Control of molecular dissociation by spatially inhomogeneous near fields

0501828 - FZÚ 2019 RIV US eng J - Journal Article
Yavuz, I. - Schötz, J. - Ciappina, Marcelo F. - Rosenberger, P. - Altun, Z. - Lewenstein, M. - Kling, M.F.
Control of molecular dissociation by spatially inhomogeneous near fields.
Physical Review A. Roč. 98, č. 4 (2018), s. 1-6, č. článku 043413. ISSN 2469-9926. E-ISSN 2469-9934
R&D Projects: GA MŠMT EF16_019/0000789; GA MŠMT LQ1606
Grant - others:OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institutional support: RVO:68378271
Keywords : intense laser fields * electron acceleration * dielectric nanospheres * driven * photoemission * pulses * localization * nanoparticles * dependence * emission
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 2.907, year: 2018

Tailored intense laser fields can be used to steer electron and nuclear dynamics in molecules and control chemical reactions. Here we demonstrate that inhomogeneous nanoscopic near fields provide an additional mechanism for controlling light-induced chemical reactions. This is investigated by quantum-dynamical calculations on dissociation of H-2(+) in few-cycle near fields with a controlled carrier-envelope phase. Directional dissociation asymmetry analysis reveals that the spatial asymmetry of the field is critical in controlling and in modifying field-induced dissociation pathways such as zero-photon dissociation, bond softening, and above-threshold dissociation. The degree of impact strongly depends on the maximum length scale of coherent control in a dissociation channel. The results pave the way towards coherent control of molecular reactions in a wide range of molecules in inhomogeneous near fields.
Permanent Link: http://hdl.handle.net/11104/0293808