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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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152 papers · 1 filter
Beam shifts and eigenpolarisations for the reflection of vortex beams from homogeneous magnetic surfaces
Mairi Gilmour, Sarah Croke, Jörg B. Götte
Probing surfaces with optical beams is a powerful technique utilised for material characterisation, and more recently, measuring surface magnetisation with vortex beams has opened…
Thermal Noise Reduction in Ternary Optical Coatings: From Ti::GeO-Based Ternary Systems to High Index Materials
Vincenzo Pierro, Guerino Avallone, Jessica Steinlechner +11
Minimizing coating thermal noise is crucial for enhancing gravitational wave detector sensitivity, with a target Amplitude Spectral Density Reduction Factor (ASD RF) of relat…
Geometric representation of higher-order optical modes
Claire Cisowski
An octant representation of higher-order optical modes that includes Laguerre-Gaussian and Hermite-Gaussian modes is presented. The octant picture captures the high-dimensional nat…
Resonate-and-Fire Photonic-Electronic Spiking Neurons for Fast and Efficient Light-Enabled Neuromorphic Processing Systems
Andrew Adair, Dafydd Owen-Newns, Giovanni Donati +7
Neuromorphic computing seeks to replicate the spiking dynamics of biological neurons for brain-inspired computation. While electronic implementations of artificial spiking neurons…
Model-free estimation of the Cramér-Rao bound for deep-learning microscopy in complex media
Ilya Starshynov, Maximilian Weimar, Lukas M. Rachbauer +4
Artificial neural networks have become important tools to harness the complexity of disordered or random photonic systems. Recent applications include the recovery of information f…
Extraction of Bend-Resolved Modal Basis in Deformed Multimode Fiber
Lubomir Skvarenina, Stephen Simpson, Yashar Alizadeh +1
Mode mixing in optical fibers caused by mechanical bending induces perturbations that distort the spatial field profile of coherent beams as they propagate through few-mode or mult…
Ultrafast and compact photonic-electronic leaky integrate-and-fire circuits based upon resonant tunnelling diodes
Joshua Robertson, Dylan Black, Giovanni Donati +8
This work provides a first report of ultrafast and compact photonic-electronic neuromorphic temporal leaky integrate-and-fire neuronal circuits built with Resonant Tunnelling Diode…
Knife-Edge Diffraction of Scalar and Vector Vortex Light
Richard Aguiar Maduro, Amanda Kronhardt Fritsch, Sonja Franke-Arnold
Various methods have been introduced to measure the orbital angular momentum (OAM) of light, from fork holograms to Dove prism interferometers, from tilted lenses to triangular ape…
Passive silicon nitride integrated photonics for spatial intensity and phase sensing of visible light
Christoph Stockinger, Jörg S. Eismann, Natale Pruiti +2
Phase is an intrinsic property of light, and thus a crucial parameter across numerous applications in modern optics. Various methods exist for measuring the phase of light, each pr…
Quantised helicity in optical media
Neel Mackinnon, Jörg B. Götte, Stephen M. Barnett +1
We present a new approach to the definition of optical helicity in a medium. Our approach resolves the problem that duality transformations which simultaneously combine $\mathbf{E}…
Single-frame transmission and phase imaging using off-axis holography with undetected photons
Emma Pearce, Osian Wolley, Simon P. Mekhail +6
Imaging with undetected photons relies upon nonlinear interferometry to extract the spatial image from an infrared probe beam and reveal it in the interference pattern of an easier…
Theory of paraxial optical Skyrmions
Z. Ye, S. M. Barnett, S. Franke-Arnold +4
Vector light beams, characterised by a spatially varying polarisation, can exhibit localised structures reminiscent of the Skyrmions familiar from the study of magnetic media. We p…
Minireview on Disordered Optical Metasurfaces
P. Lalanne, A. Dmitriev, C. Rockstuhl +2
The use of coherent wave phenomena to enhance device performance is a cornerstone of modern optics. In juxtaposition to (locally) periodic metasurfaces, their disordered counterpar…
Tuning Dipolar and Multipolar Resonances of Chiral Silicon Nanostructures for Control of Near field Superchirality
Dominic J. P. Koyroytsaltis-McQuire, Rahul Kumar, Tamas Javorfi +3
Chiral materials display a property called optical activity, which is the capability to interact differentially with left and right circularly polarised light. This leads to the ab…
Attomole enantiomeric discrimination of small molecules using an achiral SERS reporter and chiral plasmonics
Shailendra K Chaubeya, Rahul Kumar, Paula Laborda +6
Biologically important molecules span a size range from very large biomacromolecules, such as proteins to small metabolite molecules. Consequently, spectroscopic techniques which c…
Towards nanophotonic optical isolation via inverse design of energy transfer in non-reciprocal media
Claire M. Cisowski, Madeline C. Waller, Robert Bennett
In this work we generalise the adjoint method of inverse design to nonreciprocal media. As a test case, we use three-dimensional topology optimization via the level-set method to o…
High-power sub-picosecond filamentation at 1.03 μm with high repetition rates between 10 and 100 kHz
Robin Löscher, Victor Moreno, Dionysis Adamou +5
Filamentation has extensively been explored and is well understood at repetition rates <1 kHz due to the typical availability of multi-mJ laser systems at a moderate average power.…
Photon-efficient optical tweezers via wavefront shaping
Unė G. Būtaitė, Christina Sharp, Michael Horodynski +5
Optical tweezers enable non-contact trapping of micro-scale objects using light. Despite their widespread use, it is currently not known how tightly it is possible to three-dimensi…
Optically-triggered deterministic spiking regimes in nanostructure resonant tunnelling diode-photodetectors
Qusay Raghib Ali Al-Taai, Matěj Hejda, Weikang Zhang +4
This work reports a nanostructure resonant tunnelling diode-photodetector (RTD-PD) device and demonstrates its operation as a controllable, optically-triggered excitable spike gene…
On lines of constant polarisation in structured light beams
Stephen M. Barnett, Fiona C. Speirits, Joerg B. Goette
We show that Skyrmion field lines, constructed from the local Stokes parameters, trace out lines of constant optical polarisation.
Symmetry control of strong chiral light matter interactions in photonic nanocavities for efficient circularly polarised emission
Rahul Kumar, Ben Trodden, Anastasiia Klimash +6
Chiral excited electronic states of molecules have an intrinsic sense of handedness, or twist, and are the active component in energy efficient display technologies and in new phot…
A Monolithic Graphene-Functionalized Microlaser for Multispecies Gas Detection
Yanhong Guo, Zhaoyu Li, Ning An +10
Optical microcavity enhanced light-matter interaction offers a powerful tool to develop fast and precise sensing techniques, spurring applications in the detection of biochemical t…
Understanding the limits of remote focusing
Sharika Mohanan, Alexander D. Corbett
It has previously been demonstrated in both simulation and experiment that well aligned remote focusing microscopes exhibit residual spherical aberration outside the focal plane. I…
Roadmap on structured waves
K. Y. Bliokh, E. Karimi, M. J. Padgett +47
Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave.…