For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the need for artificially manufactured metamaterials. Scientists have long ...
The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...
Metamaterial-based backward wave oscillators (BWOs) represent a significant advancement in the generation of coherent microwave radiation. These devices exploit engineered metamaterials—materials ...
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