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Browsing Institute Laser by Title

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  • Annealing of some diodes and trimming of carbon resistors using CW Nd 
    Ibrahim, Saad El-Din El-Sadig Mohammed; Supervisor, - Nafie Abdel Latif Supervisor, -co-Abdalla Salih Ali (sudan university of scince and technology, 2007-09-01)
    In this work, the I-V characteristics of the silicon diode were investigated by applying 5W from CW Nd: YAG laser for 10, 20, and 30 seconds, respectively. The results showed that different exposure times changed the ...
  • Calibration and Measurement the Spectral Rang of Laser Goggles 
    Osman, Islam Mohammed; Supervisor, - Ali Abdel Rahman Saeed Marouf (Sudan University of Science & Technology, 2015-12-10)
    Appropriate eye protection is a prerequisite for the safe operation In industrial and laboratory environments. In this thesis some laser goggles in the clinic of the laser institute of Sudan university of Science ...
  • Chaotic Spiking and Multiscroll Attractors in Semiconductor Laser by Optical Feedback 
    Saeed, Nasraldien Adam Eashag; Supervisor, -Kais AbdelsatarAl Naimee; Co-Supervisor, -Abdelmoneim Mohammed Awadelgied (Sudan University of Science and Technology, 2018-01-10)
    In this thesis we present numerical investigation of nonlinear dynamics of a semiconductor laser subjected optical delay feedback. The investigation performed based on numerical simulation of Lang-Kobayashi model over wide ...
  • Characteristics of Lanthanum Titanium Oxide Thin Films Deposited by Pulsed Laser Deposition under Different Annealing Temperatures 
    Baba, Mohamed Ahmed Mahgoub Mohamed Salih; Supervisor, -Abdelmoneim Mohamed Awadelgied (Sudan University of Science & Technology, 2020-10-15)
    In this work, the influence of annealing temperature and the variation of the thermal stability during the deposition were investigated. Pulsed laser deposition system was capable of manufacturing two groups of La2Ti2O7 ...
  • Characterization of Gum Arabic Using Laser Induced Breakdown Spectroscopy LIBS 
    Yousif, Mashair Ahmed Mohammed; Supervisor,-Nafie Abd Allattief Almuslet (Sudan University of Science and Technology, 2017-02-02)
    The aim of this work was to characterize the Gums Arabic, by using Laser Induced Breakdown Spectroscopy (LIBS) technique. This method gives a clear picture of the components of Gum Arabic and does not change the nature of ...
  • Characterization of Polymethyl Methacrylate and Silicon Photovoltaic Cells after Processing by Laser Direct Writing Technique 
    Marouf, Ali Abdel Rahman Saeed; Supervisor, -Kais Abdelsatar Alnaimee (Sudan University of Science and Technology, 2015-01-05)
    This study covers two case studies of optimizing surface modification in polymethyl methacrylate to be used as diffraction grating as well as improving efficiency in Silicon photovoltaic cell. The first aim of this work ...
  • Characterization of Synthesized PMMA-Kaolinite Nanocomposite using infrared Spectroscopy and Laser Raman Spectroscopy 
    Rashed,Mohammed Margani; Supervisor,-Nafie Abd Allattief Almuslet; Supervisor,-Kasim Alhity (Sudan univresity of scince and technology, 2010-10-01)
    Nanocomposite material which contains inorganic nanolayer clay and organic polymer has attracted considerable attention in recent years. Particularly, intercalation of organic polymer into inorganic layered host iii lattice ...
  • Cleaning Rust of Iron using Pulsed CO2 Laser 
    Abd Elwahab, Ahmed Abd Elwahab Ahmed (Sudan University of Science and Technology, 2017-05-05)
    As general laser properties it’s unique, are used in a wide variety of applications in all walks of life. The common problem to metal industrial is rust. The rust is a layer coated surfaces of metallic object which decreases ...
  • Clinical and Laboratory Study of a Photodynamic therapy and Flash Lamp Pulsed Dye Laser for Chronic Plaque Psoriasis 
    Osman,Abdelmoniem Elwidaa; Supervisor,-Osman Mohamed Ahmed Taha; CO-Supervisor,-Nafie Abd Allattief Almusle (sudan university of scince and technology, 2010-12-01)
    Psoriasis is a chronic disease characterized by inflammation and keratinoncytes proliferation. It affects 1-3% of population and the incidence is equal in males and females. In the year 2008, 685 patients were found to ...
  • Clinical Evaluation of the Use of Er-YAG Laser in Different Hard and Soft Oral Tissues Treatment 
    Al-Faron, Mahdi Ali Sukker; Supervisor, - Nadia Ahmed Yahia; Co - Supervisor, - Nafie A. Al-Muslet (sudan university of scince and technology, 2009-06-01)
    The recent laser technology is one of the major lines to resolve the clinical dental clinical problems. The problems in two main sections were divided, the hard tissue and the soft tissues problems. Er-YAG laser isonly ...
