Spin-torque-induced dynamics at fine-split frequencies in nano-oscillators with two stacked vortices
The gyrotropic rotation around the equilibrium position constitutes the fundamental excitation of magnetic vortices in nanostructures. The frequency of this mode varies with material and sample ...
Recent advances in femtosecond optical vortices (FOVs)—characterized by helical wavefronts and high peak power—have enabled breakthroughs in attosecond vortex generation and 3D chiral microfabrication ...
a, thin disk vortex oscillator which generated vortex beam. b, Mach-Zender interferometer which is used to detect the helical phase characteristics. Credit must be given to the creator.
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