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physics.optics2021★ 1 cited
Measures of Helicity and Chirality of Optical Vortex Beams
Kayn A. Forbes, Garth A. Jones
Analytical forms of the optical helicity and optical chirality of monochromatic Laguerre-Gaussian optical vortex beams are derived up to second order in the paraxial parameter $kw_…
physics.optics2021
Optical vortex dichroism in chiral particles
Kayn A. Forbes, Garth A. Jones
Circular dichroism is the differential rate of absorption of right- and left-handed circularly polarized light by chiral particles. Optical vortices which convey orbital angular mo…
physics.optics2020
Relevance of Longitudinal Fields of Paraxial Optical Vortices
Kayn A. Forbes, Dale Green, Garth A. Jones
Longitudinal electromagnetic fields generally become comparable with the usually dominant transverse components in strongly-focussed, non-paraxial beams. For optical vortex modes i…