Using the long-established Cardiff metal-mesh filter technology, we have exploited our ability to artificially manipulate the phase of a wavefront across a device in order to produce a dielectric-based Toraldo pupil working at millimeter wavelengths. The use of a Toraldo pupil to push the angular resolution of an optical imaging system beyond the classical diffraction limit is yet to be realized in the millimeter regime, but is an exciting prospect. Here we present the design and measured performance of a prototype Toraldo pupil, based on a 5 annuli design.

Metamaterial-based Toraldo pupils for super-resolution at millimetre wavelengths / Pisano, G.; Shitvov, A.; Tucker, C.; Mugnai, D.; Bolli, P.; Olmi, L.; D'Agostino, F.; Migliozzi, M.; Orfei, A.; Navarrini, A.; Riminesi, C.; Maffei, B.. - 10708:(2018). (Intervento presentato al convegno Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 tenutosi a usa) [10.1117/12.2314086].

Metamaterial-based Toraldo pupils for super-resolution at millimetre wavelengths

Pisano G.;
2018

Abstract

Using the long-established Cardiff metal-mesh filter technology, we have exploited our ability to artificially manipulate the phase of a wavefront across a device in order to produce a dielectric-based Toraldo pupil working at millimeter wavelengths. The use of a Toraldo pupil to push the angular resolution of an optical imaging system beyond the classical diffraction limit is yet to be realized in the millimeter regime, but is an exciting prospect. Here we present the design and measured performance of a prototype Toraldo pupil, based on a 5 annuli design.
2018
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018
millimeter-wave instrumentation; Optics; Radioastronomy; super resolution
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Metamaterial-based Toraldo pupils for super-resolution at millimetre wavelengths / Pisano, G.; Shitvov, A.; Tucker, C.; Mugnai, D.; Bolli, P.; Olmi, L.; D'Agostino, F.; Migliozzi, M.; Orfei, A.; Navarrini, A.; Riminesi, C.; Maffei, B.. - 10708:(2018). (Intervento presentato al convegno Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 tenutosi a usa) [10.1117/12.2314086].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1585644
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