Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini

Optical bistability (OB) is the phenomenon resulted from the interaction of the light source with the third order nonlinear material. OB is believed to have promising applications as basic elements for future optical computers and optical switches. In the recent years, obtaining the OB via wave mixi...

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Main Author:	Ahmad Khushaini, Muhammad Asif
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Optical instruments and apparatus
Online Access:	https://ir.uitm.edu.my/id/eprint/100732/1/100732.pdf
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id	my-uitm-ir.100732
record_format	uketd_dc
spelling	my-uitm-ir.1007322024-12-09T08:14:36Z Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini 2017 Ahmad Khushaini, Muhammad Asif Optical instruments and apparatus Optical bistability (OB) is the phenomenon resulted from the interaction of the light source with the third order nonlinear material. OB is believed to have promising applications as basic elements for future optical computers and optical switches. In the recent years, obtaining the OB via wave mixing process attracted significant interest due to the influences of wave interaction that occurring inside the material may enhance the OB characteristic. This study investigates the OB resulting from a degenerate two-wave mixing (TWM) process in a single layer of Kerr nonlinear ferroelectric material. The nonlinear process is mathematically described by a nonlinear coupled-wave (CW) equations propagating across the ferroelectric. In the first part, we investigate the influence of the Slowly Varying Envelope Approximation (SVEA) on the evolution of the system. The results obtained in this section are compared with the standard available experimental data. Our results from this part clearly demonstrate that the full mathematical model without SVEA is essential to produce a theoretical result that is matched the experimental data as a evident in this thesis. In the second part of this work, we have examined the effect of Self Action nonlinearity on resulting OB. Self Action nonlinearity usually ignored in studying the OB via TWM. Our results show that the Self Action nonlinearity is important to detect the nonlinear response of the OB for several combinations of input parameters. 2017 Thesis https://ir.uitm.edu.my/id/eprint/100732/ https://ir.uitm.edu.my/id/eprint/100732/1/100732.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Applied Sciences
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Optical instruments and apparatus
spellingShingle	Optical instruments and apparatus Ahmad Khushaini, Muhammad Asif Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini
description	Optical bistability (OB) is the phenomenon resulted from the interaction of the light source with the third order nonlinear material. OB is believed to have promising applications as basic elements for future optical computers and optical switches. In the recent years, obtaining the OB via wave mixing process attracted significant interest due to the influences of wave interaction that occurring inside the material may enhance the OB characteristic. This study investigates the OB resulting from a degenerate two-wave mixing (TWM) process in a single layer of Kerr nonlinear ferroelectric material. The nonlinear process is mathematically described by a nonlinear coupled-wave (CW) equations propagating across the ferroelectric. In the first part, we investigate the influence of the Slowly Varying Envelope Approximation (SVEA) on the evolution of the system. The results obtained in this section are compared with the standard available experimental data. Our results from this part clearly demonstrate that the full mathematical model without SVEA is essential to produce a theoretical result that is matched the experimental data as a evident in this thesis. In the second part of this work, we have examined the effect of Self Action nonlinearity on resulting OB. Self Action nonlinearity usually ignored in studying the OB via TWM. Our results show that the Self Action nonlinearity is important to detect the nonlinear response of the OB for several combinations of input parameters.
format	Thesis
qualification_level	Master's degree
author	Ahmad Khushaini, Muhammad Asif
author_facet	Ahmad Khushaini, Muhammad Asif
author_sort	Ahmad Khushaini, Muhammad Asif
title	Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini
title_short	Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini
title_full	Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini
title_fullStr	Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini
title_full_unstemmed	Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini
title_sort	optical bistability in ferroelectrics via two wave mixing / muhammad asif ahmad khushaini
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Applied Sciences
publishDate	2017
url	https://ir.uitm.edu.my/id/eprint/100732/1/100732.pdf
_version_	1818587990433202176

Optical bistability in ferroelectrics via two wave mixing / Muhammad Asif Ahmad Khushaini

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