Slot-grating flat lens for telecom wavelengths

Jonathan R Pugh; Jamie L Stokes; Martin Lopez-Garcia; Choon-How Gan; Geoff R Nash; John G Rarity; Martin J Cryan; Martin Lopez Garcia

doi:10.1364/OL.39.003786

Slot-grating flat lens for telecom wavelengths

Jonathan R Pugh, Jamie L Stokes, Martin Lopez-Garcia, Choon-How Gan, Geoff R Nash, John G Rarity, Martin J Cryan, Martin Lopez Garcia

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

1 Citation (Scopus)

Abstract

We present a stand-alone beam-focusing flat lens for use in the telecommunications wavelength range. Light incident on the back surface of the lens propagates through a subwavelength aperture and is heavily diffracted on exit and partially couples into a surface plasmon polariton and a surface wave propagating along the surface of the lens. Interference between the diffracted wave and re-emission from a grating patterned on the surface produces a highly collimated beam. We show for the first time a geometry at which a lens of this type can be used at telecommunication wavelengths (lambda = 1.55 mu m) and identify the light coupling and re-emission mechanisms involved. Measured beam profile results at varying incident wavelengths show excellent agreement with Lumerical FDTD simulation results. (C) 2014 Optical Society of America

Original language	English
Pages (from-to)	3786-3789
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	13
DOIs	https://doi.org/10.1364/OL.39.003786
Publication status	Published - 1 Jul 2014

Keywords

LASERS
LIGHT

Access to Document

10.1364/OL.39.003786

1 Finished

Integrated Tunable Flat Lenses (TuneFuL)
Cryan, M. J.
17/05/12 → 17/05/15
Project: Research

Professor Martin J Cryan
- M.Cryan@bristol.ac.uk
- Department of Electrical & Electronic Engineering - Professor of Applied Electromagnetics and Photonics
- Cabot Institute for the Environment
- The Bristol Centre for Nanoscience and Quantum Information
- Photonics
- Communication Systems and Networks
Person: Academic , Member

Cite this

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title = "Slot-grating flat lens for telecom wavelengths",

abstract = "We present a stand-alone beam-focusing flat lens for use in the telecommunications wavelength range. Light incident on the back surface of the lens propagates through a subwavelength aperture and is heavily diffracted on exit and partially couples into a surface plasmon polariton and a surface wave propagating along the surface of the lens. Interference between the diffracted wave and re-emission from a grating patterned on the surface produces a highly collimated beam. We show for the first time a geometry at which a lens of this type can be used at telecommunication wavelengths (lambda = 1.55 mu m) and identify the light coupling and re-emission mechanisms involved. Measured beam profile results at varying incident wavelengths show excellent agreement with Lumerical FDTD simulation results. (C) 2014 Optical Society of America",

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T1 - Slot-grating flat lens for telecom wavelengths

AU - Pugh, Jonathan R

AU - Stokes, Jamie L

AU - Lopez-Garcia, Martin

AU - Gan, Choon-How

AU - Nash, Geoff R

AU - Rarity, John G

AU - Cryan, Martin J

AU - Lopez Garcia, Martin

PY - 2014/7/1

Y1 - 2014/7/1

N2 - We present a stand-alone beam-focusing flat lens for use in the telecommunications wavelength range. Light incident on the back surface of the lens propagates through a subwavelength aperture and is heavily diffracted on exit and partially couples into a surface plasmon polariton and a surface wave propagating along the surface of the lens. Interference between the diffracted wave and re-emission from a grating patterned on the surface produces a highly collimated beam. We show for the first time a geometry at which a lens of this type can be used at telecommunication wavelengths (lambda = 1.55 mu m) and identify the light coupling and re-emission mechanisms involved. Measured beam profile results at varying incident wavelengths show excellent agreement with Lumerical FDTD simulation results. (C) 2014 Optical Society of America

AB - We present a stand-alone beam-focusing flat lens for use in the telecommunications wavelength range. Light incident on the back surface of the lens propagates through a subwavelength aperture and is heavily diffracted on exit and partially couples into a surface plasmon polariton and a surface wave propagating along the surface of the lens. Interference between the diffracted wave and re-emission from a grating patterned on the surface produces a highly collimated beam. We show for the first time a geometry at which a lens of this type can be used at telecommunication wavelengths (lambda = 1.55 mu m) and identify the light coupling and re-emission mechanisms involved. Measured beam profile results at varying incident wavelengths show excellent agreement with Lumerical FDTD simulation results. (C) 2014 Optical Society of America

KW - LASERS

KW - LIGHT

U2 - 10.1364/OL.39.003786

DO - 10.1364/OL.39.003786

M3 - Article (Academic Journal)

C2 - 24978737

VL - 39

SP - 3786

EP - 3789

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 13

ER -

Slot-grating flat lens for telecom wavelengths

Abstract

Keywords

Access to Document

Integrated Tunable Flat Lenses (TuneFuL)

Professor Martin J Cryan

Cite this