Nanoplasmonic Photoelectron Rescattering in the Multiphoton-Induced Emission Regime

被引：1

作者：

Banhegyi, Balazs ^{[1
,2
]}

Kiss, Gellert Zsolt ^{[1
]}

Papa, Zsuzsanna ^{[1
,3
]}

Sandor, Peter ^{[1
]}

Toth, Lazar ^{[3
]}

Peter, Laszlo ^{[1
]}

Racz, Peter ^{[1
]}

Dombi, Peter ^{[1
,3
]}

机构：

[1] HUN REN Wigner Res Ctr Phys, H-1121 Budapest, Hungary

[2] Budapest Univ Technol & Econ, H-1111 Budapest, Hungary

[3] ELI ALPS Res Inst, H-6728 Szeged, Hungary

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 03期

关键词：

ABOVE-THRESHOLD IONIZATION; FIELD ENHANCEMENT; ULTRAFAST; PHOTOEMISSION; ABSORPTION; DRIVEN;

D O I：

10.1103/PhysRevLett.133.033801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In strong-field laser-matter interactions, energetic electrons can be created by photoemission and a subsequent rescattering and can attain energy as much as 10 times the ponderomotive potential ( U p ) of the laser field. Here, we show that with the unique combination of infrared laser sources (exploiting the quadratic scaling of U p ) and plasmonic nanoemitters (which enhance rescattering probability by orders of magnitude) similar to 10 U p rescattered electrons can be observed in the multiphoton-induced regime. Our experiments correspond well to a model based on the time dependent Schr & ouml;dinger equation and allowed us to reveal an unexpected aspect of ultrafast electron dynamics in the multiphoton emission regime.

引用

页数：6