Zun Huang

Optical imaging with photonic hyper-crystals: Veselago lens and beyond

We present an optical imaging system based on the recently introduced concept of photonic hyper-crystal, an artificial optical medium combining the properties of hyperbolic materials and photonic crystals. The proposed device functions as a Veselago lens with a nearly constant negative refractive index and substantially reduced image aberrations. The planar nature of this lens offers significant applications in nano-photolithography and hot-spots diagnosis in silicon-based semiconductor devices.

Veselago lens by photonic hyper-crystals

Based on the recent concept of the photonic hyper-crystal—an artificial optical medium that combines the properties of hyperbolic materials and photonic crystals, we present the imaging system functioning as a Veselago lens. This planar lens shows a nearly constant negative refractive index with substantially reduced image aberrations, and can find potential applications in photolithography and hot-spots detection of silicon-based integrated circuits.

Optical phase retrieval using conical refraction in structured media

We propose a method of optical phase retrieval based on the conical refraction imaging in structured media. We show that a multilayered dielectric photonic crystal functioning as a conically refractive flat lens can be used to reconstruct phase information of complex optical signals. Our method enables a single simultaneous measurement of multiple images on the same image plane and allows a rapid stable recovery of the optical phase. The planar geometry of the proposed device is compatible with current nano-fabrication techniques and, therefore, can find broad applications in optical signal processing and imaging.

Optical imaging with photonic hypercrystals

We present an optical imaging system based on photonic hypercrystal, an artificial optical medium combining the properties of hyperbolic materials and photonic crystals. This system functions as a negative refraction lens with substantially reduced image aberrations.

Zeroth-order transmission resonance in hyperbolic metamaterials

We describe a novel resonance in planar hyperbolic metamaterials. In conventional Fabry-Perot mode numbering, the resonance corresponds to 0-th order, and can be observed in planar hyperbolic media with arbitrary small thickness.

A Novel Transmission Resonance in Farby-Perot Resonator with Hyperbolic Metamaterials

We describe a novel zero-th order transmission resonance in a Fabry-Perot resonator with planar hyperbolic metamaterials. This resonance combines sub-wavelength light confinement with strong radiative coupling.