  • Clinical Evaluation of Using Low Level Laser and Incoherent Light Source in the Treatment of Vitiligo 
    Malati, Nagi Zarif; Supervisor,-Nafie Abd Allattief Almuslet; Co-Supervisor,- Shaza Mohammed Yousif (Sudan University of Science & Technology, 2015-06-09)
    Vitiligo is an acquired pigmentary disorder of the skin and mucous membranes that is characterized by circumscribed, depigmented macules and patches. Low-Level Laser Therapy (LLLT) is the use of low power visible and ...
  • CO2 Laser Micromachining of Acrylic Sheets to Increase Their Thermal Insulation 
    Beteik, Mohammadi Hassan Mohammadi; Supervisor,-Nafie Abd Allattief Almuslet (Sudan University of Science & Technology, 2015-08-03)
    In this work, electro-pneumatically operated x-y table was fully designed, installed, tested and operated in order to micro-machine coloured acrylic sheets to increase thermal insulation. The x-y table had been designed ...
  • Coherence and Stochastic Resonances in Chaotic Semiconductor Lasers 
    Mohammed, Ibrahim Hamad Gabier; Supervisor, - Kais AbdElsatar Alnaimee; Co - Supervisor, -Abdelmoneim Mohammed Awadelgied (Sudan University of Science & Technology, 2016-02-21)
    In the last three decades a plethora of works has been devoted to study both stochastic coherence (SC) and stochastic resonances (SR) phenomena in chaotic dynamical systems. In this work we experimentally investigated ...
  • Comparative Study of Emulsion Qualities of Sudanese Gums Using Laser Light Scattering 
    Satti, Amira Abd El-Aziz El hassan; Supervisor, - Elfatih Ahmed Hassan; Co - Supervisor, - Nafie Abd Al-Lattief (Sudan University of Science and Technology, 2004-12-01)
    This study proposed and tested a simple, yet highly effective, and fairly accurate laser light scattering system for evaluation of emulsion’s functionality of emulsifying agents and their blends. The laser light scattering ...
  • Comparison of the Effect of Different Lasers Wavelengths and Powers on Teeth Bleaching 
    Mohamed, Setana Abd alhi; Supervisor, -Ali Abdel Rahman Saeed Marouf (Sudan University of Science and Technology, 2017-12-03)
    Lasers have been long introduced in dentistry. Today lasers are been used for Endodontic, Periodontal, Oral Surgery as well as restorative procedures. Here, the effect of different wavelengths on teeth bleaching and in ...
  • COMPARITIVE STUDY BETWEEN LOW LEVEL LASER THERABY AND CHLORHEXIDINE ON TREATMENT OF GINGIVITIES 
    Saqer, Buthaina Amin; Supervisor, - Nadia Ahmed Yahia Co - Supervisor, - Mahdi A.Suker (sudan university of scince and technology, 2006-01-05)
    The high level laser therapy (HLLT) treatment in dentistry have been assured as a very successful method, but the low level laser therapy (LLLT) is still limited and under researches. In this study a compare ...
  • Computational Simulation of Laser Cooling and Trapping of Radium Atoms 
    Elhaj, Iman Noreldin Sirair; Supervisor, -Nafie A. Almuslet (Sudan University of Science and Technology, 2018-08-12)
    This research aimed to study a model of laser cooling and trapping of radium atoms and developing a system of governing equations in similar way to the well-known four-levels Maxwell Bloch system, and to present computational ...
  • Design and construction of a controlled Laser Switch 
    Abass, Mohammed Margani Rashed; Supervisor, - Mubarak Almahal Ahmed (sudan university of scince and technology, 2005-02-04)
    ‫A laser control system was designed and constructed in this work. Diode laser with wavelength 670nm and output power 1mW was used to operate the 555 timer and JK flip-flop for a different time intervals. The time high ...
  • Design & Construction of Laser Guiding System 
    Saeed,Nasreldeen Adam Easshag; Supervisor, - Abdelmoneim M. Awadelgied (sudan univesity of scince and technology, 2011-03-17)
    We have studied Laser orientation system which is an important instrument for many applications as laser range finder, laser tracking and laser pollution detection. And also we describe how to design and construct laser ...
  • Design & Implementation of Optical Fiber Liquid Level Sensor Using He-Ne Laser 
    Elmahi, Sulafa Omer Elghorashi; Supervisor, - Abdelmoneim M. Awadelgied Co - Supervisor, - Mohmmed H. Abuuznien (sudan university of scince and technology, 2007-09-01)
    One of the difficult duties in chemical industrial units is the determination of the level of liquid for real – time monitoring. Determination of this parameter is useful in process control loop. Hence present study is ...

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