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Researchers from Korea Advanced Institute of Science and Technology (KAIST), with domestic and international collaborators, demonstrated direct near-field optical imaging of acoustic graphene plasmon (AGP) fields, using a sensitive scattering-type scanning near-field optical microscope (s-SNOM) to directly measure the optical fields of the AGP waves propagating in a nanometer-thin waveguide. The method enabled the scientists to visualize thousandfold compression of mid-infrared light.
The strategy, they said, paves the way for potential breakthroughs in the practical application of acoustic graphene plasmon platforms for next-generation, high-performance, graphene-based optoelectronic devices with enhanced light-matter interactions…READ MORE