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February 5, 2026PhotonicsOpen Access

Deep-Subwavelength Negative Refraction of Hyperbolic Plasmon Polariton at Visible Frequencies

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Authors

SQShuxin QiXCXuanbin ChenHLHaoran Lv

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Overview

Demonstration of negative refraction and light confinement in nanophotonics using hyperbolic materials, indicating innovative device potential.

Key Points

  • The aim is to explore negative refraction of hyperbolic plasmon polaritons for practical nanophotonic applications.
  • Demonstration of negative refraction using hyperbolic plasmon polaritons in heterojunctions.
  • Utilization of molybdenum dioxide chloride (MoOCl2) for low-loss light propagation.
  • Adjustment of orientation directions for superlensing effect tuning.
  • Achieved focal spots below 150 nm for near-infrared light.
  • Confirmed spatial confinement of 800 nm wavelengths.
  • Demonstrated steerable focal spots due to mirror-symmetric effects.

Cite This Study

Qi et al. (2026) studied this question.

synapsesocial.com/papers/698435e5f1d9ada3c1fb5350https://doi.org/10.3390/photonics13020146
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