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Fabricating Metamaterials Using the Fiber Drawing Method

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Removing image artefacts in wire array metamaterials.

Md Samiul Habib, Alessandro Tuniz, Korbinian J Kaltenecker

|August 10, 2016

Summary

This summary is machine-generated.

Researchers developed new methods to correct image distortions in hyperlenses and hyperbolic media endoscopes. These techniques improve subwavelength imaging by removing artifacts caused by ordinary waves and slab modes.

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Area of Science:

Optics and Photonics
Nanotechnology
Materials Science

Background:

Hyperlenses and hyperbolic media endoscopes enable subwavelength imaging beyond the diffraction limit.
Image quality is often degraded by artifacts from resonant slab modes and diffracting ordinary waves.

Purpose of the Study:

To introduce and demonstrate methods for correcting imaging artifacts in hyperlenses and hyperbolic media endoscopes.
To enable broad-band subwavelength imaging with improved fidelity.

Main Methods:

Convolution, field averaging, and power averaging techniques were developed to remove artifacts.
A spatial Fourier space projection was defined to filter out ordinary waves.

Main Results:

Numerical simulations demonstrated the effectiveness of the proposed methods in reducing image distortion.
The methods successfully removed unwanted artifacts over wide frequency bands.

Conclusions:

The developed artifact correction methods significantly enhance the performance of hyperlenses and hyperbolic media endoscopes.
These techniques are crucial for realizing practical broad-band subwavelength imaging devices.