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  • First results on laser-indu...
    Bionta, M.R.; Chalopin, B.; Masseboeuf, A.; Chatel, B.

    Ultramicroscopy, 12/2015, Letnik: 159, Številka: 2
    Journal Article

    We present the first demonstration of ultrafast laser-induced field emission and measurement of the energy distribution of electrons from a nanotip based on a carbon nanotube (CNT). Our experimental setup extends the studies performed on conventional tungsten or gold tips by using this new innovative tip. The carbon tip consists of concentric carbon layers in the shape of a cone, and has been previously studied as a very good candidate for cold field emission. The first laser-induced field emission from a CNT-based nanotip has been observed and we measured the energy spectrum as well as the polarization dependance of the emission. We also characterize the damage threshold of the tip, when illuminated by a high repetition rate femtosecond laser. These first results are encouraging further studies of electron emission from CNT-based carbon nanotips. •First demonstration of ultrafast-laser induced emission from a CNT based nanotip.•Nanotip consists of concentric carbon layers in the shape of a cone.•Measurements of the energy spectrum and polarization dependence of emission.•Characterization of tip damage threshold.