الفهرس 
1.1 IntroductionOnly 14 pages are availabe for public view
 |  | from | 129 |  |  |
| | | from | 129 | | |
Abstract
Abstract
Glasses have been widely developed due to their diverse and
interesting optical properties, making them particularly interesting materials
for optical and micro-optical elements, such as gratings, optical recording
media, fiber optics and waveguided devices in integrated optics since they
exhibit a good transparency in the infrared region, especially at the
telecommunication Wavelengths at 1.30 and 1.55 μ m.
The purpose of this thesis is to provide some insight into the structural,
thermal analysis and optical properties of (Se90Te10)95X5, (X= In, Sb, Zn and
S) are set by melt-quench procedure. The incorporated elements were
selected as examples from basic metal, semimetal, Transition metal and
nonmetal groups, respectively. Films of these glasses were evaporated onto
glass substrates under vacuum of 10-5 Torr.
Chapter 1: gives an introduction of the current work and literature review
of the former work
Chapter 2: provides some sample preparation details, vacuum evaporation
techniques, characterization of samples, such as structural, thermal analysis
and optical properties
Chapter 3: gives the theoretical approaches to the present work.
Chapter 4: presents physical behavior of the prepared (Se90Te10)95X5, (X=
S, Zn, In, Bi and Sb) bulk system and then their structure investigations and
thermal properties.
Chapter 5: gives the optical properties of the thin films of (Se90Te10)95X5,
(X= S, Zn, In, Bi and Sb)
Chapter 6: presents the abstract and conclusion of the present work.
➢ In the present work X-ray diffraction (XRD) patterns of the as-deposited
(Se90Te10)95X5, (X= S, Zn, In, Bi and Sb) bulk samples confirmed their