Polarization response in extreme nonlinear optics: when can the semiclassical approach be used?

被引：17

作者：

Bogatskaya, A. V. ^{[1
,2
,3
]}

Volkova, E. A. ^{[2
]}

Kharin, V. Yu ^{[4
]}

Popov, A. M. ^{[1
,2
,3
]}

机构：

[1] DV Skobeltsyn Inst Nucl Phys, Moscow, Russia

[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow, Russia

[3] RAS, PN Lebedev Phys Inst, Moscow 117901, Russia

[4] Helmholtz Inst, Jena, Germany

来源：

LASER PHYSICS LETTERS | 2016年 / 13卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

multiphoton ionization; photorecombination; semiclassical approach; quantum electrodynamics; high harmonic generation; HARMONIC-GENERATION; ATTOSECOND PULSES; RARE-GASES; RADIATION; LIGHT; IONIZATION; PHYSICS;

D O I：

10.1088/1612-2011/13/4/045301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Availability of the semiclassical approach in strong-field physics and extreme nonlinear optics is analyzed. It is found that it is valid for calculation of the emission to the initially populated bound state only if population of this state is close to unity during the pulse and in the after pulse regime. If the initial level is depleted, the semiclassical approach fails and should be replaced by quantum-electrodynamical calculations. Also it is demonstrated that the bremsstrahlung spectrum cannot be correctly described in the frames of the semiclassical approach.

引用

页数：6

共 32 条

[1] The physics of attosecond light pulses [J].