الفهرس 
A double image Mach-Zehnder interferometerOnly 14 pages are availabe for public view
 |  | from | 153 |  |  |
| | | from | 153 | | |
Abstract
In this thesis, optical characterization of materials having different dimensions and structural shapes is performed. The thesis is divided into two parts.
Chapter (1) presents a technical modification of the traditional Mach-Zehnder interferometer by inserting two linear polarizers and a wave rotator in the light’s path. The modified interferometer enables simultaneously obtaining two shifts (double image) corresponding to two orthogonal states of vibration of linearly polarized laser; i.e. parallel (extraordinary) and perpendicular (ordinary) with respect to the fibre’s axis
In chapter (2), the modified Mach-Zehnder interferometer is used to investigate anisotropic textile polypropylene fibres at different temperatures (26 oC- 80 oC) using both normal interferometry and digital holographic techniques.
In chapter (3), the lens-fibre interferometer (LFI) is revisited. It is used here to monitor the variations of a transparent sheet thickness. The sheet is inserted in the path of the interfered rays to produce a geometrical shift (and hence a phase shift).
Chapter (4) presents an introduction about nanoparticles, their methods of crystallization and assembly in monolayers.
In chapter (5), polymeric hard-core/soft-shell colloidal nanoparticles are used to prepare Langmuir monolayers at the air/water interface. The monolayer is in-situ (on water surface) characterized using Brewster angle microscopy while the substrate-supported monolayers are characterized using both optical microscopy and atomic force microscopy.