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تحضير، تشخيص، والخواص البصرية اللاخطية لبعض المتراكبات النانوية لاشباه الموصلات / بولي ميثيل ميثاكريلات لاجهزة المفتاح النانوفوتوني == Preparation, Characterization, and Nonlinear Optical Properties of Some N anostructured Semiconductor/PMMA N anocomposites for All­ N anophotonic Switching Devices

Author name: هديل نجم عبد جاسم
Supervisor name: هيثم لفته سعدون | سعيد جبار عباس
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Doctorate
University: University Of Basrah - College Of Science
Language: English
University location: Basrah
Key words:
  • بصريات لاخطية

دراسة نظرية لمميزات المفاتيح البصرية في المزدوجات الاتجاهية المصنعة من مادة Ti : LiNbO3 == theoretical Investigations of the Switching Characteristics in Optical Directional Couplers Based on ti:LiNbO3

Author name: صباح مهدي محمد امين
Supervisor name: Jassim M. Abdul-Jabbar
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Doctorate
University: University Of Basrah - College Of Science
Language: English
University location: Basrah
Key words:
  • المعالجة البصرية

تصميم وتركيب منظومة ليزر نتروجين ودراسة خواصها الضوئية والكهربائية

Author name: علي حسين رشك
Supervisor name: حميد عبد الواحد احمد العطار
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: University Of Basrah - College Of Science
Language: Arabic
University location: Basrah
First pages:

الامن البصري باستخدام مصادقة العد الفوتوني لمتعدد العوامل المشفر == Optical Security Using Photon- Counting Multifactor Encryption and Authentication

Author name: عماد عبد الزهرة محمد
Supervisor name: Haitham L. Saadon | Hassan H. Mohammed
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: University Of Basrah - College Of Science
Language: English
University location: Basrah
First pages:

تاثير م عاملات الاضطراب الجوي على حسابات منظوما ت المدى الليزرية == Effect of Atmospheric Turbulence parameters on Laser Range systems calculations

Author name: صادق عطية راشد
Supervisor name: حسن حمادي محمد
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: University Of Basrah - College Of Science
Language: Arabic
University location: Basrah
First pages:
Abstract: In this thesis, an equation of atmospheric turbulence factor were derived the effect of such factor of the laser beam path of Er - Glass laser of ( 1.54m)wavelength. The results were copared at distances and propagation modes of laser beam in the atmosphere. Analysis system was used to determining the effect of atmospheric turbulent parameters, which are : laser beam radius at transmitter Wo, turbulent factor turb τ and intensity correction at target surface Pshape . And received power at photo detector for laser range finder LRF, additional study of effect the variation of refractive index strcture paramete 2 n c , inner - scale turbulence l , and the aperture dimension of photo receiver rec. r on the values and shape of receiving power, according the signal to noise ratio SNR equation , maximum range of the LRF in different weather conditions and compared with the results of the international literatures. New equation of Gaussian beam for calculation the efficiency of LRF system performance in the turbulent medium. Analytical comparsion for power and range calculations from the concluded equation of the Gaussian beam which take into consideration the effect of the turbulent attenuation in the range calculation, A special equation for power shift in the different two cases, which are in the present and absent of turbulence.A partical addition to this study, the weather elements are measured in to the Basrah city atmosphere locally with the maximum range Rmax for the LRF in the two different season summer and winter.An equation of receiving rangeof laser target designator system LTD using Lambert function is estimated and compared its results with concluded equation of recent researches. MATLAB - 7 sorces code program were written to declare the effect of turbulent parameters on ranging and disgnation calculations, also describe the effect of the laser beam power variation in range calculations. The ideas and results of this study are used to design an LRF and LTD in different weather conditions and alternative weather turbulent variance.