Ultrafast and Efficient Control of Coherent Electron Dynamics via SPODS
Ultrafast and Efficient Control of Coherent Electron Dynamics via SPODS
复制标题
通过 SPODS 超快速有效地控制相干电子动力学
DOI:
10.1002/9781119096276.ch6
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
T. Baumert
中科院分区:
文献类型:
--
作者:
T. Bayer;M. Wollenhaupt;H. Braun;T. Baumert
Direct manipulation of charge oscillations in atoms and molecules has emerged as a remarkable perspective in coherent control of photophysical processes. These oscillations have a typical Bohr period of around 1 fs for valence electrons; therefore, control has to be exerted on a shorter timescale. Non‐perturbative excitation with precisely shaped intense femtosecond laser pulses is used to induce these charge oscillations as well as to efficiently steer population to different target states. Alignment or anti‐alignment of the laser's electric field with respect to the induced dipole‐moment decreases or increases the interaction energy, respectively, which eventually gives access to the population of different target states. This classical picture of the physical mechanism is verified by solving the time‐dependent Schrödinger equation, where the dressed state representation shows the closest resemblance with the classical one. Selective Population of Dressed States (SPODS) gives a one‐to‐one correspondence to the important aspects of the classical picture. Tunability of this bidirectional Stark effect up to nearly 300 meV, a selectivity of almost up to 100% and a precision down to the sub‐10 attosecond regime is demonstrated experimentally on atoms and molecules with a theoretical efficiency up to 100%. In molecules vibrational wave packet motion alters the Bohr period in addition. We conclude that SPODS with simple ultrashort optimal pulse shapes is suitable for robust laser control of chemical reactions.
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影响因子:
8.6
作者:
C. Trallero;J. L. Cohen;T. Weinacht
通讯作者:
T. Weinacht
DOI:
10.1039/c0cp02318c
发表时间:
2011
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
Stefan Ruetzel;Christoph Stolzenberger;F. Dimler;D. Tannor;T. Brixner
通讯作者:
T. Brixner
影响因子:
8.6
作者:
Kosloff;Hammerich;Tannor
通讯作者:
Tannor
影响因子:
3.4
作者:
P. von den Hoff;M. Kowalewski;R. de Vivie
通讯作者:
R. de Vivie
影响因子:
3.4
作者:
M. Wollenhaupt;T. Baumert
通讯作者:
M. Wollenhaupt;T. Baumert