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Browsing by Subject "Diffractive optical element"

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Generation of high order modes

Author: Ngcobo, Sandile ; Ait-Ameur, K ; Forbes, A Date: Jul 2012 This work deals with the generation of symmetrical high order Laguerre Gaussian modes. These high order Laguerre-Gaussian beams are generated by forcing the laser using an annular binary Diffractive Optical Element whose geometry is in ... Read more
High Efficient LGp0 End Pumped Nd:YAG Laser

Author: Ngcobo, Sandile ; Forbes, A ; Ait-Ameur, K Date: Jul 2012 The transformation of a single mode TEM00 Gaussian beam by forcing the laser to operate into a symmetrical single mode higher order TEMp0 Laguerre Gaussian beam intensity distribution is very useful in improving and substantially increasing ... Read more
Intra-cavity generation of high order LGpl modes

Author: Ngcobo, Sandile ; Ait-Ameur, K ; Forbes, A Date: Aug 2012 This work deals with the generation of symmetrical high order Laguerre Gaussian modes. These high order Laguerre-Gaussian beams are generated by forcing the laser using an annular binary Diffractive Optical Element whose geometry is in ... Read more
Superresolution beams

Author: Ngcobo, Sandile ; Ait-Ameur, K ; Forbes, A Date: Nov 2011 The transformation of a Gaussian beam (GB) into a symmetrical higher order TEMp0 Laguerre Gaussian beam (LGB) intensity distribution of which is further rectified and transformed into a Gaussian intensity distribution in the plane of a ... Read more
Wavelength-independent laser beam shaping

Author: Degama, MP ; Forbes, A Date: Jul 2010 This paper presents a beam shaping device namely, a Diffractive Optical Element (DOE), which is used to change a beam having a Gaussian intensity profile into a beam with a uniform intensity profile. The DOE used in this work was fabricated ... Read more

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Browsing by Subject "Diffractive optical element"

Browsing by Subject "Diffractive optical element"

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