Search Results - "Buchal, Ch"

Ferroelectric BaTiO3 thin-film optical waveguide modulators by Petraru, A., Schubert, J., Schmid, M., Buchal, Ch

“…High-quality BaTiO3 epitaxial thin films on MgO substrates have been grown by pulsed-laser deposition. Both, c-axis and a-axis BaTiO3 orientations were…”
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Melting of Zn nanoparticles embedded in SiO2 at high temperatures: Effects on surface plasmon resonances by Amekura, H., Tanaka, M., Katsuya, Y., Yoshikawa, H., Shinotsuka, H., Tanuma, S., Ohnuma, M., Matsushita, Y., Kobayashi, K., Buchal, Ch, Mantl, S., Kishimoto, N.

“…Zn nanoparticles at room temperature show two absorption peaks in the near-infrared (NIR) and the ultraviolet (UV) regions, both of which satisfy the criterion…”
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Embedment of ZnO nanoparticles in SiO2 by ion implantation and low-temperature oxidation by Amekura, H., Umeda, N., Boldyryeva, H., Kishimoto, N., Buchal, Ch, Mantl, S.

“…Samples of silica glass (SiO2) implanted with 60keV Zn ions to a fluence of 1.0×1017ions∕cm2 were annealed in oxygen gas to form ZnO nanoparticles (NPs)…”
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Atomic force microscopy and x-ray photoelectron spectroscopy studies of ZnO nanoparticles on SiO2 fabricated by ion implantation and thermal oxidation by Amekura, H., Plaksin, O. A., Yoshitake, M., Takeda, Y., Kishimoto, N., Buchal, Ch

“…The morphology and chemical composition of the surface of SiO2 that had been implanted with Zn ions of 60keV and annealed in two different atmospheres, i.e.,…”
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Electroluminescence of erbium–oxygen-doped silicon diodes grown by molecular beam epitaxy by Stimmer, J., Reittinger, A., Nützel, J. F., Abstreiter, G., Holzbrecher, H., Buchal, Ch

“…We have fabricated erbium–oxygen-doped silicon light emitting diodes with molecular beam epitaxy by simultaneously evaporating erbium and silicon and providing…”
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Rare-earth scandate single- and multi-layer thin films as alternative gate oxides for microelectronic applications by Heeg, T., Wagner, M., Schubert, J., Buchal, Ch, Boese, M., Luysberg, M., Cicerrella, E., Freeouf, J.L.

“…Thin films of rare-earth scandates (RE ScO3) as well as multi-layers of scandates and titanates have been prepared using pulsed laser deposition. Epitaxial…”
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Enhancement of erbium photoluminescence by substitutional C alloying of Si by Markmann, M., Neufeld, E., Sticht, A., Brunner, K., Abstreiter, G., Buchal, Ch

“…Photoluminescence (PL) at 1.54 μm of erbium-doped Si1−yCy alloys grown by molecular beam epitaxy (MBE) has been analyzed depending on sample temperature,…”
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Superconducting and electro-optical thin films prepared by pulsed laser deposition technique by Schubert, J., Siegert, M., Fardmanesh, M., Zander, W., Prömpers, M., Buchal, Ch, Lisoni, Judit, Lei, C.H.

“…The pulsed laser deposition (PLD) technique is an excellent method to prepare single crystalline complex oxide thin films. We have successfully grown films for…”
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Effect of annealing and H2 passivation on the photoluminescence of Si nanocrystals in SiO2 by Neufeld, E., Wang, S., Apetz, R., Buchal, Ch, Carius, R., White, C.W., Thomas, D.K.

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The growth of MgO buffer layers on sapphire for the epitaxy of BaTiO3 optical thin films by LISONI, Judit G, SIEGERT, M, LEI, C. H, BIEGEL, W, SCHUBERT, J, ZANDER, W, BUCHAL, Ch

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Fabrication of ZnO nanoparticles in SiO 2 by ion implantation combined with thermal oxidation by Amekura, H., Umeda, N., Sakuma, Y., Kishimoto, N., Buchal, Ch

“…Zinc-oxide (ZnO) nanoparticles (NPs) are fabricated in silica glasses ( SiO 2 ) by implantation of Zn + ions of 60 keV up to 1.0 × 10 17 ions ∕ cm 2 and…”
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Luminescence from ZnO nanoparticles/SiO2 fabricated by ion implantation and thermal oxidation by Amekura, H., Sakuma, Y., Kono, K., Takeda, Y., Kishimoto, N., Buchal, Ch

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Microstructure and orientation relations of BaTiO3/MgO/YSZ multilayers deposited on Si(0 0 1) substrates by laser ablation by LEI, C. H, JIA, C. L, SIEGERT, M, SCHUBERT, J, BUCHAL, C, URBAN, K

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Optical strip waveguides in KNbO3 formed by He ion implantation by FLUCK, D, GÜNTER, P, IRMSCHER, R, BUCHAL, C

“…Permanent optical strip waveguides in single crystals of KNbO3 were produced with MeV He ion implantation. Guided TE00 modes were observed and the propagation…”
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Fabrication of ZnO nanoparticles in SiO2 by ion implantation combined with thermal oxidation by Amekura, H., Umeda, N., Sakuma, Y., Kishimoto, N., Buchal, Ch

“…Zinc-oxide (ZnO) nanoparticles (NPs) are fabricated in silica glasses (SiO2) by implantation of Zn+ ions of 60 keV up to 1.0×1017ions∕cm2 and following thermal…”
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Zn and ZnO nanoparticles fabricated by ion implantation combined with thermal oxidation, and the defect-free luminescence by Amekura, H., Umeda, N., Sakuma, Y., Plaksin, O. A., Takeda, Y., Kishimoto, N., Buchal, Ch

“…Silica glass implanted with Zn ions of 60keV to 1.0×1017ions∕cm2 was annealed in oxygen gas to form ZnO nanoparticles (NPs). In as-implanted state, the…”
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Optical properties of Cu implanted ZnO by Cetin, A., Kibar, R., Ayvacıklı, M., Can, N., Buchal, Ch, Townsend, P.D., Stepanov, A.L., Karali, T., Selvi, S.

“…Nanoparticles of Cu have been made in zinc oxide crystals by ion implantation. The Cu ions were implanted at 400keV into the (0001) face of a single crystal…”
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“Formation processes of zinc-oxide nanoparticles by ion implantation combined with thermal oxidation” [Journal of Crystal Growth 287 (2006) 2–6] by Amekura, H., Umeda, N., Yoshitake, M., Kono, K., Kishimoto, N., Buchal, Ch

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Formation of zinc-oxide nanoparticles in SiO2 by ion implantation combined with thermal oxidation by Amekura, H., Kono, K., Kishimoto, N., Buchal, Ch

“…Metal-ion implantation followed by thermal oxidation was carried out to fabricate zinc-oxide (ZnO) nanoparticles (NPs) in silica glass (SiO2). A SiO2 substrate…”
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Annealing atmosphere effects on Zn nanoparticles in SiO 2 and transformation to ZnO nanoparticles by Amekura, H., Plaksin, O.A., Kishimoto, N., Buchal, Ch

“…The effects of annealing atmosphere (oxygen or vacuum) on Zn nanoparticles (NPs) embedded in SiO 2 fabricated by ion implantation are studied. The oxidation…”
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