Depolarization of a randomly distributed plasmonic meander metasurface characterized by Mueller matrix spectroscopic ellipsometry

被引：0

作者：

Fu L. ^{[1
]}

Berrier A. ^{[2
]}

Li H. ^{[1
]}

Schau P. ^{[1
]}

Frenner K. ^{[1
]}

Dressel M. ^{[2
]}

Osten W. ^{[1
]}

机构：

[1] Institute of Applied Optics and Research Center SCoPE, Pfaffenwaldring 9, Stuttgart

[2] 1. Physikalisches Institut and Research Center SCoPE, Universität Stuttgart, Pfaffenwaldring 57, Stuttgart

来源：

Optics Express | 2016年 / 24卷 / 24期

关键词：

Optical properties - Depolarization - Spectroscopic ellipsometry - Surface plasmon resonance - Incident light - Light polarization;

D O I：

10.1364/OE.24.028056

中图分类号：

学科分类号：

摘要：

Metallic nanostructures offer efficient solutions in polarization control with a very low thickness. In this report, we investigate the optical properties of a nano-fabricated plasmonic pseudo-depolarizer using Mueller matrix spectroscopic ellipsometry in transmission configuration. The depolarizer is composed of 256 square cells, each containing a periodically corrugated metallic film with random orientation. The full Mueller matrix was analyzed as a function of incident angle in a range between 0 and 20° and over the whole rotation angle range. Depolarization could be achieved in two visible wavelength regions around the short-range and long-range surface plasmon polariton frequencies, respectively. Furthermore, depolarization for circularly polarized light was 2.5 times stronger than that for linearly polarized light. Our results could work as a guidance for realizing a broadband high efficiency dielectric metasurface depolarizers. © 2016 Optical Society of America.

引用

页码：28056 / 28064

页数：8