The focusing properties of spin wave with Fresnel lens phase profile
Source abstract
Abstract
Abstract The manipulation of spin waves has been essential for the application of spin waves. In this article, we report a Fresnel lens for focusing the magnetostatic surface spin waves on a ferromagnetic film and verify its propagation characteristics by micromagnetic simulation. By coding the phase profile of Fresnel lens on the excitation source, a clear focusing point of the spin waves is observed according to simulation results. Additionally, the focal length can be tuned effectively with external magnetic fields. This work can extend the application scenario of spin waves.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic properties of thin films · Magneto-Optical Properties and Applications · Random lasers and scattering media
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Magnonic crystal wave guide with large spin-wave propagation velocity in CoFeB10.1063/1.4809757 ↗
2. Realization of a spin-wave multiplexer Nat
3. Spatial and spatiotemporal self-focusing of spin waves in garnet films observed by space-and time-resolved Brillouin light scattering10.1063/1.373257 ↗
4. Real-time observation of snell’s law for spin waves in thin ferromagnetic films10.7567/APEX.7.053001 ↗
5. Design and construction of a spin-wave lens10.1038/srep33169 ↗
6. Micromagnetic simulation of spin wave propagation in a ferromagnetic film with different thicknesses10.3379/msjmag.1506R004 ↗
7. Reconfigurable heat-induced spin wave lenses10.1063/1.4971829 ↗
8. Spin-wave based realization of optical computing primitives10.1063/1.4868921 ↗
9. A Luneburg lens for spin waves10.1063/1.5049470 ↗
10. Nonreciprocity of backward volume spin wave beams excited by the curved focusing transducer10.1063/1.5050347 ↗
11. Fast micromagnetic simulations on GPU—recent advances made with mumax310.1088/1361-6463/aaab1c ↗
12. The design and verification of MuMax310.1063/1.4899186 ↗
13. Absorbing boundary layers for spin wave micromagnetics10.1016/j.jmmm.2017.06.057 ↗
14. Micromagnetic method of s-parameter characterization of magnonic devices10.1063/1.3562519 ↗
15. Dvornik · 2013 · 101
16. Single-shot Fresnel incoherent digital holography based on geometric phase lens
17. A 47.14-$\mu\text W $200-MHz MOS/MTJ-hybrid nonvolatile microcontroller unit embedding STT-MRAM and FPGA for IoT applications10.1109/JSSC.2019.2930910 ↗
18. Magnon focusing in thin ferromagnetic films10.1103/PhysRevB.74.214401 ↗
19. Nonlinear emission of spin-wave caustics from an edge mode of a microstructured Co2 Mn0.6 Fe0.4 Si waveguide10.1103/PhysRevLett.110.067201 ↗
20. The switching of strong spin wave beams in patterned garnet films10.1038/s41598-017-06531-2 ↗
21. Spin wave collimation using a flat metasurface10.1039/C8NR10484K ↗
22. Flat optics with designer metasurfaces10.1038/nmat3839 ↗