Subwavelength line imaging using plasmonic waveguides
Subwavelength line imaging using plasmonic waveguides
We investigate the subwavelength imaging capacity of a two-dimensional fanned-out plasmonic waveguide array, formed by air channels surrounded by gold metal layers for operation at near-infrared wavelengths, via finite element simulations. High resolution is achieved on one side of the device by tapering down the channel width while simultaneously maintaining propagation losses of a few dB. On the other, low resolution side, output couplers are designed to optimize coupling to free space and to minimize channel cross talk via surface plasmons. Point sources separated by lambda/15 can still be clearly distinguished. Moreover, up two 90% of the power of a point dipole is coupled to the device. Applications are high-resolution linear detector arrays and, by operating the device in reverse, high-resolution optical writing.
1-7
Podoliak, Nina
0908b951-00a7-48a5-bc82-631640910b9c
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Prangsma, Jord C.
f7c7b82c-5a67-4a38-b203-2a3e4df2c2bf
Pinkse, Pepijn W.H.
2e9f21e5-0ce1-4d97-b390-f35009e7c2ac
February 2015
Podoliak, Nina
0908b951-00a7-48a5-bc82-631640910b9c
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Prangsma, Jord C.
f7c7b82c-5a67-4a38-b203-2a3e4df2c2bf
Pinkse, Pepijn W.H.
2e9f21e5-0ce1-4d97-b390-f35009e7c2ac
Podoliak, Nina, Horak, Peter, Prangsma, Jord C. and Pinkse, Pepijn W.H.
(2015)
Subwavelength line imaging using plasmonic waveguides.
IEEE Journal of Quantum Electronics, 51 (2), .
(doi:10.1109/JQE.2014.2385153).
Abstract
We investigate the subwavelength imaging capacity of a two-dimensional fanned-out plasmonic waveguide array, formed by air channels surrounded by gold metal layers for operation at near-infrared wavelengths, via finite element simulations. High resolution is achieved on one side of the device by tapering down the channel width while simultaneously maintaining propagation losses of a few dB. On the other, low resolution side, output couplers are designed to optimize coupling to free space and to minimize channel cross talk via surface plasmons. Point sources separated by lambda/15 can still be clearly distinguished. Moreover, up two 90% of the power of a point dipole is coupled to the device. Applications are high-resolution linear detector arrays and, by operating the device in reverse, high-resolution optical writing.
Text
6969.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 23 December 2014
Published date: February 2015
Organisations:
Optoelectronics Research Centre, Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 376880
URI: http://eprints.soton.ac.uk/id/eprint/376880
ISSN: 0018-9197
PURE UUID: 6eb5c780-a74a-4a34-bda8-ea184e42135d
Catalogue record
Date deposited: 11 May 2015 11:08
Last modified: 15 Mar 2024 03:36
Export record
Altmetrics
Contributors
Author:
Nina Podoliak
Author:
Peter Horak
Author:
Jord C. Prangsma
Author:
Pepijn W.H. Pinkse
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics