Enhanced polarisation control and extreme electric fields : advances in terahertz spectroscopy applied to anisotropic materials and magnetic phase transitions / by Connor Devyn William Mosley.

Format:

Book

Author/Creator:

Mosley, Connor Devyn William, author.

Series:

Springer theses 2190-5053

Springer theses : recognizing outstanding Ph.D. research, 2190-5053

Language:

English

Subjects (All):

Terahertz spectroscopy.

Anisotropy.

Materials--Magnetic properties.

Materials.

Phase transformations (Statistical physics).

Genre:

Electronic books.

Physical Description:

1 online resource (xv, 115 pages) : illustrations (chiefly color).

Place of Publication:

Cham, Switzerland : Springer, [2021]

System Details:

text file

Summary:

This thesis reports advances in terahertz time-domain spectroscopy, relating to the development of new techniques and components that enhance the experimentalist's control over the terahertz polarisation state produced by photoconductive emitters. It describes how utilising the dynamic magnetoelectric response at THz frequencies, in the form of electromagnons, can probe material properties at a transition between two magnetically ordered phases. Additionally, preliminary investigations into the properties of materials exposed to extreme terahertz optical electric fields are reported. The work presented in this thesis may have immediate impacts on the study of anisotropic media at THz frequencies, with photoconductive emitters and detectors being the most commonly used components for commercially available terahertz spectroscopy and imaging systems, and by providing a new way to study the nature of magnetic phase transitions in multiferroics. In the longer term the increased understanding of multiferroics yielded by ultrafast spectroscopic methods, including terahertz time-domain spectroscopy, may help develop new magnetoelectric and multiferroic materials for applications such as spintronics.

Contents:

Introduction

Terahertz Time-Domain Spectroscopy

Rotatable-Polarisation Terahertz Time-Domain Spectroscopy of Anisotropic Media

Scalable Interdigitated Photoconductive Emitters for the Electrical Modulation of Terahertz Beams With Arbitrary Linear Polarisation

High-Field Terahertz Time-Domain Spetroscopy of Single-Walled Carbon Nanotubes and CuO

Appendix: Tracking Disorder Broadening and Hysteresis in First-Order Phase Transitions via the Electromagnon Response in Improper Ferroelectrics.

Notes:

Doctoral thesis accepted by University of Warwick, Coventry, England."

Includes bibliographical references.

Online resource; title from PDF title page (SpringerLink, viewed April 16, 2021).

Other Format:

Print version:

ISBN:

9783030669027

3030669025

OCLC:

1243514842

Access Restriction:

Restricted for use by site license.