Increased absorption of transverse-magnetic (TM)-polarised light by a graphene-oxide (GO) coated polymer waveguide has been observed in the presence of transverse-electric (TE)-polarised light. The GO-coated waveguide exhibits very strong photo-absorption of TE-polarised light--and acts as a TM-pass waveguide polariser. The absorbed TE-polarised light causes a significant temperature increase i...

We present a polarising optical microscopy study of the low-temperature anticlinic-like tilted mesophase of the liquid-crystal compound octylphenyl-2-chloro-4-(p-cyano-benzoyloxy) (DB8Cl). This mesophase has been described as a bilayer smectic structure in which the molecules within each layer are organised in an anticlinic way. The optical textures observed in samples with planar orientation s...

A novel experimental technique for the realisation of optical Faraday effect using Laguerre- Gaussian (LG) light is described. The experiment employs a zero-order vortex half-wave retarder to generate radially or azimuthally-polarised LG doughnut beam. emerging from then passes through linear polariser, which gives rise two intensity lobes, with orientation gap between lobes pointing parallel (...

A wideband, metal-only, and low-cost transmission-type polariser is proposed in which a plane wave with linear polarization impinging on the structure converted to circular other side vice versa. The quad-layer frequency selective surface that its unit cell composed of two sets multi-slot elements placed perpendicular each achieve wideband polariser. In this cell, by changing length slots, ampl...

A four-polarisation camera was used to map the absorbance of olivine micro-grains before and after high-temperature annealing (HTA). It is shown that HTA xenoliths at above 1200 °C in O2 flow makes them magnetised. Different modes operation polariscope with polarisation control sample transmission reflection were used. The type assembled for non-transparent samples HTA. optical observation plac...

The fluorescence probe 1,6, diphenyl-1,3,5-hexatriene was used to determine the micro-viscosity of third trimester amniotic fluid samples utilising an Aminco Bowman spectrofluorometer fitted with a polariser prism. The results were related to the lecithin sphingomyelin (L:S) ratio. A fluorescence polarisation value of 0.360 corresponded to an L:S ratio of 2.0 in uncomplicated and diabetic preg...

The connection between quantum optical nonclassicality and the violation of Bell’s inequalities is explored. Bell type Ž . inequalities for the electromagnetic field are formulated for general states arbitrary number or photons, pure or mixed of quantised radiation and their violation is connected to other nonclassical properties of the field. Classical states are shown to obey these inequaliti...