All Outputs (14)

Ultra-compact and ultra-broadband hybrid plasmonic-photonic vertical coupler with high coupling efficiency, directivity, and polarisation extinction ratio (2022)
Journal Article

An ultra-compact, ultra-broadband vertical coupler for dense photonic integrated circuits is reported with a 1.07×0.62μm2 wavelength-scale footprint. This hybrid plasmonic-photonic coupler uses a unique two-plane plasmonic nanoantenna array on a sili... Read More about Ultra-compact and ultra-broadband hybrid plasmonic-photonic vertical coupler with high coupling efficiency, directivity, and polarisation extinction ratio.

Hybrid photonic-plasmonic platform for high-throughput single-molecule studies (2019)
Journal Article

We present the design and numerical characterization of a hybrid photonic-plasmonic nanoresonator comprised of a 2D photonic crystal (PhC) cavity, a gold bowtie nanoantenna (BNA) and a silicon dioxide, SiO2, spacer. This device is designed to serve a... Read More about Hybrid photonic-plasmonic platform for high-throughput single-molecule studies.

Engineering of hybrid photonic-plasmonic devices for enhanced light-matter interactions (2017)
Book Chapter

In this chapter, we focus on the design and characteristics of a hybrid photonic-plasmonic nanoresonator using 3D finite-difference time-domain simulations. This structure is capable of localization of high intensity light in a subwavelength hotspot,... Read More about Engineering of hybrid photonic-plasmonic devices for enhanced light-matter interactions.

High-brightness laser diodes with external feedback (2017)
Book Chapter

Wave mixing effects in semiconductor optical amplifiers (2017)
Book Chapter

Investigating the use of a hybrid plasmonic-photonic nanoresonator for optical trapping using finite-difference time-domain method (2016)
Journal Article

We investigate the use of a hybrid nanoresonator comprising a photonic crystal (PhC) cavity coupled to a plasmonic bowtie nanoantenna (BNA) for the optical trapping of nanoparticles in water. Using finite-difference time-domain simulations, we show t... Read More about Investigating the use of a hybrid plasmonic-photonic nanoresonator for optical trapping using finite-difference time-domain method.

High-power operation of coherently coupled tapered laser diodes in an external cavity (2016)
Journal Article

We demonstrate a rear-side phase-locking architecture with two high-brightness diode lasers. This technique is based on the passive phase-locking of emitters in an external cavity on their rear facet, and their coherent combination on the front facet... Read More about High-power operation of coherently coupled tapered laser diodes in an external cavity.

Self-consistent simulation of high-brightness diode lasers with external optical feedback (2015)
Conference Proceeding

© 2015 IEEE. This paper presents a model for simulating the impact of external optical feedback on large-optical cavity high-brightness diode lasers. The simulations are performed with our 2.5D simulation tool for high-brightness laser diodes. The ex... Read More about Self-consistent simulation of high-brightness diode lasers with external optical feedback.

Separate phase-locking and coherent combining of two laser diodes in a Michelson cavity (2015)
Conference Proceeding

We describe a new coherent beam combining architecture based on passive phase-locking of two laser diodes in a Michelson external cavity on their rear facet, and their coherent combination on the front facet. As a proof-of-principle, two ridge lasers... Read More about Separate phase-locking and coherent combining of two laser diodes in a Michelson cavity.

Design Optimisation of High-Brightness Laser Diodes for External Cavity Operation in the BRIDLE Project (2014)
Conference Proceeding

We report on the design aspects of high performance diode lasers for application in high-brightness spectral beam combining and coherent beam combining modules. Key performance trade-offs are identified and potential solutions are explored.

Design and simulation of high-speed nanophotonic electro-optic modulators (2014)
Conference Proceeding

In this work, an ultracompact electro-optic modulator based on refractive index modulation by plasma dispersion effect in PhC all-optical gate (AOG) is proposed. The index modulation is achieved by applying a time-varying bias voltage across the elec... Read More about Design and simulation of high-speed nanophotonic electro-optic modulators.

Modelling the dynamics of a micro-cavity switch (2014)
Journal Article

Factors influencing brightness and beam quality of conventional and distributed Bragg reflector tapered laser diodes in absence of self-heating (2014)
Journal Article

In this study, the authors examine some of the factors affecting the brightness and the beam quality of high-power tapered lasers. The large volume resonators required to achieve a high-power, high-brightness operation make the beam quality sensitive... Read More about Factors influencing brightness and beam quality of conventional and distributed Bragg reflector tapered laser diodes in absence of self-heating.

TEM assessment of As-doped GaN epitaxial layers grown on sapphire (2004)
Book Chapter

TEM investigations of As-doped GaN layers grown by plasma-assisted molecular beam epitaxy on sapphire substrates reveal the presence of extensive regions of cubic stacking disorder within the hexagonal GaN matrix. Electron energy loss spectroscopy su... Read More about TEM assessment of As-doped GaN epitaxial layers grown on sapphire.