# A new artificial material approach for flat THz frequency lenses

Source: [A new artificial material approach for flat THz frequency lenses](<https://www.sota2.com/research/paper/68fa2bdc1e209131ce84aa6f>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:53:15.399Z

Authors: Giorgio Savini, Peter A.R. Ade, Jin Zhang

Published: 2012-12-12T23:07:40.000Z

## Abstract

Stacked layers of metal meshes embedded in a dielectric substrate are routinely used for providing spectral selection at THz frequencies. Recent work has shown that particular geometries allow the refractive index to be tuned to produce practical artificial materials. Here we show that by spatially grading in the plane of the mesh we can manufacture a Graded Index (GrIn) thin flat lens optimized for use at THz frequencies. Measurements on a prototype lens show we are able to obtain the parabolic profile of a Woods type lens which is dependent only on the mesh parameters. This technique could realize other exotic optical devices.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1212.3010>)

[PDF](<https://arxiv.org/pdf/1212.3010.pdf>)