Fluoroindate glasses
Violet and blue light amplification in Nd3+-doped fluoroindate glasses
... fluoride glasses have received great attention due to its small optical phonon ...7 Fluoroindate glasses ~FIGs! belong to this class of materials and they have been exten- sively studied in the last ...
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Optical properties of chromium-doped fluoroindate glasses
... investigated and they were shown to be stable concerning devitrification. 8 In the present work, Cr 3 1 ions incorporated to these fluoroindate glasses have their optical properties characterized. The ...
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Frequency upconversion in Er3+-doped fluoroindate glasses pumped at 1.48 μm
... Different processes may lead to the population of highly excited Er 3 1 states after excitation in the near infrared ( 4 I 15/2 → 4 I 13/2 ). 13,15–19 These processes rely either on multi- step excited state absorption ...
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Spectroscopic properties and upconversion mechanisms in Er3+-doped fluoroindate glasses
... There is a great interest in the study of rare-earth doped heavy metal fluoride glasses. These materials present a high transparency from UV to IR region; they can be easily pre- pared and a relative high ...
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Twentyfold blue upconversion emission enhancement through thermal effects in Pr3+/Yb3+-codoped fluoroindate glasses excited at 1.064 mu m
... reduced the devitrification process and improved the thermal stability, permitting the realization of fluoroindate glass fiber. 15 The samples had concentration of 5000 ppm/wt of praseodymium and different ...
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Optical spectroscopy of Er3+ and Yb3+ co-doped fluoroindate glasses
... present glasses is related to the Yb 3 1 concentration: glasses with a high content of Yb 3 1 exhibit green ( ;545 nm) and red (;660 nm) light emission with similar ...
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Continuous wave ultraviolet frequency upconversion due to triads of Nd3+ ions in fluoroindate glass
... date glasses are especially interesting, since they present large transparency from ;250 nm to ;8 m m, are resistant to atmospheric moisture, and are capable of incorporating large concentrations of RE ions to the ...
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Dynamics of energy transfer and frequency upconversion in Tm3+ doped fluoroindate glass
... Recently, a class of fluoride systems—fluoroindate glasses (FIG)—has gained attention because a number of im- provements in their characteristics were developed. 3 Nowa- days, FIG samples can be prepared ...
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Negative nonlinear absorption in Er3+-doped fluoroindate glass
... -based glasses have appeared in recent ...of fluoroindate glasses doped with Eu 3 1 , Gd 3 1 , Pr 3 1 , Nd 3 1 , Tm 3 1 , and Dy 3 1 were ...oroindate glasses were also presented 12–16 ...
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Frequency upconversion involving triads and quartets of ions in a Pr3+/Nd3+ codoped fluoroindate glass
... In this letter, we report studies of ET involving groups of Nd 3 ⫹ and Pr 3 ⫹ resulting in UC in the blue-ultraviolet region in fluoroindate glasses. The samples were excited using light in the red-green ...
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Phonon-assisted cooperative energy transfer and frequency upconversion in a Yb3+/Tb3+ codoped fluoroindate glass
... An investigation of thermally enhanced frequency UC due to cooperative energy transfer in Yb 3 ⫹ /Tb 3 ⫹ codoped fluoroindate glass excited at 1064 nm was performed. The results demonstrate that PA processes may ...
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Synthesis and characterization of innovative luminescent glasses for artistic applications
... luminescent glasses with lanthanide oxides, all the interviewed artists agree that these materials promote an immediate impact in the observers and therefore the several luminescent colours produced in this thesis ...
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Seeing life through positive-tinted glasses: color-meaning associations.
... Our results showed that pink, green and white backgrounds systematically involved more emotion responses than the gray background for happy faces compared with sad ones, but we did not o[r] ...
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Spectroscopic study of calcium aluminate-based glasses with Nd3+.
... A transmissão da matriz vítrea pode se estender mais na região do IV, como no caso dos vidros fluoretos a base de metais pesados (HMF), onde elementos como o índio, chumbo, cádmio, etc, [r] ...
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MODIFICATION OF SURFACE LAYERS FOR SILICATE GLASSES BY ELECTRON IRRADIATION
... the glasses exposure to an electron beam with 20-50 keV electron energies, a gradient optical waveguide with increased refractive index on waveguide axis Δn = ...containing glasses for electron energies ...
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Diopside-fluorapatite-wollastonite based bioactive glasses and glass-ceramics
... bioactive glasses in aqueous solutions and SBF, thus, inducing delayed hydroxyapatite formation and cellular apoptosis in vitro due to sudden outburst of ...from glasses may not be crucial for in vivo ...
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Medieval Tuscan glasses from Miranduolo, Italy: A multi-disciplinary study
... The REE fingerprint shows that different sands were used implying that the glasses could have come from multiple factories. One should take into consideration the possibility of the existence of glass-making ...
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Surface characterization of absorbing polymer films deposited on transparent glasses
... wavelength. For absorbing polymer films on transparent glass, a database needs to be created for the substrate, and modeling can be done using both optical transmission and SE data with a model which includes for example ...
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Control of nonlinear absorption and amplification of light in Er3+-doped fluoroindate glass
... The glass was synthesized with standard proanalysis oxides and fluorides as the starting materials. The pro- cedure is a classic ammonium bifluoride process. How- ever, gallium and indium oxides are sensitive to hydroli- ...
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X-ray diffraction investigation of Co(II) ions in borosilicate glasses
... Structural arrangement of sodium ions in borate glasses has been in- ferred by comparison of their radial distribution functions with those from glasses where sodium was replaced by [r] ...
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