    Dorosz, D.
    Kochanowicz, M.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/201797.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    tellurite glasses
    antimony-silicate glasses
    Yb3+
    Tm3+
    upconversion
    blue luminescence
    energy transfer
    active glasses
    Opis:
    The article presents physicochemical, thermal and spectroscopic properties of two different glass systems: TeO2-GeO2-PbO-PbF2- BaO-Nb2O5-LaF3 and SiO2-Al2O3-Sb2O3, co-doped with Yb3+/Tm3+ ions. Blue upconversion luminescence at a wavelength of 478 nm corresponding to the thulium 1G4 ⇥3H6 transition was observed under 976 nm pump radiation in both of the co-doped glasses. This indicated the existence of efficient Yb3+ ⇥ Tm3+ energy transfer via three-photon absorption mechanism. Thermal and optical results substantiate the claim for practical applicability of the manufactured glasses in design of optical fiber sources.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 2; 393-397
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    UV Radiation Detection Using Optical Sensor Based on Eu3+ Doped PMMA
    Autorzy:
    Miluski, P.
    Kochanowicz, M.
    Żmojda, J.
    Dorosz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/220742.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ultraviolet radiation
    UV
    optical fibre sensor
    lanthanides
    Opis:
    Progress in UV treatment applications requires new compact and sensor constructions. In the paper a hybrid (organic-inorganic) rare-earth-based polymeric UV sensor construction is proposed. The efficient luminescence of poly(methyl) methacrylate (PMMA) matrix doped by europium was used for testing the optical sensor (optrode) construction. The europium complex assures effective luminescence in the visible range with well determined multi-peak spectrum emission enabling construction of the optrode. The fabricated UV optical fibre sensor was used for determination of Nd:YAG laser intensity measurements at the third harmonic (355 nm) in the radiation power range 5.0-34.0 mW. The multi-peak luminescence spectrum was used for optimization of the measurement formula. The composition of luminescent peak intensity enables to increase the slope of sensitivity up to -2.8 mW-1. The obtained results and advantages of the optical fibre construction enable to apply it in numerous UV detection systems.
    Źródło:
    Metrology and Measurement Systems; 2016, 23, 4; 615-621
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polylactide-based composites reinforced with biodegradable glass fibers
    Autorzy:
    Markiewicz, G.
    Dąbrowski, J. R.
    Kochanowicz, M.
    Żmojda, J.
    Jałbrzykowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/284426.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    tensile strength
    plastic
    biodegrability
    glass fiber
    Opis:
    This paper presents the method of obtaining biodegradable glass fibers and the results of strength tests of polylactide based composites reinforced with obtained fibers. Polylactide (PLA) is a biodegradable plastic used in both industry and medicine. In medical applications its use is limited due to low mechanical properties. One of the methods to improve the strength parameters is the development of composite materials based on PLA with fibrous fillers. In this work as a matrix, the NatureWorks 4043D polylactide was used. For the reinforcement, the continuous, biodegradable glass fiber was used. These fibers were obtained by direct pulling out of the preform. Their composition is based on the composition of the biodegradable 45S5 glass, but the contents of calcium oxide (CaO) and sodium oxide (Na2O) have been changed. Also the potassium oxide (K2O) was added. Composite samples were obtained by flooding the fibers with polylactide dissolved in dichloromethane. Strength tests were carried out using the Zwick/Roell Z010 strength machine. The tensile strength values for composites ranged from slightly less than 11 MPa to almost 20 MPa. For PLA samples it ranged from about 14 MPa to slightly less than 18 MPa. The highest values of tensile strength were obtained by composite samples. Initial studies show that it is possible to improve the tensile strength of PLA samples by incorporating biodegradable glass fibers into their structure.
    Źródło:
    Engineering of Biomaterials; 2017, 20, no. 143 spec. iss.; 24
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    $Tm^{3+}//Ho^{3+}$-Doped ASE Fibre Source for Mid-Infrared Sensor Applications
    Autorzy:
    Dorosz, D.
    Żmojda, J.
    Kochanowicz, M.
