Plasmonic nano-antennas for next-generation photon sources

Plasmonic Colour Filters Based on Coaxial Holes in Aluminium

Ranjith Rajasekharan Unnithan, Miao Sun, Xin He, Eugeniu Balaur, Alexander Minovich, Dragomir N Neshev, Efstratios Skafidas, Ann Roberts

2017-04-01

Aluminum is an alternative plasmonic material in the visible regions of the spectrum due to its attractive properties such as low ..

Switchable polarization rotation of visible light using a plasmonic metasurface

Stuart K Earl, Timothy D James, Daniel E Gomez, Robert E Marvel, Richard F Haglund, Ann Roberts

2017-01-01

A metasurface comprising an array of silver nanorods supported by a thin film of the phase change material vanadium dioxide is use..

Plasmonic Metasurface-Enabled Differential Photodetectors for Broadband Optical Polarization Characterization

Evgeniy Panchenko, Jasper J Cadusch, Timothy D James, Ann Roberts

2016-10-01

The polarization state of an optical field is central to applications in optical communications, imaging, and data storage as well..

Photoinduced Electron Transfer in the Strong Coupling Regime: Waveguide-Plasmon Polaritons

Peng Zeng, Jasper Cadusch, Debadi Chakraborty, Trevor A Smith, Ann Roberts, John E Sader, Timothy J Davis, Daniel E Gomez

2016-04-01

Reversible exchange of photons between a material and an optical cavity can lead to the formation of hybrid light-matter states wh..

Modified stripe waveguide design for plasmonic input port structures

Evgeniy Panchenko, Timothy D James, Ann Roberts

2016-01-01

We present a modified asymmetric stripe plasmonic waveguide design for plasmonic integrated input port structures. Such a waveguid..

Broadband chirality-coded meta-aperture for photon-spin resolving

Luping Du, Shan Shan Kou, Eugeniu Balaur, Jasper J Cadusch, Ann Roberts, Brian Abbey, Xiao-Cong Yuan, Dingyuan Tang, Jiao Lin

2015-12-01

The behaviour of light transmitted through an individual subwavelength aperture becomes counterintuitive in the presence of surrou..

Micro-concave waveguide antenna for high photon extraction from nitrogen vacancy centers in nanodiamond

R Rajasekharan, G Kewes, A Djalalian-Assl, K Ganesan, S Tomljenovic-Hanic, JC McCallum, A Roberts, O Benson, S Prawer

2015-07-14

The negatively charged nitrogen-vacancy colour center (NV(-) center) in nanodiamond is an excellent single photon source due to it..

Optical ‘magnetic mirror’ metasurfaces using interference between Fabry-Pérot cavity resonances in coaxial apertures

R Rajasekharan, A Roberts

2015-05-28

Here we propose and computationally demonstrate a quasi-planar metasurface consisting of arrays of pairs of concentric coaxial ape..

Surface plasmon wave plates

Amir Djalalian-Assl, Jasper J Cadusch, Zhi Qin Teo, Timothy J Davis, Ann Roberts

2015-01-26

Here, we investigate both numerically and experimentally, the polarization conversion capabilities of a rectangular array of holes..

Collective excitation of plasmonic hot-spots for enhanced hot charge carrier transfer in metal/semiconductor contacts

Adrien Piot, Stuart K Earl, Charlene Ng, Svetlana Dligatch, Ann Roberts, Timothy J Davis, Daniel E Gomez

2015-01-01

We show how a combination of near- and far-field coupling of the localised surface plasmon resonances in aluminium nanoparticles d..

Emission enhancement and polarization of semiconductor quantum dots with nanoimprinted plasmonic cavities: towards scalable fabrication of plasmon-exciton displays

Jasper J Cadusch, Evgeniy Panchenko, Nicholas Kirkwood, Timothy D James, Brant C Gibson, Kevin J Webb, Paul Mulvaney, Ann Roberts

2015-01-01

Here we present an application of a high throughput nanofabrication technique to the creation of a plasmonic metasurface and demon..

Material effects on V-nanoantenna performance

SK Earl, DE Gomez, TD James, TJ Davis, A Roberts

2015-01-01

There is great interest in aluminum based plasmonic devices due to the relatively high plasma frequency of this material as well a..

A Chiral Plasmonic Metasurface Circular Polarization Filter

Jasper J Cadusch, Timothy D James, Amir Djalalian-Assl, Timothy J Davis, Ann Roberts

2014-12-01

Here, we demonstrate a proof of principle circular polarization filter based on a far-field interference effect using an array of ..

Filling schemes at submicron scale: Development of submicron sized plasmonic colour filters

Ranjith Rajasekharan, Eugeniu Balaur, Alexander Minovich, Sean Collins, Timothy D James, Amir Djalalian-Assl, Kumaravelu Ganesan, Snjezana Tomljenovic-Hanic, Sasikaran Kandasamy, Efstratios Skafidas, Dragomir N Neshev, Paul Mulvaney, Ann Roberts, Steven Prawer

2014-09-22

The pixel size imposes a fundamental limit on the amount of information that can be displayed or recorded on a sensor. Thus, there..

