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Laser-induced field emission from a tungsten tip in weak and strong optical fields

Date Do, 18.09.2014 - Do, 18.09.2014
Time 11.15
Speaker Dr. Hirofumi Yanagisawa, Institute for Quantum Electronics, ETH Zürich
Location Universität Bern, Institut für Angewandte Physik, Gebäude exakte Wissenschaften, Hörsaal B116, Sidlerstrasse 5, 3012 Bern
Program Illuminating a sharp metallic tip with femtosecond laser pulses leads to pulsed field emission. In this presentation, we will
present three topics on the laser-induced field emission. Firstly we go through our previous work on site-selective laser-
induced field emission from a tungsten tip1) and its emission mechanism in weak optical fields2), and then we particularly
focus on our recent results on emission mechanism in strong optical fields3). 1) H. Yanagisawa, et. al., Phys. Rev. Lett.
103, 257603 (2009). 2) H. Yanagisawa, et. al., Phys. Rev. Lett. 107, 087601 (2011). 3) H. Yanagisawa, et. al., arXiv:
1405.0609 (2014)
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