Few-cycle optical-field-induced photoemission from biased surfaces: An exact quantum theory
Few-cycle optical-field-induced photoemission from biased surfaces: An exact quantum theory
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来自偏置表面的少周期光场诱导光发射:精确的量子理论
DOI:
10.1103/physrevb.103.085410
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发表时间:
2021
影响因子:
3.7
通讯作者:
Peng Zhang
中科院分区:
文献类型:
--
作者:
Yi;Yang Zhou;Peng Zhang
Photoemission driven by ultrafast optical fields enables spatiotemporal control of electron motion with extremely high precision. Here, we present a quantum model for ultrafast photoelectron emission from a dc-biased surface induced by laser pulses of arbitrary duration, ranging from subcycle to continuous wave, by solving the time-dependent Schr\"odinger equation exactly. The single formulation is valid from photon-driven electron emission in low intensity optical fields to field-driven emission in high intensity optical fields. We find the emitted charge per pulse oscillatorily increases with pulse repetition rate, due to varying coherent interaction of neighboring laser pulses. For a well-separated single pulse, our results recover the experimentally observed vanishing carrier-envelope phase sensitivity in the optical-field regime. We also find that applying a large dc field to the photoemitter is able to greatly enhance the photoemission current and in the meantime substantially shorten the current pulse.
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影响因子:
19.6
作者:
Putnam, William P.;Hobbs, Richard G.;Kaertner, Franz X.
通讯作者:
Kaertner, Franz X.
影响因子:
8.6
作者:
Park, Doo Jae;Piglosiewicz, Bjoern;Lienau, Christoph
通讯作者:
Lienau, Christoph
影响因子:
35
作者:
Stockman, Mark I.;Kling, Matthias F.;Krausz, Ferenc
通讯作者:
Krausz, Ferenc
DOI:
10.1103/physreva.101.013411
发表时间:
2020
期刊:
Physical review and Physical review letters index
影响因子:
--
作者:
Li, Jianxiong;Thumm, Uwe
通讯作者:
Thumm, Uwe
影响因子:
8.6
作者:
Foerster, Michael;Paschen, Timo;Hommelhoff, Peter
通讯作者:
Hommelhoff, Peter