58 research outputs found
Formation of silicon nanowire packed films from metallurgical-grade silicon powder using a two-step metal-assisted chemical etching method
Get PDFOxidative tissue injury in multiple sclerosis is only partly reflected in experimental disease models
Get PDFFabrication of ordered arrays of silicon cones by optical diffraction in ultrafast laser etching with SF6
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Vibrations at surfaces 8 - Proceedings of the 8th International Conference on Vibrations at Surfaces - The University of Birmingham, UK, 23-27, June 1996 - Preface
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Tunable pulsed vacuum ultraviolet light source for surface science and materials spectroscopy based on high order harmonic generation
No full textWe report here the development of a tunable vacuum ultraviolet light source, providing subpicosecond pulses over the wavelength range from 114 (∼11 eV) to 32 nm (∼39 eV), designed for surface science experiments. The source is based on high order harmonic generation. The experimental setup is described in detail and the harmonic yield as a function of the gas type (xenon or argon) is compared with theoretical descriptions. We address in particular the tunability of the source, desirable for surface science applications. Absolute characterization of the harmonic yield has also been performed and validated with time-resolved fluorescence measurements. The results are extremely promising, with intensities of ∼ 1010 photons/s, with regard to the use of this coherent source for surface science and spectroscopy. © 2001 American Institute of Physics
Synthesis - Regime change for nanowire growth
No full textGold nanoparticles are routinely used as 'seeds' to grow semiconductor nanowires and it has now been discovered that the nanowires grow faster when the gold seeds are placed closer together
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