Microwave seminar | 06 November 2025

The Metamaterial-based Lenslet (MetaL) is a prototype alternative to current antennas used to finely couple the light gathered by a cosmic microwave background instrument. The technology is young. The present work details efforts to help maturing it through a comprehensive optical characterisation and preliminary work to couple it to detectors in cold operations.

Main paper/arXiv, related to the seminar, and other references

A deeper focus on the primordial universe Develoment of a metamaterial-based lenslet coupled with kinetic inductance detectors for cosmology: https://orca.cardiff.ac.uk/id/eprint/165767
Experimental characterization of a planar phase-engineered metamaterial lenslet for millimeter astronomy: 10.1364/AO.480933
Pixel design for FIR/mm/submm astronomy constituted of a set of antenna-coupled superconducting detectors feeding a metamaterial-based lenslet: 10.1117/12.2627848