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Compression gain of...
Compression gain of spin wave signals in a magnonic YIG waveguide with thermal non-uniformity
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Kolokoltsev, O. (författare)
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Gomez-Arista, Ivan (författare)
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Qureshi, N. (författare)
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Acevedo, A. (författare)
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Ordonez-Romero, Cesar L. (författare)
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- Grishin, Alexander (författare)
- KTH
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Journal of Magnetism and Magnetic Materials. - : Elsevier BV. - 0304-8853 .- 1873-4766. ; 377, s. 1-5
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report on the observation of the compression gain of the signals carried by surface spin waves (MSSWs) in yittrium iron garnet films as a result of non-uniform optical heating of the spin wave medium. Efficient gain takes place if a frequency downshift of the spin wave spectrum induced by the heating is compensated by the corresponding non-uniformity of the bias magnetic field. It is proposed that the effect can be understood in part as an interaction between spin waves and a thermally induced potential well in the sample.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- Magnonics
- Pulse compression
- Spin wave
- YIG
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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