Observation of Orbital Angular Momentum Sidebands due to Optical Reflection

被引：45

作者：

Loffler, W. ^{[1
]}

Aiello, Andrea ^{[2
,3
]}

Woerdman, J. P. ^{[1
]}

机构：

[1] Leiden Univ, Huygens Lab, NL-2300 RA Leiden, Netherlands

[2] Max Planck Inst Sci Light, D-91058 Erlangen, Germany

[3] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, D-91058 Erlangen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 11期

关键词：

IMBERT-FEDOROV SHIFTS; GOOS-HANCHEN; LIGHT-BEAM; PROPAGATION;

D O I：

10.1103/PhysRevLett.109.113602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate how the orbital angular momentum of a paraxial light beam is affected upon reflection at a planar interface. Theoretically, the unavoidable angular spread of the beam leads to orbital angular momentum sidebands, which are found to be already significant for a modest beam spread (0.05). In analogy to the polarization Fresnel coefficients, we develop an analytical theory based upon spatial Fresnel coefficients; this allows a straightforward prediction of the strength of the sidebands. We confirm this by experiment and numerical simulation.

引用

页数：5

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