Scattering Cross-section Analysis of Nanoparticles

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

The study of the scattering cross section, known as the Radar Cross Section (RCS), is highly desirable for military applications as lower values of RCS makes the target aircraft undetectable by conventional radar systems. Stealth aircrafts are specifically designed to deny the signals sent by a threat radar by means of complex shapes and Radar Absorbing Materials (RAMs). Exact and approximate RCS prediction methods are based on Maxwell's equation of electromagnetism. The study of nanoparticle scattering helps in understanding the different coating and nanostructures that can contribute to the stealth capabilities of a target. For this purpose, several simulations are observed to study the scattering behavior of different nano spheric particles based on Finite Difference Time Domain (FDTD) method in LUMERICAL software. FDTD offers the efficient capabilities to simulate absorption and scattering spectra from a metallic nanoparticle under time-varying incident electromagnetic field exposure and is simple to implement. The simulations are done for a glass, gold and aluminum nanospheres on different substrates and particle sizes. The scattering is compared for far field and near field projections of each simulation. Conclusions illustrates that when combining metamaterials to dielectric substrates, the amount of reflected energy is minimum. Hence, in our knowledge, Aluminum and Gold nanospheres on top of silicon dioxide substrate are a better candidate for the application of stealth where low scattering characteristics are desired, due to their lowest electric field intensities compared to other materials.

روابط وملفات

التعريف والنوع

رقم الوثيقة

f05be224-c1bb-4f87-8cbd-6603338dd2e0

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

2282919_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Jaime Viegas","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Maitha Albuainain","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Mihai Sanduleanu","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Scattering Cross-section Analysis of Nanoparticles

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

RCS,Stealth, Scattering, Extinction, Absorption

إشراف وإعداد

الإشراف

Jaime Viegas, Mihai Sanduleanu

الإعداد

Maitha Albuainain

الاقتباسات الببليوغرافية