Search Results - "Ulmeanu, M."

Preparation and characterization of water in oil emulsion via drop break-off by Ulmeanu, M.

“…Water in oil emulsion with drop sizes ranging from 15 to 400 μm was produced via drop break-off in a co-flowing environment. A phase diagram illustrating the…”
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Substrate surface patterning by optical near field modulation around colloidal particles immersed in a liquid by Ulmeanu, M, Petkov, P, Ursescu, D, Jipa, F, Harniman, R, Brousseau, E, Ashfold, M N R

“…Optical near field enhancements in the vicinity of particles illuminated by laser light are increasingly recognized as a powerful tool for nanopatterning…”
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Large scale microstructuring on silicon surface in air and liquid by femtosecond laser pulses by Ulmeanu, M., Jipa, F., Radu, C., Enculescu, M., Zamfirescu, M.

“…► Large-scale microstructures were formed on the surface of silicon with dimensions of 1mm×1mm by femtosecond laser line-by-line scanning irradiation, in air…”
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3-D patterning of silicon by laser-initiated, liquid-assisted colloidal (LILAC) lithography by Ulmeanu, M., Grubb, M.P., Jipa, F., Quignon, B., Ashfold, M.N.R.

“…[Display omitted] •We report a comprehensive study of laser-initiated, liquid-assisted colloidal (LILAC) lithography.•The method combines single shot laser…”
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Silicon bump arrays by near-field enhanced femtosecond laser irradiation in fluorine liquid precursors by Ulmeanu, M., Anghel, I., Jipa, F., Filipescu, M., Enculescu, M., Zamfirescu, M.

“…[Display omitted] ► A simple approach to fabricate periodic array of conical bumps on silicon (Si) substrate is reported. ► The influence of the medium on the…”
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Cell adhesion response on femtosecond laser initiated liquid assisted silicon surface by Ulmeanu, M, Sima, L E, Ursescu, D, Enculescu, M, Bazan, X, Quintana, I

“…Silicon substrates were irradiated at normal incidence with a femtosecond Ti:sapphire laser (Quatronix, 90 fs pulse duration, 1 kHz repetition rate, M(2) ~…”
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Periodic arrays of nanostructures in silicon and gallium arsenide by near-field enhanced laser irradiation in liquid precursors by Ulmeanu, M., Anghel, I., Filipescu, M., Luculescu, C., Enculescu, M., Zamfirescu, M.

“…[Display omitted] ► Near field optics in liquid media was implemented to nanostructure Si and GaAs. ► Periodic arrays of ring, disk and convex bumps were…”
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Self-assembly of colloidal particles on different surfaces by Ulmeanu, M., Zamfirescu, M., Medianu, R.

“…The self-assembly process of colloidal particles on different surfaces: mica, glass, Ag and Au thin films is presented. The quality of the self-assembled…”
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Single pulse near field study on a Co(3 nm)/Cu(6 nm)/Co(20 nm) multilayer structure by using a femtosecond laser by Ulmeanu, M., Jipa, F., Luculescu, C., Moldovan, A., Zamfirescu, M.

“…Single pulse near field study on a Co(3 nm)/Cu(6 nm)/Co(20 nm) multilayer structure was experimentally investigated with a laser pulse width of 200 fs at a…”
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Selective removal and patterning of a Co/Cu/Co trilayer created by femtosecond laser processing by Ulmeanu, M., Filipescu, M., Scarisoreanu, N. D., Georgescu, G., Rusen, L., Zamfirescu, M.

“…The selective removal and patterning of a typical pseudo-spin-valve structure, consisting of a Co(20 nm)/ Cu(6 nm)/Co(3 nm) trilayer, by femtosecond laser has…”
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Water-oil partition profiling of ionized drug molecules using cyclic voltammetry and a 96-well microfilter plate system by ULMEANU, Sorina M, JENSEN, Henrik, BOUCHARD, Géraldine, CARRUPT, Pierre-Alain, GIRAULT, Hubert H

“…A new experimental set-up for studying partitioning of ionizable drugs at the interface between two immiscible electrolyte solutions (ITIES) by amperometry is…”
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Cyclic voltammetry of highly hydrophilic ions at a supported liquid membrane by Ulmeanu, Sorina M, Jensen, Henrik, Samec, Zdenek, Bouchard, Géraldine, Carrupt, Pierre-Alain, Girault, Hubert H

“…Cyclic voltammetry has been used to study the coupling of ion transfer reactions at a liquid membrane. The liquids are either supported by a porous hydrophobic…”
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TEWALAS 20-TW femtosecond laser facility by Dabu, R, Banici, R, Blanaru, C, Fenic, C, Ionel, L, Jipa, F, Rusen, L, Simon, S, Stratan, A, Ulmeanu, M, Ursescu, D, Zamfirescu, M

“…TEWALAS facility consists in a Ti:sapphire laser system based on chirped pulse amplification. Oscillator femtosecond pulses, after passing through a booster…”
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Sintering the beaks of the elevator manufactured by direct metal laser sintering (DMLS) process from Co - Cr alloy by D. I. Băilă, C. V. Doicin, C. M. Cotruț, M. E. Ulmeanu, I. G. Ghionea, C. I. Tarbă

“…In this paper, two prototypes of dental elevator was made by DMLS process, using a super alloy powder of Co – Cr (ST2724G), with Phenix Systems machine, type…”
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C–Ni amorphous multilayers studied by atomic force microscopy by Ulmeanu, M, Serghei, A, Mihailescu, I.N, Budau, P, Enachescu, M

“…Amorphous C–Ni superlattice films designed as normal-incidence reflector for 5 nm have been grown on quartz substrate by magnetron sputter deposition. A new…”
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Numerical simulation of two-phase partition chromatography in microchannels for moderated log P measurements by Ulmeanu, Sorina M., Josserand, Jacques, Jensen, Henrik, Bouchard, Géraldine, Carrupt, Pierre-Alain, Girault, Hubert H.

“…A finite element simulation has been used in order to study the partition chromatography process of one species between an aqueous mobile phase and an organic…”
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Growth of carbon/nickel multilayer for X-ray–UV optics by RF reactive magnetron sputtering by Georgescu, G, Nelea, V, Ulmeanu, M, Ghica, C, Nastase, N

“…Amorphous C/Ni superlattice films designed as normal-incidence reflector for 5 nm have been grown on float-glass substrates by magnetron sputter deposition in…”
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Single pulse near field study on a Co(3 nm)/Cu(6 nm)/Co(20 nm) multilayer structure by using a femtosecond laser: Photo-excited Processes and Applications by ULMEANU, M, JIPA, F, LUCULESCU, C, MOLDOVAN, A, ZAMFIRESCU, M

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Ordering of free-standing Co nanoparticles by Leo, G., Chushkin, Y., Luby, S., Majkova, E., Kostic, I., Ulmeanu, M., Luches, A., Giersig, M., Hilgendorff, M.

“…Colloidal Co particles of 11 nm diameter were deposited on Si substrate by spin coating and/or casting in magnetic field. A perpendicular magnetic field…”
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Scalable fabrication of nanostructured p-Si/n-ZnO heterojunctions by femtosecond-laser processing by Georgiadou, D. G, Ulmeanu, M, Kompitsas, M, Argitis, P, Kandyla, M

“…Materials Research Express 1, 045902 (2014) We present a versatile, large-scale fabrication method for nanostructured semiconducting junctions. Silicon…”
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