Browsing Research Publications/Outputs by Subject "Zernike polynomials"

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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
Characterisation of a spinning pipe gas lens using a Shack–Hartmann wavefront sensor

Author: Mafusire, C ; Forbes, A ; Snedden, Glen C ; Michaelis, MM Date: 2007 A heated horizontal spinning pipe causes gases inside it to assume dynamics resulting in a graded index lens – a spinning pipe gas lens (SPGL). A CFD model is presented which shows that gas exchanges of the SPGL with the surroundings resulting ... Read more
Modelling and optimization of a deformable mirror for laser beam control

Author: Loveday, Philip W ; Long, Craig S ; Forbes, A ; Land, K Date: Mar 2008 An intra-cavity adaptive mirror is required to compensate for time-dependent phase aberrations to the laser beam, such as those caused by thermal lensing. A piezoelectric unimorph design can provide a small, low-cost deformable mirror for ... Read more

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Browsing Research Publications/Outputs by Subject "Zernike polynomials"

Browsing Research Publications/Outputs by Subject "Zernike polynomials"

Browse

All of ResearchSpace

This Community

Quick Links

Legislation and compliance

General Enquiries

Social Connect