Effect of pulsed optical heating on magnetostatic wave propagation in ferrite film

Author

Dunaev, Sergei N. ; Fetisov, Yuri K.

Author_Institution

Inst. of Radio Eng., Electron. & Autom., Acad. of Sci., Moscow, Russia

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

3488

Lastpage

3490

Abstract

The effective control of magnetostatic spin wave propagation in yttrium-iron-garnet films using illumination of the film with optical pulses has been demonstrated. Heating of the film by 17°C followed by a decrease of the film magnetization of up to 13% was obtained for optical pulses with energy of 0.2 J and duration of 2-5 ms. Variation of the wave frequency by 55 MHz, change of the wave number by tens of percent, and increase of the wave delay time from 60 to 150 ns were observed. These effects may find applications in the development of optically controlled microwave devices

Keywords

ferrites; garnets; magnetic thin films; magnetisation; magnetostatic surface waves; photomagnetic effect; spin waves; yttrium compounds; 2 to 5 ms; 60 to 150 ns; MSSW propagation; YFe5O12; YIG; YIG films; effective control; ferrite film; film magnetization; magnetostatic spin wave propagation; magnetostatic wave propagation; optical pulses; pulsed optical heating; wave delay time; wave frequency; yttrium-iron-garnet films; Heating; Lighting; Magnetization; Magnetostatic waves; Optical control; Optical devices; Optical films; Optical propagation; Optical pulses; Yttrium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.489545

Filename

489545