Experimental Confirmation of Miniature Spiral Plasmonic Lens as a Circular Polarization Analyzer

被引：181

作者：

Chen, Weibin ^{[1
]}

Abeysinghe, Don C. ^{[2
]}

Nelson, Robert L. ^{[3
]}

Zhan, Qiwen ^{[1
]}

机构：

[1] Univ Dayton, Electroopt Grad Program, Dayton, OH 45469 USA

[2] Univ Cincinnati, Dept Elect & Comp Engn, Cincinnati, OH 45219 USA

[3] USAF, Res Lab, Wright Patterson AFB, Dayton, OH 45433 USA

来源：

NANO LETTERS | 2010年 / 10卷 / 06期

关键词：

Surface plasmons; polarization selective devices; polarimetry; optical near-field; EVANESCENT BESSEL BEAM;

D O I：

10.1021/nl100340w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A spiral plasmonic lens can focus circular polarization of a given handedness while simultaneously defocus the circular polarization of the opposite chirality, which may be used as a miniature circular polarization analyzer. In this letter, we experimentally investigated the plasmonic focusing properties of the spiral lens using a collection mode near-field scanning optical microscope. A single Archimedes' spiral slot with a single turn was etched through gold thin film as a spiral plasmonic lens. The plasmonic field at the focus of a spiral lens strongly depends on the spin of the incident photon. Circular polarization extinction ratio better than 50 is obtainable with a device size as small as only 4 times of surface plasmon wavelength.

引用

页码：2075 / 2079

页数：5

共 15 条

[1] Surface plasmon subwavelength optics [J].

Barnes, WL ;

Dereux, A ;

Ebbesen, TW .

NATURE, 2003, 424 (6950) :824-830

[2] Plasmonic Lens Made of Multiple Concentric Metallic Rings under Radially Polarized Illumination [J].

Chen, Weibin ;

Abeysinghe, Don C. ;

Nelson, Robert L. ;

Zhan, Qiwen .

NANO LETTERS, 2009, 9 (12) :4320-4325

[3] Realization of an evanescent Bessel beam via surface plasmon interference excited by a radially polarized beam [J].

Chen, Weibin ;

Zhan, Qiwen .

OPTICS LETTERS, 2009, 34 (06) :722-724

[4] Gold Helix Photonic Metamaterial as Broadband Circular Polarizer [J].

Gansel, Justyna K. ;

Thiel, Michael ;

Rill, Michael S. ;

Decker, Manuel ;

Bade, Klaus ;

Saile, Volker ;

von Freymann, Georg ;

Linden, Stefan ;

Wegener, Martin .

SCIENCE, 2009, 325 (5947) :1513-1515

[5]

Goldstein D., 2003, POLARIZED LIGHT, V2nd

[6]

GORODETSKI Y, 2008, PHYS REV LETT, V101

[7] Demonstration of Nanofocusing by the use of Plasmonic Lens Illuminated with Radially Polarized Light [J].

Lerman, Gilad M. ;

Yanai, Avner ;

Levy, Uriel .

NANO LETTERS, 2009, 9 (05) :2139-2143

[8] Micropolarizer array for infrared imaging polarimetry [J].

Nordin, GP ;

Meier, JT ;

Deguzman, PC ;

Jones, MW .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1999, 16 (05) :1168-1174

[9]

Novotny L., 2012, PRINCIPLES NANOOPTIC

[10] Study of surface plasmon chirality induced by Archimedes' spiral grooves [J].

Ohno, T ;

Miyanishi, S .

OPTICS EXPRESS, 2006, 14 (13) :6285-6290

← 1 2 →