    Miluski, P.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1418068.pdf
    Data publikacji:
    2012-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.81.-i
    42.79.Ag
    33.20.Kf
    Opis:
    The infrared emission of $Tm^{3+}//Ho^{3+}$-doped antimony-silicate optical fiber has been presented. Luminescence at 2.1 μm corresponding to ⁵I₇ → ⁵I₈ transition in holmium was obtained by energy transfer between $Tm^{3+}$ and $Ho^{3+}$ ions. According to the Förster-Dexter theory, the efficiency of energy transfer of the $\text{}^3 F_4 (Tm^{3+}) \rightarrow \text{}^5 text{|}_7 (Ho^{3+})$ transition was calculated. The optimization of the activator content and the donor $(Tm^{3+})$/acceptor $(Ho^{3+})$ ions concentration ratio were conducted with the purpose of maximizing the efficiency of energy transfer. It made possible to select best-suited glass which was used to manufacture double-clad optical fiber. Strong and narrow bands of amplified spontaneous emission which formed as a result of energy transfer between thulium and holmium ions were observed in the fiber under exciting with radiation at 795 nm wavelength.
    Źródło:
    Acta Physica Polonica A; 2012, 122, 5; 927-932
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Luminescent Polymer Optical Fibre Sensor for Temperature Measurement
    Autorzy:
    Miluski, P.
    Dorosz, D.
    Żmojda, J.
    Kochanowicz, M.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1398851.pdf
    Data publikacji:
    2015-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.81.-i
    42.81.Wg
    42.79.-e
    42.70.Jk
    Opis:
    In the paper the luminescence optical fiber used as a temperature sensor is presented. The new construction of rhodamine B doped, polymethyl methacrylate optical fibre with silver coating is shown. The fabrication process and luminescent properties of rhodamine B in sensing fibre are investigated. The attenuation and spectral shift of luminescence peak vs. the fibre length were measured and used for optimization of sensor construction. The characteristics of sensor for temperature range from 293 up to 343 K are shown. The relative sensitivity equal to -5.4× $10^{-4}$ $K^{-1}$ was obtained. The article presents also the potential applications of presented sensor.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 3; 730-733
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Temperature on Upconversion Luminescence in $Yb^{3+}//Tb^{3+}$ Co-Doped Germanate Glass
    Autorzy:
    Kochanowicz, M.
    Dorosz, D.
    Zmojda, J.
    Miluski, P.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399372.pdf
    Data publikacji:
    2013-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.70.-a
    42.79.Ag
    42.81.-i
    Opis:
    In the article effect of temperature on the cooperative energy transfer in germanate glass co-doped with $Yb^{3+}//Tb^{3+}$ under 976 nm laser diode pumping was investigated. The optimization of $Tb^{3+}$ concentration on the upconversion luminescence was determined. Strong luminescence at 489, 543, 586, 621 nm corresponding to $\text{}^{5}D_{4} \rightarrow \text{}^{7}F_{J}$ (J = 6,4,3) transitions and luminescence at 381, 415, 435 nm resulting from $\text{}^{5}D_{3}, \text{}^{5}G_6 \rightarrow \text{}^{7}F_{J}$ (J=6,5,4) transitions were presented. The highest upconversion emission intensity was obtained in glass co-doped with $0.7Yb_{2}O_{3}//0.7Tb_{2}O_{3}$ (mol%). The effect of temperature on the luminescent properties of germanate glass in the range of 5-250°C indicates the presence of competing phenomena: an increase in the effective absorption cross-section of $Yb^{3+}$ ions donor as a function of temperature and migration of energy between pairs of ions $Yb^{3+}-Yb^{3+}$ and of multiphonon excitation levels $\text{}^{7}F_{J}$.
    Źródło:
    Acta Physica Polonica A; 2013, 124, 3; 471-473
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Active optical fibres for application in laser and broadband ASE sources
    Autorzy:
    Dorosz, D.
    Dorosz, J.
    Zając, A.
    Żmojda, J.
    Kochanowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/201633.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    active optical fibres
    double-clad fibres
    RE doped glasses
    rare earth elements (REE)
    Opis:
    The article brings into focus the present state of technology employing active fibres doped with rare earth (RE) ions for applications requiring power supply of several dozen watts and broadband ASE sources. Current trends in development of glasses and in construction of active fibres used in fibre sources of radiation within VIS-NIR range are presented. Technological constraints in the doping of fibre core glasses are discussed, with particular consideration of optimal RE concentration for technical applications. Characteristics of glasses are offered, and the glasses are used for manufacturing optical fibres with luminescence within the visible as well as near- and mid-infrared ranges. Also, requirements and luminescence properties concerning glasses co-doped with e.g. Nd3+/Yb3+,Tm3+/Ho3+ and Yb3+/Tb3+ are discussed. Results of research on the impact of technological parameters of glass matrices on luminescence properties of core glasses and optical fibres are quoted. For the doped glasses of which luminescence in a wide spectral range is desired, conditions for their processing into optical fibre systems are mentioned. Additionally, the impact of phonon energy in the glass on producing emission in a specified spectral range is analyzed. Furthermore, the article presents directions of technological studies to solve problems persisting in the phase of glass matrix design, as well as in determining the influence of fibre drawing process on the luminescence properties of core glasses and optical fibres, confirming the differences in luminescence stemming from the drawing process. Finally, some original designs of core glasses and active multicore fibre systems devised for construction of fibre radiation sources are presented.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 4; 673-682
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    White Upconversion in $Yb^{3+}//Tm^{3+}//Ho^{3+}$ Co-Doped Antimony-Germanate Glasses
    Autorzy:
    Żmojda, J.
    Dorosz, D.
    Kochanowicz, M.
    Miluski, P.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399412.pdf
    Data publikacji:
    2013-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.81.-i
    42.79.Ag
    33.20.Kf
    42.25.Bs
    Opis:
    In the paper the spectroscopic properties of antimony-germanate glass co-doped with $Yb^{3+}//Ho^{3+}$ has been investigated. Fabricated $Yb^{3+}//Tm^{3+}/Ho^{3+}$ co-doped glass is characterised by the emission of simultaneous multicolour upconversion luminescence. Strong blue $\text{}^{1}G_{4} \rightarrow \text{}^{3}H_{6}(Tm^{3+})$, green $\text{}^{5}F_{4} \rightarrow \text{}^{5}I_{8}(Ho^{3+})$ and red $\text{}^{5}F_{5} \rightarrow \text{}^{5}I_{8}(Ho^{3+})$ upconversion emission bands have been measured under 976 nm excitation at room temperature. Influence of molar ratio of active ions and excitation power on the colour coordinates (CIE-1931) have been investigated.
    Źródło:
    Acta Physica Polonica A; 2013, 124, 3; 598-601
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Czujnik kapilarny z rdzeniem domieszkowanym jonami samaru
    Capillary sensor with samarium doped core
    Autorzy:
    Baranowska, A.
    Żmojda, J.
    Kochanowicz, M.
    Miluski, P.
    Dorosz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/168200.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Ceramiki i Materiałów Budowlanych
    Tematy:
    kapilarny czujnik optyczny
    kapilarny światłowód domieszkowany Sm3+
    optroda
    pomiar
    capillary optical sensor
    capillary Sm3+ -doped optical fiber
    optrode
    measurement
    Opis:
    W artykule przedstawiono czujnik światłowodowy wykorzystujący szklane włókno kapilarne, wyposażone w luminescencyjny rdzeń. Na rdzeń światłowodu zaproponowano szkło krzemianowe domieszkowane jonami samaru, zapewniające selektywną absorpcję promieniowania w zakresie 550-720 nm. Konstrukcja czujnika pozwala na pomiar stężenia roztworów, zaprezentowany na przykładzie roztworu Rodaminy B (RhB) w zakresie stężeń 0,01 - 0,15% ww. W wyniku metody sumowania sygnałów z dwóch pasm luminescencji uzyskano czułość pomiaru na poziomie -275•103 %-1. Otrzymane wyniki wskazują, że opracowana konstrukcja optrody może posłużyć jako kompaktowy czujnik luminescencyjny do ciągłego pomiaru właściwości roztworów.
    The paper presents optical fiber sensor based on an optical fiber capillary with a luminescent side ribbon. Siliceous core was doped with Sm3+ ions which ensure multi colour luminescence in visible spectrum (550-720 nm). The special fibre construction allows to measure concentration of Rhodamine B (RhB) solution in rage of 0.01 - 0.15% ww. The sensitivity was obtained by using combination of measurements at 564 nm and 601 nm wavelengths and it reached -275•103 %-1. The use of certain wavelengths at measurement procedure allows to obtain the increase of selectivity and sensitivity of optrode. The results allow to reach the conclusion that the designed optrode has the ability to be used for construction of compact luminescent sensors, measuring selected properties of the solutions.
    Źródło:
    Szkło i Ceramika; 2016, R. 67, nr 1, 1; 10-13
    0039-8144
    Pojawia się w:
    Szkło i Ceramika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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