Femtosecond intrapulse evolution of the magneto-optic Kerr effect in magnetoplasmonic crystals

被引：15

作者：

Shcherbakov, M. R. ^{[1
,2
]}

Vabishchevich, P. P. ^{[1
]}

Frolov, A. Yu. ^{[1
]}

Dolgova, T. V. ^{[1
]}

Fedyanin, A. A. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia

[2] Samsung R&D Inst Russia, Moscow 127018, Russia

来源：

PHYSICAL REVIEW B | 2014年 / 90卷 / 20期

基金：

俄罗斯基础研究基金会;

关键词：

SURFACE; ENHANCEMENT; DYNAMICS; NICKEL; WAVES;

D O I：

10.1103/PhysRevB.90.201405

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In magnetoplasmonics, it is possible to tailor the magneto-optical properties of nanostructures by exciting surface plasmon polaritons (SPPs). Thus far, magnetoplasmonic effects have been considered to be static. Here, we describe ultrafast manifestations of magnetoplasmonics by observing the nontrivial evolution of the transverse magneto-optic Kerr effect within 45-fs pulses reflected from an iron-based magnetoplasmonic crystal. The effect occurs for resonant SPP excitations, displays opposite time derivative signs for different slopes of the resonance, and is explained with the magnetization-dependent dispersion relation of SPPs.

引用

页数：5

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