Generation of sub-diffraction-limited pure longitudinal magnetization by the inverse Faraday effect by tightly focusing an azimuthally polarized vortex beam

被引：78

作者：

Jiang, Yunshan ^{[1
,2
]}

Li, Xiangping ^{[1
]}

Gu, Min ^{[1
]}

机构：

[1] Swinburne Univ Technol, Fac Engn & Ind Sci, Ctr Microphoton, Hawthorn, Vic 3122, Australia

[2] Zhejiang Univ, Dept Opt Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

OPTICS LETTERS | 2013年 / 38卷 / 16期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1364/OL.38.002957

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter we report on the generation of sub-diffraction-limited pure longitudinal magnetization in optomagnetic materials. The interaction between polarization singularities of cylindrically polarized beams and optical vortices in the tight focus of a high numerical-aperture objective as well as the induced magnetic fields through the inverse Faraday effect are investigated. A pure longitudinal magnetization distribution throughout the entire focal plane, which has a 15% reduction in the lateral full width at half-maximum, is achieved by tightly focusing an azimuthally polarized vortex beam. (C) 2013 Optical Society of America

引用

页码：2957 / 2960

页数：4

共 16 条

[1] Inverse Faraday Effect with Linearly Polarized Laser Pulses [J].

Ali, S. ;

Davies, J. R. ;

Mendonca, J. T. .

PHYSICAL REVIEW LETTERS, 2010, 105 (03)

[2]

[Anonymous], 2000, ADV OPTICAL IMAGING

[3] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[4] Three-dimensional deep sub-diffraction optical beam lithography with 9 nm feature size [J].

Gan, Zongsong ;

Cao, Yaoyu ;

Evans, Richard A. ;

Gu, Min .

NATURE COMMUNICATIONS, 2013, 4

[5] Focusing of doughnut laser beams by a high numerical-aperture objective in free space [J].

Ganic, D ;

Gan, XS ;

Gu, M .

OPTICS EXPRESS, 2003, 11 (21) :2747-2752

[6] Light-induced magnetic vortices [J].

Helseth, Lars Egil .

OPTICS LETTERS, 2011, 36 (06) :987-989

[7]

Kimel AV, 2005, NATURE, V435, P655, DOI [10.1038/nature03564, 10.1038/nature03S64]

[8] Three-dimensional orientation-unlimited polarization encryption by a single optically configured vectorial beam [J].

Li, Xiangping ;

Lan, Tzu-Hsiang ;

Tien, Chung-Hao ;

Gu, Min .

NATURE COMMUNICATIONS, 2012, 3

[9] THEORETICAL DISCUSSION OF INVERSE FARADAY EFFECT RAMAN SCATTERING AND RELATED PHENOMENA [J].

PERSHAN, PS ;

VANDERZI.JP ;

MALMSTROM, LD .

PHYSICAL REVIEW, 1966, 143 (02) :574-+

[10]

PITAEVSKII LP, 1961, SOV PHYS JETP-USSR, V12, P1008

← 1 2 →