Search Results - "Lupei, V"

Ceramic laser materials and the prospect for high power lasers by Lupei, V.

“…The paper discusses the possibilities for enhancement of laser emission parameters and power scaling of Nd-doped transparent ceramic materials. It is shown…”
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Transparent polycrystalline ceramic laser materials by Lupei, V., Lupei, A., Ikesue, A.

“…High-resolution spectroscopy of the rare earth ions in transparent ceramics of garnets and sesquioxides produced by solid-state synthesis indicate that the…”
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Comparative spectroscopic investigation of rare earth-doped oxide transparent ceramics and single crystals by Lupei, V.

“…The high-resolution optical spectroscopy and emission decay of rare earth-doped garnet and sesquioxide polycrystalline transparent ceramics produced by…”
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Structural and electron-phonon interaction effects in optical spectra of Pr3+ and Sm3+ in YAG by Lupei, V., Lupei, A., Hau, S., Gheorghe, C., Ikesue, A.

“…Comparative high resolution spectroscopic investigation between 10 and 300 K of the less investigated Pr3+ and Sm3+ ions in the YAG crystals and transparent…”
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Multicenters in Ce3+ visible emission of YAG ceramics by Lupei, A., Lupei, V., Gheorghe, C., Hau, S., Ikesue, A.

“…•Emission features of Ce3+:YAG microceramics excited with pulsed 532nm were studied.•The complex temperature (10–300K) dependent spectra and decays are…”
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Electronic structure of Sm3+ ions in YAG and cubic sesquioxide ceramics by Lupei, A., Lupei, V., Gheorghe, C.

“…•Analysis of Sm3+ spectra in YAG, Y2O3, Lu2O3 and Sc2O3 microcrystalline ceramics.•New spectroscopic data on centrosymmetric C3i centers in…”
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Transparent Nd and (Nd, Yb)-doped Sc2O3 ceramics as potential new laser materials by Lupei, V., Lupei, A., Ikesue, A.

“…Highly transparent Sc2O3 ceramics with uniform doping up to 0.5at.% Nd and with (Nd, Yb) codoping are reported. The spectroscopic and emission decay properties…”
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Energy transfer and cooperative processes in Yb3+-doped cubic sesquioxide laser ceramics and crystals by BOULON, G, LUPEI, V

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Single crystal and transparent ceramic Nd-doped oxide laser materials: a comparative spectroscopic investigation by Lupei, V., Lupei, A., Ikesue, A.

“…The high resolution spectroscopy indicates that the spectroscopic and emission dynamics properties of cubic oxide transparent ceramics (Nd:YAG and Nd:Y2O3)…”
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RE3+ emission in garnets: multisites, energy transfer and quantum efficiency by LUPEI, V

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Neodymium concentration dependence of 0.94-, 1.06- and 1.34-μm laser emission and of heating effects under 809- and 885-nm diode laser pumping of Nd:YAG by PAVEL, N, LUPEI, V, SAIKAWA, J, TAIRA, T, KAN, H

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Highly efficient continuous-wave 946-nm Nd:YAG laser emission under direct 885-nm pumping by Lupei, V., Pavel, N., Taira, T.

“…The 885-nm Ti:Sapphire pumping into the emitting level F43/2 of Nd:YAG produces a highly efficient (0.68 slope efficiency in absorbed power) 946-nm laser…”
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Spectroscopic characteristics of Tm3+ in Tm and Tm, Nd, Yb:Sc2O3 ceramic by LUPEI, V, LUPEI, A, GHEORGHE, C, IKESUE, A

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Upconversion emission of RE3+ in Sc2O3 ceramic under 800 nm pumping by LUPEI, A, LUPEI, V, GHEORGHE, C, IKESUE, A, OSIAC, E

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1064 nm laser emission of highly doped Nd: Yttrium aluminum garnet under 885 nm diode laser pumping by Lupei, V., Pavel, N., Taira, T.

“…Highly efficient 1064 nm continuous-wave laser emission under 885 nm diode pumping in concentrated Nd: Yttrium aluminum garnet (YAG) crystals (up to 3.5 at. %…”
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Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics by Lupei, V., Lupei, A., Pavel, N., Taira, T., Shoji, I., Ikesue, A.

“…The possibility of using the thermally activated optical absorption bands for a resonant pump in the emitting level of highly doped Nd laser materials is…”
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Comparative high-resolution spectroscopy and emission dynamics of Nd-doped GSGG crystals and transparent ceramics by Lupei, V., Lupei, A., Gheorghe, C., Ikesue, A.

“…The comparative spectroscopic and emission decay investigation of Nd:GSGG single crystals and transparent ceramics indicates that their properties are similar…”
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Assessment of the distribution of the Yb3+ ions in Sc2O3 ceramics from cooperative absorption and emission by LUPEI, V, LUPEI, A, BOULON, G, JOUINI, A, IKESUE, A

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Assessment of the distribution of the Yb ions in Sc2O3 ceramics from cooperative absorption and emission by Lupei, V, Lupei, A, Boulon, G, Jouini, A, Ikesue, A

“…The paper reports the first observation of cooperative optical absorption and emission processes in Yb3+:Sc2O3 transparent laser ceramics. The intensity of…”
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Growth and type-I noncritical phase-matching second-harmonic-generation of Gd1-xRxCa4O(BO3)3 (R3+ = Sc3+ or Lu3+) crystals by GHEORGHE, L, LOISEAU, P, AKA, G, LUPEI, V

“…Single crystals of Gd1-xRxCa4O(BO3)3 (R3+Sc3+ or Lu3+) with large size and good quality have been grown by Czochralski method. The chemical compositions of the…”
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