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Browsing by Author "Mashaba, Nikiwe P"

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Analysing real-world turbulence at low cost

Author: Mashaba, Nikiwe P ; Griffith, DJ Date: Nov 2020 Absorption, scattering and refractive index fluctuations are three primary phenomena contributing to optical turbulence. Temperature fluctuations, humidity and air velocity cause variations on both temporal and spatial, in the refractive ... Read more
Characterizing optical filters for wildfire detectors

Author: Mashaba, Nikiwe P ; Griffith, DJ Date: Nov 2020 Near infrared detectors have gained popularity, mainly in the military, because of their capability of detecting wildfires. The Council for Scientific and Industrial Research (CSIR) focuses on the development and deployment of wildfire detectors ... Read more
Comparing optical turbulence using a pair of sonic anemometers

Author: Mashaba, Nikiwe P ; Griffith, DJ Date: Nov 2020 Turbulence is regarded as one of the most deleterious effects on imaging systems. The CSIR have an optical test facility, used to test image quality of surveillance systems, however, the temporal distribution of the near field turbulence is ... Read more
Structured light in turbulence

Author: Cox, MA ; Mphuthi, N ; Nape, I ; Mashaba, Nikiwe P ; Cheng, L ; Forbes, A Date: Sep 2020 Optical communication is an integral part of the modern economy, having all but replaced electronic communication systems. Future growth in bandwidth appears to be on the horizon using structured light, encoding information into the spatial ... Read more
Vector-mode decay in atmospheric turbulence: An analysis inspired by quantum mechanics

Author: Nape, I ; Mashaba, Nikiwe P ; Mphuthi, N ; Jayakumar, S ; Bhattacharya, S ; Forbes, Andrew Date: Mar 2021 Vector beams are inhomogeneously polarized optical fields with nonseparable, quantum-like correlations between their polarization and spatial components, and hold tremendous promise for classical and quantum communication across various ... Read more

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Browsing by Author "Mashaba, Nikiwe P"

Browsing by Author "Mashaba, Nikiwe P"

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