Topic
Optical polarization
About: Optical polarization is a research topic. Over the lifetime, 13992 publications have been published within this topic receiving 244284 citations.
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TL;DR: The results show that the asymmetric focal spot associated with the focus of linearly polarized light can be explained through geometrical effects.
Abstract: We show that the depolarization caused when light is focused with a high-numerical-perture lens is accompanied by a space-variant geometrical phase. This phase results in the formation of modes with helicities and phase singularities that differ from those of the original beam. We show that this effect can be explained as a transverse shift of the rays, which is reminiscent of the recently discovered optical Hall-Magnus effect. Our results show that the asymmetric focal spot associated with the focus of linearly polarized light can be explained through geometrical effects.
63 citations
TL;DR: Polarization analysis in triangulation-based laser scanning is used to disambiguate the true laser stripe from spurious inter-reflections caused by holes and concavities on metal surfaces.
63 citations
TL;DR: In this paper, a collection of experiments used to characterize both the linear and second-order optical responses of the arrays of low-symmetry L-shaped gold nanoparticles is discussed.
Abstract: We summarize our work on polarization effects in arrays of low-symmetry L-shaped gold nanoparticles. A collection of experiments used to characterize both the linear and second-order optical responses of the arrays is discussed. The responses of the arrays are found to be exceptionally sensitive to polarization. This sensitivity is determined to arise from structural properties including particle size, shape, spacing, and orientation. Nonlinear polarization measurements are shown to yield unexpected and very interesting information concerning the symmetry of the nanoparticle arrays. The combined linear and nonlinear results confirm that the smallest details of arrays influence optical responses.
63 citations
TL;DR: In this article, the impact of polarization dependent gain (PDG) and polarization dependent loss (PDL) in long-haul optical amplifier systems is studied by means of a power analysis accounting for PDG, PDL and polarization mode dispersion (PMD) in the saturation regime of the EDFs.
Abstract: The impact of polarization dependent gain (PDG) and polarization dependent loss (PDL) in long-haul optical amplifier systems is studied by means of a power analysis accounting for PDG, PDL and polarization mode dispersion (PMD) in the saturation regime of the erbium-doped fiber amplifiers (EDFAs). System penalties are characterized in terms of mean values and standard deviations. Mean penalties on the bit-error-ratio (BER) are directly related to PDG. BER fluctuations are found to be greatly enhanced when PDG and PDL are combined. The impact of PMD is dependent on the values for PDG and PDL. >
63 citations
TL;DR: A novel low-loss electro-optic Ti–LiNbO3 TE–TM mode converter is demonstrated and is made immune from the optical damage and Li2O outdiffusion problems typically associated with LiNb O3 devices by the use of a z-propagation waveguide.
Abstract: A novel low-loss electro-optic Ti–LiNbO3 TE–TM mode converter is demonstrated. The polarization conversion is not wavelength selective. Extremely high conversion efficiency with an extinction ratio of more than 33 dB has been achieved with 7-V drive. The device is made immune from the optical damage and Li2O outdiffusion problems typically associated with LiNbO3 devices by the use of a z-propagation waveguide.
63 citations