Circular dichroism of cholesteric polymers and the orbital angular momentum of light

被引：78

作者：

Loeffler, W. ^{[1
]}

Broer, D. J. ^{[2
]}

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

机构：

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

[2] Eindhoven Univ Technol, Dept Funct Organ Mat & Devices, NL-5600 MB Eindhoven, Netherlands

来源：

PHYSICAL REVIEW A | 2011年 / 83卷 / 06期

关键词：

BRAGG REFLECTION; PHOTOPOLYMERIZATION; NETWORKS;

D O I：

10.1103/PhysRevA.83.065801

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We explore experimentally if light's orbital angular momentum (OAM) interacts with chiral nematic polymer films. Specifically, we measure the circular dichroism of such a material using light beams with different OAM. We investigate the case of strongly focused, nonparaxial light beams, where the spatial and polarization degrees of freedom are coupled. Within the experimental accuracy, we cannot find any influence of the OAM on the circular dichroism of cholesteric polymers.

引用

页数：3

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