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Laser physics and technology

 

News

CSIR Research Space is constantly being developed and populated. Please report any errors to Siphethile Muswelanto. Constructive criticism and suggestions would be welcome.

Recent Submissions

  • Tamsaout, T; Kheloufi, K; Amara, EH; Arthur, Nana KK; Pityana, Sisa L (Southern African Institute of Industrial Engineering, 2017-11)
    A theoretical approach based on a numerical simulation using experimental data is proposed as a contribution to the study of laser-based additive manufacturing by direct energy deposition (DED). The aim is to simulate the ...
  • Jacobs, Cobus; Koen, Wayne S (SAIP, 2016-07)
    We present a single-element plane-wave laser rate equation model and its implementation as a graphical laser simulation library using Matlab Simulink. Simulink’s graphical interface and vector capabilities provide a unique ...
  • Mabena, Chemist M; Roux, FS (American Physical Society, 2017-11)
    A method is proposed to characterize a high-dimensional quantum channel with the aid of classical light. It uses a single nonseparable input optical field that contains correlations between spatial modes and wavelength to ...
  • Sephton, Bereneice; Dudley, Angela L; Forbes, A (ASSAf, 2017-12)
    Bereneice Sephton, Angela Dudley and Andrew Forbes explain the importance of random motion. So, what exactly is random motion? The answer can be dated back to 1827 when a botanist, Robert Brown, noted the movement of pollen ...
  • Tlotleng, Monnamme; Pityana, Sisa L (Rapid Product Development Association of South Africa (RAPDASA), 2017-11)
    Titanium aluminides (TiAl) are interesting intermetallic materials to study due to their enhanced high temperature and light weight properties. They are necessary as structural materials, but brittle to form with conventional ...
  • Sono, Tleyane J; Riziotis, CR; Maili, S; Eason, WE (IOP Publishing Ltd, 2017-08)
    Fabrication capabilities of high optical quality hexagonal superstructures by chemical etching of inverted ferroelectric domains in lithium niobate platform suggests a route for efficient implementation of compact hexagonal ...
  • Sephton, Bereneice C; Dudley, Angela L (SPIE, 2017-08)
    Beams carrying orbital angular momentum (OAM) are ubiquitous in many experiments carried out today and cover a wide range of research, from surface microstructure processing to optical tweezers and communications. It follows ...
  • Sephton, Bereneice C; Dudley, Angela L; Forbes, A (SPIE, 2017-08)
    In the avid search for means to increase computational power in comparison to that which is currently available, quantum walks (QWs) have become a promising option with derived quantum algorithms providing an associated ...
  • Thobakgale, Setumo L; Manoto, Sello L; Ombinda-Lemboumba, Saturnin; Maaza, M; Mthunzi-Kufa, Patience (SPIE, 2017-01)
    Embryonic stem cells have great promise in regenerative medicine because of their ability to self-renew and differentiate into various cell types. Delivery of therapeutic genes into cells has already been achieved using ...
  • Thobakgale, Setumo L; Manoto, Sello L; Ombinda-Lemboumba, Saturnin; Maaza, M; Mthunzi-Kufa, Patience (SPIE, 2017-02)
    Cellular manipulation by delivery of molecules into cells has been applied extensively in tissue engineering research for medical applications. The different molecular delivery techniques used range from viral and chemical ...
  • Thobakgale, Lebogang (SPIE Photonics West 2017 Conference, 2017-01)
    This presentation is about the photo-transfection of mouse embryonic stem cells with plasmid DNA using femtosecond laser pulses. It outlines the background on embryonic stem cells (ES) and phototransfection.
  • Mvelase, GM; Gräbe, PJ; Anochie-Boateng, Joseph K (Elsevier, 2017-06)
    The heavy haul coal line of the South African railway network is facing a problem where ballast particles are becoming rounded, negatively affecting performance and thus leading to shorter planned maintenance cycles. This ...
  • Thobakgale, Lebogang (2017-01)
    This presentation is about the photo-transfection of mouse embryonic stem cells with plasmid DNA using femtosecond laser pulses. It outlines the background on embryonic stem cells (ES) and phototransfection.
  • Sephton, Bereneice C; Dudley, Angela L; Forbes, A (Optical Society of America, 2016-10)
    Light beams that carry orbital angular momentum are often approximated by modulating an initial beam, usually Gaussian, with an azimuthal phase variation to create a vortex beam. Such vortex beams are well defined azimuthally, ...
  • Vetter, C; Dudley, Angela L; Szameit, A; Forbes, A (Optical Society of America (OSA), 2017-08)
    Accelerating waves have received significant attention of late, first in the optical domain and later in the form of electron matter waves, and have found numerous applications in non-linear optics, material processing, ...
  • Uhrich, P; Castrignano, S; Uys, Hermann; Kastner, M (American Physical Society, 2017-08)
    The measurement of dynamic correlation functions of quantum systems is complicated by measurement backaction. To facilitate such measurements we introduce a protocol, based on weak ancilla-system couplings, that is applicable ...
  • Bassa, H; Konrad, T; Diósi, L; Uys, Hermann (Elsevier, 2017-08)
    We study the convergence properties of state estimates of an oscillating qubit being monitored by a sequence of discrete, unsharp measurements. Our method derives a differential equation determining the evolution of the ...
  • Maphanga, Charles P; Ombinda-Lemboumba, Saturnin; Manoto, Sello L; Maaza, Malik; Mthunzi-Kufa, Patience (SPIE, 2017-01)
    Human immunodeficiency virus (HIV-1) infection still remains one amongst the world’s most challenging infections since its discovery. Antiretroviral therapy is the recommended treatment of choice for HIV-1 infection taken ...
  • Lugongolo, Masixole Y; Manoto, Sello L; Ombinda-Lemboumba, Saturnin; Maaza, M; Mthunzi-Kufa, Patience (Wiley, 2017-01)
    Human immunodeficiency virus (HIV-1) infection remains a major health problem despite the use of highly active antiretroviral therapy (HAART), which has greatly reduced mortality rates. Due to the unavailability of an ...
  • Maphanga, Charles P; Malabi, Rudzani; Ombinda-Lemboumba, Saturnin; Maaza, M; Mthunzi-Kufa, Patience (SPIE, 2017-02)
    The delivery of genetic material and drugs into mammalian cells using femtosecond (fs) laser pulses is escalating rapidly. This novel light based technique achieved through a precise focusing of a laser beam on the plasma ...

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