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العنوان
Integrated Infrared Light Source /
المؤلف
Labib, Shady Reda Fathy.
هيئة الاعداد
باحث / شادى رضا فتحى لبيب
مشرف / ضياء عبد المجيد خليل
مشرف / ياسر محمد صبرى جاد أبوالمجد
تاريخ النشر
2022.
عدد الصفحات
170 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة الكهربائية والالكترونية
تاريخ الإجازة
1/1/2022
مكان الإجازة
جامعة عين شمس - كلية الهندسة - هندسة الالكترونيات والاتصالات الكهربية
الفهرس
Only 14 pages are availabe for public view

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Abstract

This thesis aims to study and model the thermal and optical effects in integrated infrared micro sources and their design optimization. A model is proposed for the effect of temperature distribution and analytical formulas are derived. The model divides the source into small annular regions of blackbody radiation sources having uniform temperature. The overall emitted power is obtained as the superposition of all annular sources weighted by their corresponding areas. Silicon-based sources comprising integrated micro heaters are fabricated and characterized. The experimental results show good agreement with the model. Given the temperature distribution, obtained using infrared camera, and the emitted power, the model is used to extract the emissivity of black silicon integrated source. Then, a methodology for designing photonic crystal integrated sources is proposed based on optimizing the absorptivity of the source in the wavelength range of interest, and the fact that the emissivity equals the absorptivity at thermal equilibrium (Kirchhoff’s law). Finite Difference Time Domain (FDTD) simulations are performed to support the design and analysis process. One dimensional (1D) and two dimensional (2D) diffraction grating sources are designed, fabricated and characterized for different polarizations. Moreover, plasmonic photonic crystal are designed and novel configurations are proposed for further engineering of the spectral response.