Coupling of a single-photon emitter in nanodiamond to surface plasmons of a nanochannel-enclosed silver nanowire

Morteza Aramesh, Jiri Cervenka, Ann Roberts, Amir Djalalian-Assl, Ranjith Rajasekharan, Jinghua Fang, Kostya Ostrikov, Steven Prawer

2014-06-30

A finite element method is applied to study the coupling between a nitrogen vacancy (NV) single photon emitter in nanodiamond and ..

Optical investigation of the J-pole and Vee antenna families

Timothy D James, Timothy J Davis, Ann Roberts

2014-01-27

The J-pole and Vee RF antenna design families are investigated for their suitability as optical antennas. The modal and spectral p..

Coupling of a Quantum Emitter to the Surface Plasmons of a Nanowire

M Aramesh, A Djalalian-Assl, J Cervenka, A Roberts, K Ostrikov, S Prawer

2014-01-01

A finite element method is applied to study the coupling of a single photon emitter in nanodiamond to surface plasmons of a silver..

Indium tin oxide film characterization using the classical Hall Effect

LHW van Beveren, E Panchenko, N Anachi, L Hyde, D Smith, TD JAMES, A Roberts, JC McCallum

2014-01-01

We have used the classical Hall Effect to electrically characterize indium tin oxide (ITO) films grown by two different techniques..

Polarisation to colour transformation via nano-antenna enhanced quantum dot emission

TD James, E Panchenk, TL Nguyen, P Mulvaney, TJ Davis, A Roberts

2014-01-01

Metallic nano-antennas have been shown to be an excellent candidate for enhancing and directing optical emission from semiconducto..

Polarization manipulation with subwavelength nanoapertures

Jasper J Cadusch, Timothy D James, Amir Djalalian-Assl, Timothy J Davis, Ann Roberts

2014-01-01

Manipulation of polarization states is an important feature of many applications including in telecommunication, remote sensing an..

Waveguide coupled MSM photodiode for surface plasmon polariton detection

E Panchenko, TD James, A Roberts

2014-01-01

The requirement of in-plane detection is crucial for large scale plasmonic technology. Metal-semiconductor-metal photodiodes can b..

Experimental demonstration of a wave plate utilizing localized plasmonic resonances in nanoapertures

Jasper J Cadusch, Timothy D James, Ann Roberts

2013-11-18

Here we demonstrate the fabrication and characterization of a plasmonic wave plate. The device uses detuned, orthogonal nanometric..

Tunable optical antennas enabled by the phase transition in vanadium dioxide

Stuart K Earl, Timothy D James, Timothy J Davis, Jeffrey C McCallum, Robert E Marvel, Richard F Haglund, Ann Roberts

2013-11-04

Optical antennas, subwavelength metallic structures resonating at visible frequencies, are a relatively new branch of antenna tech..

The Dark Side of Plasmonics

DE Gomez, ZQ Teo, M Altissimo, TJ Davis, S Earl, A Roberts

2013-08-01

Plasmonic dark modes are pure near-field modes that can arise from the plasmon hybridization in a set of interacting nanoparticles..

The plasmonic J-pole antenna

TD James, ZQ Teo, DE Gomez, TJ Davis, A Roberts

2013-01-21

The plasmonic J-pole antenna is the nanoscale version of a radio frequency design, consisting of a half wavelength arm connected t..

Polarization effect and emission control in asymmetric cross-shaped slot antennas surrounded with periodic corrugations

A Djalalian-Assl, J Cadusch, TD James, TJ Davis, A Roberts

2013-01-01

We discuss progress in the development of asymmetric cross-shaped plasmonic antennas based on resonant nanoscale apertures surroun..

Vanadium Dioxide thickness effects on tunable optical antennas

Stuart K Earl, Timothy D James, Robert E Marvel, Daniel E Gomez, Timothy J Davis, Jason G Valentine, Jeffrey C McCallum, Richard F Haglund, Ann Roberts

2013-01-01

Vanadium Dioxide is an optically dense phase change material that has been applied to modulating the resonances of plasmonic struc..

Frequency-dependent optical steering from subwavelength plasmonic structures

A Djalalian-Assl, DE Gomez, A Roberts, TJ Davis

2012-10-15

We show theoretically and with numerical simulations that the direction of the in-plane scattering from a subwavelength optical an..

Surface plasmon hybridization and exciton coupling

Daniel E Gomez, Ann Roberts, Timothy J Davis, Kristy C Vernon

2012-07-09

We derive a semianalytical model to describe the interaction of a single photon emitter and a collection of arbitrarily shaped met..

A Metamaterial Antenna Approach to Near Infra-Red Polarisation State Control

J Cadusch, TD James, TJ Davis, A Roberts

2012-01-01

We report on a plasmonic metamaterial approach to controlling the polarisation state of visible and near infra-red (NIR) light. © ..

Meters to Nanometers; RF Antennas for Optics

TD James, TJ Davis, A Roberts

2012-01-01

Optical antennas have garnered much interest from the optics community for their ability to manipulate light below the diffraction..