Microwave envelope solitons in YIG film under oblique magnetisation

Author

Subbiah, S. ; Alphones, A.

Author_Institution

Centre for Wireless Commun., Nat. Univ. of Singapore, Singapore

Volume

148

Issue

6

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

423

Lastpage

431

Abstract

A detailed study of die output pulse profiles and envelope soliton characteristics are studied in a YIG film under oblique magnetisation for different input pulse widths, operating frequencies and ferrimagnetic resonance line widths. Dispersion characteristics and nonlinear characteristics of the YIG film are predicted by the first order multiple scale method. The analysis of the soliton in the YIG film is carried out using a split step Fourier method for arbitrary orientation of magnetisation. The conditions for the bright and dark soliton are established using the Lighthill criterion. A switchable bright to dark soliton is theoretically predicted by varying the angle of DC magnetisation. Pulse compression is also estimated for different magnetisation angles

Keywords

ferrimagnetic resonance; garnets; magnetic thin films; magnetisation; magnetostatic waves; microwave materials; pulse compression; solitons; yttrium compounds; DC magnetisation angle; Lighthill criterion; YFe5O12; YIG; YIG film; bright soliton; dark soliton; dispersion characteristics; ferrimagnetic resonance line widths; first order multiple scale method; input pulse widths; magnetostatic waves; microwave envelope solitons; nonlinear characteristics; oblique magnetisation; operating frequencies; output pulse profiles; pulse compression; split step Fourier method;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map20010755

Filename

986947