期刊
APPLIED PHYSICS LETTERS
卷 116, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0018519
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资金
- DFG Transregional Collaborative Research Center [(SFB/TRR) 173, 268565370]
We perform micromagnetic simulations to investigate the propagation of spin-wave beams through spin-wave optical elements. Despite spin-wave propagation in magnetic media being strongly anisotropic, we use axicons to excite spin-wave Bessel-Gaussian beams and gradient-index lenses to focus spin waves in analogy to conventional optics with light in isotropic media. Moreover, we demonstrate spin-wave Fourier optics using gradient-index lenses. Our results are valid for all three possible external magnetic field orientations and thus contribute to the growing field of spin-wave optics.
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