Broadband negative refraction in stacked fishnet metamaterial - Physics > OpticsReport as inadecuate




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Abstract: We demonstrate a scheme to utilize the stacked fishnet metamaterial forall-angle negative refraction and subwavelength imaging within a wide frequencyrange starting from zero frequency. The theoretical predictions are verified bythe finite-difference-in-time-domain FDTD numerical simulations. Thephenomena come from the negative evanescent coupling between the adjacent slabwaveguides through the breathing air holes perforated on metal layers.



Author: Zeyong Wei, Yang Cao, Jin Han, Chao Wu, Yuancheng Fan, Hongqiang Li

Source: https://arxiv.org/







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