Persistent Link:
http://hdl.handle.net/10150/298761
Title:
Characterization of magneto-optical and phase-change media
Author:
Xun, Xiaodong
Issue Date:
2001
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
This dissertation contains studies on several aspects of the media and system in the optical storage. The main subjects that have been examined are magneto-optical (MO) media, phase-change (PC) media and the optical system used for testing and characterizing these media. In the studies of MO media, we examined the thermomagnetic properties of the TbFeCo film and observed the dynamic behavior of its magnetization reversal. We introduced a novel technique to estimate the thermal coefficients, i.e., thermal conductivity and specific heat of each layer in the MO multilayer stack. In the investigation of PC media, we focused on studying the properties of the light scattered from the bare substrates and the disks coated with the PC media. Relationship between the scattering properties and disk noise spectral density has been found by comparing the results from the scattering measurements and noise measurements. Also, we introduce a novel method to study the crystallization process of PC media, by means of heating up a sample with periodic mark array recorded on it. Shining a laser beam on the mark array and monitoring the signal from one of the 1st orders diffracted beam, we can examine the process of the crystallization and tell the difference between growth-dominated and nucleation-dominated PC media. In the investigation of the system, we designed and implemented a scatterometer which is used to measure the scattered light from the sample.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Engineering, Electronics and Electrical.; Physics, Optics.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Graduate College; Optical Sciences
Degree Grantor:
University of Arizona
Advisor:
Mansuripur, Masud

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleCharacterization of magneto-optical and phase-change mediaen_US
dc.creatorXun, Xiaodongen_US
dc.contributor.authorXun, Xiaodongen_US
dc.date.issued2001en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThis dissertation contains studies on several aspects of the media and system in the optical storage. The main subjects that have been examined are magneto-optical (MO) media, phase-change (PC) media and the optical system used for testing and characterizing these media. In the studies of MO media, we examined the thermomagnetic properties of the TbFeCo film and observed the dynamic behavior of its magnetization reversal. We introduced a novel technique to estimate the thermal coefficients, i.e., thermal conductivity and specific heat of each layer in the MO multilayer stack. In the investigation of PC media, we focused on studying the properties of the light scattered from the bare substrates and the disks coated with the PC media. Relationship between the scattering properties and disk noise spectral density has been found by comparing the results from the scattering measurements and noise measurements. Also, we introduce a novel method to study the crystallization process of PC media, by means of heating up a sample with periodic mark array recorded on it. Shining a laser beam on the mark array and monitoring the signal from one of the 1st orders diffracted beam, we can examine the process of the crystallization and tell the difference between growth-dominated and nucleation-dominated PC media. In the investigation of the system, we designed and implemented a scatterometer which is used to measure the scattered light from the sample.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectEngineering, Electronics and Electrical.en_US
dc.subjectPhysics, Optics.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineOptical Sciencesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorMansuripur, Masuden_US
dc.identifier.proquest3031396en_US
dc.identifier.bibrecord.b4228739xen_US
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.