ResearchSpace
→
Browsing by Subject

Browsing by Subject "SLM"

Now showing items 1-13 of 13

Assessment of homegarden agroforestry for sustainable land management intervention in a degraded landscape in South Africa

Author: Musvoto, Constansia D ; Kgaphola, Motsoko J ; Mwenge Kahinda, Jean-Marc Date: Dec 2021 Agroforestry-based sustainable land management (SLM) interventions provide opportunities for tackling land degradation and its associated socio-economic issues. Agroforestry is not a guaranteed SLM fix as every agroforestry practice is not ... Read more
Conceptual design framework for setting up aluminum alloy powder production system for Selective Laser Melting (SLM) process

Author: Matsagopane, G ; Olakanmi, EO ; Botes, Annelize ; Kutua, S Date: May 2019 Documentation on the correct process and component requirements for setting up efficient aluminum powder production systems capable of manufacturing powder that meets the requirements for the selective laser melting (SLM) process is not ... Read more
Effect of heat treatment on microstructure, hardness and tensile properties of high-speed selective laser melted Ti6Al4V

Author: Lekoadi, Paul M ; Tlotleng, Monnamme ; Annan, K ; Maledi, N ; Masina, Bathusile N Date: Nov 2022 This study presents the investigation of the influence of heat treatment on microstructure, hardness and tensile properties of high-speed selective laser melted Ti6Al4V components. Heat treatment was performed to obtain an improved microstructure ... Read more
The effect of laser surface re-melting on the surface roughness and micro-hardness of selective laser melting (SLM) fabricated Ti-6Al-4V samples

Author: Molatlhegi, G ; Hoosain, Shaik ; Popoola, API ; Malatji, N ; Pityana, Sisa L Date: Oct 2021 Ti-6Al-4V is favourable due to its exquisite properties for example, low modulus, light weight, excellent strength, and corrosion resistance. Despite the excellent properties of the material, the fabrication process of titanium components is ... Read more
Effect of powder bed preheating on distortion and mechanical properties in high speed selective laser melting

Author: Motibane, Londiwe P ; Tshabalala, Lerato C ; Mathe, Ntombizodwa R ; Hoosain, Shaik E ; Knutsen, RD Date: Oct 2019 Selective Laser Melting (SLM) is known to cause residual stresses due to the inherent large thermal gradients from high heating and cooling rates during manufacturing. The residual stresses tend to induce distortion, delamination of parts ... Read more
The effect of spatial light modulator (SLM) dependent dispersion on spatial beam shaping

Author: Spangenberg, D-M ; Dudley, Angela L ; Neethling, P ; Forbes, A ; Rohwer, E Date: Aug 2013 SLMs used for spatial modulation of lasers are often used in conjunction with very narrow bandwidth laser light where diffractive dispersion could be approximated as a constant. It is known that diffractive dispersion is inversely proportional ... Read more
Encoding mutually unbiased bases in orbital angular momentum for quantum key distribution

Author: Dudley, Angela L ; Mafu, M ; Goyal, S ; Giovannini, D ; McLaren, M ; Konrad, T ; Padgett, MJ ; Petruccione, F ; Lutkenhaus, N ; Forbes, A Date: Jul 2013 We encode mutually unbiased bases (MUBs) using the higher-dimensional orbital angular momentum (OAM) degree of freedom associated with optical fields. We illustrate how these states are encoded with the use of a spatial light modulator (SLM). ... Read more
An experimental investigation of selective laser process parameters on aluminium alloy (AlSi12)

Author: Nzengue, AGB ; Mpofu, K ; Mathe, Ntombizodwa R ; Daniyan, I ; Muvunzi, Ra Date: Jul 2023 The chase for sustainable manufacturing that contributes to addressing climate change is of research interest across scientists and industrial sectors. The lightweight and high strength properties of aluminium alloys foster sustainable cost, ... Read more
From stationary annular rings to rotating Bessel beams

Author: Dudley, Angela L ; Forbes, A Date: Apr 2012 In this work we use a phase-only spatial light modulator (SLM) to mimic a ring-slit aperture, containing multiple azimuthally varying phases at different radial positions. The optical Fourier transform of such an aperture is currently known ... Read more
Intra-cavity vortex beam generation

Author: Naidoo, Darryl ; Aït-Ameur, K ; Forbes, A Date: Aug 2011 In this paper the authors explore vortex beams and in particular the generation of single LG0l modes and superpositions thereof. Vortex beams carry orbital angular momentum (OAM) and this intrinsic property makes them prevalent in transferring ... Read more
Manipulating structured light

Author: Dudley, Angela L Date: Jul 2016 This presentation focuses on the manipulation of structured light. Structured light manipulation allows people to dynamical change the spatial profile of an optical field. Read more
Mode analysis with a spatial light modulator as a correlation filter

Author: Flamm, D ; Naidoo, Darryl ; Schulze, C ; Forbes, A ; Duparré, M Date: Jul 2012 A procedure for the real-time analysis of laser modes using a phase-only spatial light modulator is outlined. The procedure involves encoding into digital holograms by complex amplitude modulation a set of orthonormal basis functions into ... Read more
Superpositions of light fields carrying orbital angular momentum

Author: Dudley, Angela L Date: Jan 2012 The work presented in this thesis is centred on the generation of superimposed optical fields which each carry orbital angular momentum (OAM) and the development of OAM measurement techniques. Optical fields which carry OAM have found ... Read more

Now showing items 1-13 of 13

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Tel: + 27 12 841 2911
Email: callcentre@csir.co.za

Physical Address
Meiring Naudé Road
Brummeria
Pretoria
South Africa

Postal Address
PO Box 395
Pretoria 0001
South Africa

Social Connect

Resources on this site are free to download and reuse according to associated licensing provision. Please read the terms and conditions of usage of each resource.

Browsing by Subject "SLM"

Browsing by Subject "SLM"

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Social Connect