Control of temporal mapping and harmonic intensity modulation using two-color orthogonally polarized fields

被引：17

作者：

Hoffmann, David J. ^{[1
]}

Hutchison, Chris ^{[1
]}

Zair, Amelle ^{[1
]}

Marangos, Jonathan P. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW, England

来源：

PHYSICAL REVIEW A | 2014年 / 89卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

LASER FIELDS; GENERATION; IONIZATION; PATH;

D O I：

10.1103/PhysRevA.89.023423

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate theoretically control over the time-frequency mapping in two-color high-order harmonic generation. By changing the temporal delay between a driving field and its orthogonally polarized second harmonic we are able to preferentially select between the short- and long-orbit contributions to the harmonic emission along both polarization axes. This trajectory selection is interpreted through use of classical and quantum orbit models. We further observe, and explain, different modulations in intensity of odd and even order harmonic emission modeled via a full macroscopic propagation model coupled to a single-atom quantum orbit treatment.

引用

页数：11

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