Invisibility concentrator based on van der Waals semiconductor α-MoO3

By combining transformation optics and van der Waals layered materials, an invisibility concentrator with a thin layer of alpha-MoO3 wrapping around a cylinder is proposed. It inherits the effects of invisibility and energy concentration at Fabry-Perot resonance frequencies, with tiny scattering. Due to the natural in-plane hyperbolicity in alpha-MoO3, the challenges of experimental complexity and infinite dielectric constant can be resolved perfectly. Through analytical calculation and numerical simulations, the relevant functionalities including invisibility, energy concentration and illusion effect of the designed device are confirmed, which provides guidelines for the subsequent experimental verification in future.

Automated summary

By combining transformation optics and van der Waals layered materials, a proposed invisibility concentrator utilizes a thin layer of alpha-MoO3 to wrap around a cylinder, inheriting invisibility and energy concentration effects. Analytical calculation and numerical simulations confirm the device's functionalities, providing guidelines for future experimental verification.