Masters Dissertations : Laser: Recent submissions

Now showing items 61-68 of 68

Fabrication of CaO & Fe2O3 Disks to Attenuate and Filtrate Some Visible and Infrared Wavelengths

Basheir, Sara Abu-Obieda Yousif; Supervisor, - Nafie Abd Al-Latief Al-Musle (sudan university of scince and technology, 2009-05-01)

In this work some optical attenuators and filters for some wavelengths in the visible and infrared regions of the electromagnetic spectrum were designed and fabricated. The selected materials in this work were Calcium ...
Measurement & evaluation of some optical properties of some materials in near IR region

Mohammed,Nazek Abd Allah; Supervisor, - Wafa Salih A/Rahman (Sudan univresity of scince and technology, 2009-06-01)

In this work transmitted intensity through some material was measured using laser wavelengths (940 & 810) nm in the near infrared region then the absorption coefficients of these materials were determined and evaluated. The ...
Investigation of elements in different samples of gasoline using laser induced breakdown spectroscopy (LIBS)

Salih,Ahmed Mohamed; Supervisor,-Nafie Abd Allattief Almuslet (sudan university of scince and technology, 2010-12-01)

The objective of this research was the utilization of laser induced breakdown spectroscopy (LIBS) technique in investigation of elements in three different kinds of gasoline. Q-switched-Nd: YAG Laser with 10 (ns) pulse ...
Laser chaos generation, modulation and synchronization by electro-optical feedback in communication systems

Baban,Sora Fahmi Abdalah; Supervisor,-Nafie Abd Allattief Almuslet (Sudan univresity of scince and technology, 2010-03-01)

Chaotic dynamics are at the center of multiple studies to perfect encrypted communication systems. Indeed, the particular time evolution nature of chaotic signals constitutes the fundamentals of their application to ...
Study of Photosensitization Process for Phenoxazone 9 Dye Using Coherent and Incoherent Light Sources

Taher,Nazik Mohamed Hassan; Supervisor,-Nafie Abd Allattief Almuslet (sudan university of scince and technology, 2011-03-01)

The aim of this research was the study of Phenoxazone 9 dye photosensitization; By using coherent and non coherent light sources; The emission spectroscopy was used to investigate the production of singlet oxygen, which ...
Utilization of Diode Lasers (675nm and 820nm) in Enhancing Hardness of Chemical Cure Composite for Dental Filling

Nasraldeen,Nasraldeen Mohamed ali; Supervisor,-Nafie Abd Allattief Almuslet (sudan univesity of scince and technology, 2011-04-01)

The objective of this research was the utilization of diode lasers to enhance the hardness of chemical cure composite dental restorative material. Three samples were prepared, the first one was irradiated with 675 nm ...
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 ...
Photobleaching of anthocyanins using tunable dye laser

Ahmed,Wafa Omer; Supervisor, - Ahmed Hassan S. Elkheir (sudan university of scince and technology, 2008-08-01)

The flowers of Hibiscus sabdarifa were extracted with acidified methanol. The Anthocyanin of Hibiscus sabdarifa was obtained as red needles from absolute ethanol. A dye laser operating at 520 nm was used to bleach the ...

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