Abstract

Waveguide lenses have been formed for the first time in yttrium iron garnet-gadolinium gallium garnet (YIG-GGG) waveguides by using ion milling. Hybrid-type single lenses, lens arrays, and collimation-Fourier-transform lens pairs fabricated have shown good efficiency and near-diffraction-limited focal spot sizes. These waveguide lenses should facilitate realization of magnetostatic wave based integrated magneto-optic device modules for applications in communications and signal processing.

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