The quasi-optical modulation of linear polarization at millimeter and sub-millimeter wavelengths can be achieved by using rotating half-wave plates (HWPs) in front of polarization-sensitive detectors. Large operational bandwidths are required when the same device is meant to work simultaneously across different frequency bands. Previous realizations of half-wave plates, ranging from birefringent multi-plates to mesh-based devices, have achieved bandwidths of the order of 100%. Here we present the design and experimental characterization of a reflective HWP able to work across bandwidths of the order of 150%. The working principle of the novel device is completely different from any previous realization, and it is based on the different phase-shift experienced by two orthogonal polarizations reflecting, respectively, off an electric conductor and an artificial magnetic conductor.

Multi-octave metamaterial reflective half-wave plate for millimeter and sub-millimeter wave applications / Pisano, Giampaolo; Maffei, Bruno; Ade, Peter A. R.; DE BERNARDIS, Paolo; De Maagt, Peter; Ellison, Brian; Henry, Manju; Ng, Ming Wah; Schortt, Brian; Tucker, Carole. - In: APPLIED OPTICS. - ISSN 1559-128X. - STAMPA. - 55:36(2016), pp. 10255-10262. [10.1364/AO.55.010255]

Multi-octave metamaterial reflective half-wave plate for millimeter and sub-millimeter wave applications

PISANO, Giampaolo;DE BERNARDIS, Paolo;
2016

Abstract

The quasi-optical modulation of linear polarization at millimeter and sub-millimeter wavelengths can be achieved by using rotating half-wave plates (HWPs) in front of polarization-sensitive detectors. Large operational bandwidths are required when the same device is meant to work simultaneously across different frequency bands. Previous realizations of half-wave plates, ranging from birefringent multi-plates to mesh-based devices, have achieved bandwidths of the order of 100%. Here we present the design and experimental characterization of a reflective HWP able to work across bandwidths of the order of 150%. The working principle of the novel device is completely different from any previous realization, and it is based on the different phase-shift experienced by two orthogonal polarizations reflecting, respectively, off an electric conductor and an artificial magnetic conductor.
2016
Atomic and Molecular Physics; optics; light beams
01 Pubblicazione su rivista::01a Articolo in rivista
Multi-octave metamaterial reflective half-wave plate for millimeter and sub-millimeter wave applications / Pisano, Giampaolo; Maffei, Bruno; Ade, Peter A. R.; DE BERNARDIS, Paolo; De Maagt, Peter; Ellison, Brian; Henry, Manju; Ng, Ming Wah; Schortt, Brian; Tucker, Carole. - In: APPLIED OPTICS. - ISSN 1559-128X. - STAMPA. - 55:36(2016), pp. 10255-10262. [10.1364/AO.55.010255]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/944243
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