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Propagation characteristics of Airy beams: dependence upon spatial coherence and wavelength
We generate a broadband "white light" Airy beam and characterize the dependence of the beam properties on wavelength. Experimental results are presented showing that the beam's deflection coefficient and...
PublicationsExperimental and theoretical determination of optical binding forces
We present an experimental and theoretical study of long distance optical binding effects acting upon micro-particles placed in a standing wave optical field. In particular we present for the first time...
PublicationsOptical path clearing and enhanced transmission through colloidal suspensions
We utilize advanced laser fields to clear a path through a dynamic turbid medium, a concept termed "Optical path clearing (OPC)." Particles are evacuated from a volume of the medium using the gradient...
PublicationsShaping the light transmission through a multimode optical fibre: complex transformation analysis and applications in biophotonics
We present a powerful approach towards full understanding of laser light propagation through multimode optical fibres and control of the light at the fibre output. Transmission of light within a multimode...
PublicationsNumerical investigation of passive optical sorting of plasmon nanoparticles
We explore the passive optical sorting of plasmon nanoparticles and investigate the optimal wavelength and optimal beam shape of incident field. The condition for optimal wavelength is found by maximising...
PublicationsGPU accelerated toolbox for real-time beam-shaping in multimode fibres
We present a GPU accelerated toolbox for shaping the light propagation through multimode fibre using a spatial light modulator (SLM). The light is modulated before being coupled to the proximal end of...
PublicationsHigh-speed spatial control of the intensity, phase and polarisation of vector beams using a digital micro-mirror device
The dynamic spatial control of light fields is essential to a range of applications, from microscopy to optical micro-manipulation and communications. Here we describe the use of a single digital micro-mirror...
PublicationsCompact multimode fiber beam-shaping system based on GPU accelerated digital holography
Real-time, on-demand, beam shaping at the end of the multimode fiber has recently been made possible by exploiting the computational power of rapidly evolving graphics processing unit (GPU) technology...
PublicationsOptical sorting and detection of submicrometer objects in a motional standing wave
An extended interference pattern close to the surface may result in either a transmissive or an evanescent surface field for large-area manipulation of trapped particles. The affinity of differing particle...
PublicationsLong-range one-dimensional longitudinal optical binding
We create extended longitudinally optically bound chains of microparticles with the use of counter-propagating "nondiffracting'' light fields, the so-called Bessel beams. The beam homogeneity and extended...
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