TY - JOUR
T1 - All-optical spatio-temporal control of electron emission from SiO2 nanospheres with femtosecond two-color laser fields
AU - Liu, Qingcao
AU - Zherebtsov, Sergey
AU - Seiffert, Lennart
AU - Skruszewicz, Slawomir
AU - Zietlow, Dominik
AU - Ahn, Seongjin
AU - Rupp, Philipp
AU - Wnuk, Pawel
AU - Sun, Shaohua
AU - Kessel, Alexander
AU - Trushin, Sergei
AU - Schlander, Annika
AU - Kim, Dongeon
AU - Rühl, Eckart
AU - Ciappina, Marcelo F.
AU - Tiggesbäumker, Josef
AU - Gallei, Markus
AU - Fennel, Thomas
AU - Kling, Matthias F.
N1 - Publisher Copyright:
© 2019 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft
PY - 2019/7/1
Y1 - 2019/7/1
N2 - Field localization by nanostructures illuminated with laser pulses of well-defined waveform enables spatio-temporal tailoring of the near-fields for sub-cycle control of electron dynamics at the nanoscale. Here, we apply intense linearly-polarized two-color laser pulses for all-optical control of the highest energy electron emission from SiO2 nanoparticles. For the size regime where light propagation effects become important, we demonstrate the possibility to control the preferential emission angle of a considerable fraction of the fastest electrons by varying the relative phase of the two-color field. Trajectory based semi-classical simulations show that for the investigated nanoparticle size range the directional steering can be attributed to the two-color effect on the electron trajectories, while the accompanied modification of the spatial distribution of the ionization rate on the nanoparticle surface has only a minor effect.
AB - Field localization by nanostructures illuminated with laser pulses of well-defined waveform enables spatio-temporal tailoring of the near-fields for sub-cycle control of electron dynamics at the nanoscale. Here, we apply intense linearly-polarized two-color laser pulses for all-optical control of the highest energy electron emission from SiO2 nanoparticles. For the size regime where light propagation effects become important, we demonstrate the possibility to control the preferential emission angle of a considerable fraction of the fastest electrons by varying the relative phase of the two-color field. Trajectory based semi-classical simulations show that for the investigated nanoparticle size range the directional steering can be attributed to the two-color effect on the electron trajectories, while the accompanied modification of the spatial distribution of the ionization rate on the nanoparticle surface has only a minor effect.
KW - Dielectric nanospheres
KW - Spatio-temporal control
KW - Two-color laser fields
KW - Ultrafast nanophysics
UR - http://www.scopus.com/inward/record.url?scp=85070772561&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/ab26c1
DO - 10.1088/1367-2630/ab26c1
M3 - 文章
AN - SCOPUS:85070772561
SN - 1367-2630
VL - 21
JO - New Journal of Physics
JF - New Journal of Physics
IS - 7
M1 - 073011
ER -