Search Results - "Aka, G."

Lessons from a regional analysis of forest recovery trajectories in West Africa by Amani, Bienvenu H K, N’Guessan, Anny Estelle, Van der Meersch, Victor, Derroire, Géraldine, Piponiot, Camille, Elogne, Aka G M, Traoré, Karidia, N’Dja, Justin K, Hérault, Bruno

“…In West Africa, very poorly documented are the recovery trajectories of secondary forests, and even less is known about the origin of the observed variability…”
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Crystal growth, spectroscopy and laser performances of Pr3+:Sr0.7La0.3Mg0.3Al11.7O19 (Pr:ASL) by Sattayaporn, S, Loiseau, P, Aka, G, Marzahl, D-T, Kränkel, C

“…We report on the crystal growth, spectroscopic properties and visible laser performances of Pr3+-doped Sr0.7La0.3Mg0.3Al11.7O19 (ASL). ASL crystals doped with…”
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The 'new great game' in the Eastern Mediterranean by Gürzel Aka, Aylin G., Engin Bozoglu, Aslıhan, Hashimov, Isbandiyar, Pulhan, Afet

“…This article examines the vicissitudes in regional affairs in the Eastern Mediterranean and their impact on the geopolitics of energy and geo-cultural…”
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Crystal growth, spectroscopy and laser performances of Pr^3+:Sr_07La_03Mg_03Al_117O_19 (Pr:ASL) by Sattayaporn, S., Loiseau, P., Aka, G., Marzahl, D. -T., Kränkel, C.

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Pattern of antibody responses to Plasmodium falciparum antigens in individuals differentially exposed to Anopheles bites by Aka, Kakou G, Traoré, Dipomin F, Sagna, André B, Zoh, Dounin D, Assi, Serge B, Tchiekoi, Bertin N'cho, Adja, Akré M, Remoue, Franck, Poinsignon, Anne

“…In malaria-endemic areas, human populations are frequently exposed to immunomodulatory salivary components injected during mosquito blood feeding. The…”
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BaCaBO3F: A nonlinear optical crystal investigated for UV light generation by XU, K, LOISEAU, P, AKA, G

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Influence of Host-Related Factors and Exposure to Mosquito Bites on the Dynamics of Antibody Response to Plasmodium falciparum Antigens by Aka, Kakou G., Yao, Serge S., Gbessi, Eric A., Adja, Akré M., Corbel, Vincent, Koffi, Alphonsine A., Rogier, Christophe, Assi, Serge B., Toure, Offianan A., Remoue, Franck, Poinsignon, Anne

“…Humoral immunity to Plasmodium falciparum is acquired after repeated infections, and can lead to clinical protection. This study aimed to evaluate how human-,…”
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Z-scan measurements of the nonlinear refractive indices of novel Yb-doped laser crystal hosts by MAJOR, A, AITCHISON, J. S, SMITH, P. W. E, DRUON, F, GEORGES, P, VIANA, B, AKA, G. P

“…We report on the z-scan characterization of the nonlinear refractive indices of three borate crystals (GdCOB, YCOB, and BOYS), which are new promising Yb-doped…”
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Quality of the rare earth aluminum borate crystals for laser applications, probed by high-resolution spectroscopy of the Yb3+ ion by Boldyrev, K.N., Popova, M.N., Bettinelli, M., Temerov, V.L., Gudim, I.A., Bezmaternykh, L.N., Loiseau, P., Aka, G., Leonyuk, N.I.

“…► Spectroscopic method was applied to analyze impurities in RAl3(BO3)4:Yb3+ compounds. ► The crystals with the lowest concentration of Mo have the highest UV…”
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Self-frequency conversion in nonlinear laser crystals by Aka, G, Brenier, A

“…In the self-frequency doubling or summing laser, the fact that the same crystal is used for laser action and nonlinear frequency conversion leads to compact…”
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Growth and characterization of a nonlinear borate optical crystal : BaNaB9O15 by XU, K, LOISEAU, P, AKA, G

“…Single crystals of BaNaB9O15 (BNBO) have been grown by the Czochralski pulling method in air. This compound was investigated for nonlinear optical applications…”
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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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Quasi-three-level 946 nm CW laser emission of Nd:YAG under direct pumping at 885 nm into the emitting level by Lupei, V., Aka, G., Vivien, D.

“…The possibility to enhance the laser emission characteristics and to reduce the heat generation for the 946 nm Nd:YAG laser by direct pumping into the emitting…”
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Optical characterizations of YCa4O(BO3)3 and Nd:YCa4O(BO3)3 crystals by Segonds, P., Boulanger, B., Ménaert, B., Zaccaro, J., Salvestrini, J.P., Fontana, M.D., Moncorgé, R., Porée, F., Gadret, G., Mangin, J., Brenier, A., Boulon, G., Aka, G., Pelenc, D.

“…We report a complete optical characterization of YCa4O(BO3)3 and Nd:YCa4O(BO3)3 crystals. We studied the relative orientation between the dielectric and the…”
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Blue laser emission by intracavity second harmonic generation in Nd:ASL pumped by a tapered amplifier laser diode stabilized by a volume Bragg grating by Paboeuf, D., Lucas-Leclin, G., Georges, P., Sumpf, B., Erbert, G., Varona, C., Loiseau, P., Aka, G., Ferrand, B.

“…We present the diode pumping of a Nd:ASL (Sr 1-x La x-y Nd y Mg x Al 12-x O 19 ) crystal for second harmonic generation at 453 nm. We have developed a…”
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Cationic disorder effects in complex oxide laser materials and phosphors by Lupei, A., Lupei, V., Gheoghe, C., Gheorghe, L., Aka, G., Vivien, D.

“…A comparative analysis of the high-resolution spectra of the Nd 3+ and Pr 3+ in strontium lanthanum hexa-aluminates, charge compensated with magnesium Sr 1− x…”
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Optical properties and spectroscopic parameters of Nd3+-doped phosphate and borate glasses by MEHTA, V, AKA, G, DAWAR, A. L, MANSINGH, A

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Spectroscopic properties and laser performances of Yb:YCOB and potential of the Yb:LaCOB material by Aron, A., Aka, G., Viana, B., Kahn-Harari, A., Vivien, D., Druon, F., Balembois, F., Georges, P., Brun, A., Lenain, N., Jacquet, M.

“…In order to increase the compacity of the Yb-doped lasers, YCOB (Ca 4Y(BO 3) 3) materials with high ytterbium concentration have been characterized. Large 15…”
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Optical and laser properties of Yb:Y2SiO5 single crystals and discussion of the figure of merit relevant to compare ytterbium-doped laser materials by GAUME, R, HAUMESSER, P. H, VIANA, B, VIVIEN, D, FERRAND, B, AKA, G

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Spectral and structural studies of GdCOB and YCOB crystals by Lupei, A., Antic-Fidancev, E., Aka, G., Vivien, D.

“…The high resolution spectral data on Nd3+ and Yb3+ in rare earth (RE) oxoborates RCa4O(BO3)3—with R3+ = Gd3+ and Y3+ are analyzed in terms of the disordered…”
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