Wavelength Scale All-Optical Magnetization Control in Ferromagnetic Films
2025 Conference on Lasers and Electro-Optics (CLEO)(2025)
Department of Electrical and Computer Engineering
摘要
We report the first demonstration of tightly focused femtosecond (fs) circularly polarized Bessel-Gauss beams for wavelength-scale magnetization switching in Pt/Co films. When compared to traditional Gaussian beams, these beams show better focusing and energy efficiency. © 2024 The Author(s)
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关键词
Ferromagnetic Films,Circularly Polarized,Magnetization Switching,Bessel Beam,Magnetic Field,Laser Pulse,Optical Pulse,Optical Switching,Ferromagnetic Materials,Stokes Parameters,Left Circularly Polarized