Harmonic Generation from Neutral Manganese Atoms in the Vicinity of the Giant Autoionization Resonance

被引：43

作者：

Fareed, M. A. ^{[1
]}

Strelkov, V. V. ^{[2
,3
]}

Singh, M. ^{[1
]}

Thire, N. ^{[1
]}

Mondal, S. ^{[1
,4
]}

Schmidt, B. E. ^{[1
,5
]}

Legare, F. ^{[1
]}

Ozaki, T. ^{[1
]}

机构：

[1] Inst Natl Rech Sci, Ctr Energie Mat Telecommun, 1650 Lionel Boulet, Varennes, PQ J3X 1S2, Canada

[2] RAS, AM Prokhorov Gen Phys Inst, Vavilova St 38, Moscow 119991, Russia

[3] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

[4] ELI Hu Kft, ELI ALPS, Dugonics Ter 13, H-6720 Szeged, Hungary

[5] Few Cycle Inc, 2890 Rue Beaurivage, Montreal, PQ H1L 5W5, Canada

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 02期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会; 俄罗斯科学基金会;

关键词：

3P PHOTOABSORPTION; RARE-GASES; PLASMA; SPECTROSCOPY; ENHANCEMENT; RADIATION; ABLATION; PULSE; MN+; CR;

D O I：

10.1103/PhysRevLett.121.023201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High harmonics from laser-ablated plumes are mostly generated from ionic species. We demonstrate that with ultrashort infrared (similar to 1.82 mu m) driving lasers, high harmonics from laser-ablated manganese are predominantly generated from neutral atoms, a transition metal atom with an ionization potential of 7.4 eV. Our results open the possibility to advance laser-ablation technique to study the dynamics of neutral atoms of low ionization potential. Moreover, as manganese contains giant autoionizing resonance, intense and broadband high harmonics have been demonstrated from this resonance at energies from 49 to 53 eV. This opens the possibility to generate intense attosecond pulses directly from the giant resonances, as well as to study these resonances using high-harmonic spectroscopy.

引用

页数：6

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