Surface And Interface Phonon Polaritons Characteristics In InAIGaN Quaternary Alloys

• Main Author: Aljameel, , Abdulaziz Ibraheem A
• Format: Thesis
• Language: English
• Published: 2016
• Subjects: QC1 Physics (General)
• Online Access: http://eprints.usm.my/31656/1/ALJAMEEL%2C_ABDULAZIZ_IBRAHEEM_A_24.pdf; http://eprints.usm.my/31656/

Dalam projek ini sifat-sifat optik dua set filem nitrida kuaternari telah dikaji secara eksperimen dan teori. Set pertama ialah nitrida kuaternari InxAlyGa1-x-yN dengan aluminum (Al) malar, y=0.06 dan pecahan mol indium (In) yang berubah dalam julat 0  x  0.10, sementara set kedua dengan In malar, x=0.10, dan komposisi Al yang berubah dalam julat 0  y  0.20. Dalam kajian ini pelbagai peralatan pencirian tak sentuhan dan tak memusnahkan telah digunakan. Ini merangkumi spektroskopi pantulan inframerah (IR) terkutub dan pantulan penuh dilemahkan IR terkutub (ATR) bagi pencirian optik. Dalam kategori pertama projek ini, ciri spektra pantulan inframerah (IR) terkutub dan ciri optik InxAlyGa1-x-yN telah dikaji. In this project the optical properties of two sets of quaternary nitride films have been investigated experimentally and theoretically. The first set is the quaternary nitride InxAlyGa1-x-yN with constant aluminum (Al), y=0.06 and varied indium (In) mole fraction ranging from 0 ≤ x ≤ 0.10, while the second set is with constant In, x = 0.10, and variable Al composition ranging from 0 ≤ y ≤ 0.20. In this study various non-contact and non-destructive characterization tools were used. These include polarized infrared (IR) reflectance and polarized IR attenuated total reflection (ATR) spectroscopy for optical characterization. In the first category of this work the features of the polarized IR reflectance spectra and the optical characteristics of InxAlyGa1-x-yN were investigated.