Active Two-Dimensional Steering of Radiation from a Nanoaperture

Laura S. Dreissen; Hugo F. Schouten; Wim Ubachs; Shreyas B. Raghunathan; Taco D. Visser

doi:10.1021/acs.nanolett.8b03319

Active Two-Dimensional Steering of Radiation from a Nanoaperture

Laura S. Dreissen, Hugo F. Schouten, Wim Ubachs, Shreyas B. Raghunathan, Taco D. Visser^*

^*Corresponding author for this work

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nanoaperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited. Using a spatial light modulator, the superposition of the three modes can be altered, thus allowing for a controlled variation of the radiation pattern that emanates from the nanoaperture. Robust and stable steering of 9.5° in two orthogonal directions was achieved.

Original language	English
Pages (from-to)	7207-7210
Number of pages	4
Journal	Nano Letters
Volume	18
Issue number	11
DOIs	https://doi.org/10.1021/acs.nanolett.8b03319
Publication status	Published - 14 Nov 2018

Funding

The authors wish to thank Andries Lof of AMOLF NanoCenter Amsterdam for fabrication of the sample. T.D.V. acknowledges support from the Air Force Office of Scientific Research under award number FA9550-16-1-0119.

Funders	Funder number
Air Force Office of Scientific Research	FA9550-16-1-0119

Keywords

diffraction
guided modes
Nanoapertures
optical switch
radiation steering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acs.nanolett.8b03319

Persistent URL (handle)

Copy link address

Cite this

@article{6d798748db694bfdac56555d2e3f362d,

title = "Active Two-Dimensional Steering of Radiation from a Nanoaperture",

abstract = "We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nanoaperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited. Using a spatial light modulator, the superposition of the three modes can be altered, thus allowing for a controlled variation of the radiation pattern that emanates from the nanoaperture. Robust and stable steering of 9.5° in two orthogonal directions was achieved.",

keywords = "diffraction, guided modes, Nanoapertures, optical switch, radiation steering",

author = "Dreissen, {Laura S.} and Schouten, {Hugo F.} and Wim Ubachs and Raghunathan, {Shreyas B.} and Visser, {Taco D.}",

year = "2018",

month = nov,

day = "14",

doi = "10.1021/acs.nanolett.8b03319",

language = "English",

volume = "18",

pages = "7207--7210",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "11",

}

TY - JOUR

T1 - Active Two-Dimensional Steering of Radiation from a Nanoaperture

AU - Dreissen, Laura S.

AU - Schouten, Hugo F.

AU - Ubachs, Wim

AU - Raghunathan, Shreyas B.

AU - Visser, Taco D.

PY - 2018/11/14

Y1 - 2018/11/14

N2 - We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nanoaperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited. Using a spatial light modulator, the superposition of the three modes can be altered, thus allowing for a controlled variation of the radiation pattern that emanates from the nanoaperture. Robust and stable steering of 9.5° in two orthogonal directions was achieved.

AB - We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nanoaperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited. Using a spatial light modulator, the superposition of the three modes can be altered, thus allowing for a controlled variation of the radiation pattern that emanates from the nanoaperture. Robust and stable steering of 9.5° in two orthogonal directions was achieved.

KW - diffraction

KW - guided modes

KW - Nanoapertures

KW - optical switch

KW - radiation steering

UR - http://www.scopus.com/inward/record.url?scp=85056388920&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056388920&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.8b03319

DO - 10.1021/acs.nanolett.8b03319

M3 - Article

C2 - 30372090

AN - SCOPUS:85056388920

SN - 1530-6984

VL - 18

SP - 7207

EP - 7210

JO - Nano Letters

JF - Nano Letters

IS - 11

ER -

Active Two-Dimensional Steering of Radiation from a Nanoaperture

Abstract

Funding

Keywords

UN SDGs

Access to Document

Persistent URL (handle)

Other files and links

Fingerprint

Cite this