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Computational fluid dynamics model of the spinning pipe gas lens

Author: Mafusire, C ; Forbes, A ; Snedden, Glen C Date: Aug 2010 When a metal horizontal pipe is heated and spun along its axis, a graded refractive index distribution is generated which is can be used as a lens, thus its name, the spinning pipe gas lens (SPGL). Previous experimental results of its performance ... Read more
Gas lensing in a heated spinning pipe

Author: Mafusire, C ; Forbes, A ; Snedden, Glen C ; Mahlase, Andrew CK ; Michaelis, MM ; Mathuthu, M Date: Jul 2006 When a heated pipe is rotated, the dynamics of the gas inside exhibit properties reminiscent of a solid-state positive lens. The properties are a result of a parabolic distribution of refractive index in the pipe which is caused by mixing of ... Read more
Optical aberrations in a gas lenses

Author: Mafusire, C ; Forbes, A ; Michaelis, MM ; Snedden, Glen C Date: Aug 2010 Gas lenses work on the basis that aerodynamic media can be used to generate a graded refractive index distribution which can be used to focus a laser beam. Examples of these are the spinning pipe gas lens (SPGL) and the flame lens (FL). The ... Read more

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Browsing by Subject "Aberrations"

Browsing by Subject "Aberrations"

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