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arXiv · 2003.04403

Nanostructure-modulated planar high spectral resolution spectro-polarimeter

L. Pjotr Stoevelaar·Jonas Berzinš·Fabrizio Silvestri·Stefan Fasold·Khosro Zangeneh Kamali·Heiko Knopf·Falk Eilenberger·Frank Setzpfandt·Stefan M. B. Bäumer·Giampiero Gerini
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Abstract

We present a planar spectro-polarimeter based on Fabry-P{é}rot cavities with embedded polarization-sensitive high-index nanostructures. A $7~μ$m-thick spectro-polarimetric system for 3 spectral bands and 2 linear polarization states is experimentally demonstrated. Furthermore, an optimal design is theoretically proposed, estimating that a system with a bandwidth of 127~nm and a spectral resolution of 1~nm is able to reconstruct the first three Stokes parameters \textcolor{black}{with a signal-to-noise ratio of -13.14~dB with respect to the the shot noise limited SNR}. The pixelated spectro-polarimetric system can be directly integrated on a sensor, thus enabling applicability in a variety of miniaturized optical devices, including but not limited to satellites for Earth observation.

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L. Pjotr Stoevelaar, Jonas Berzinš, Fabrizio Silvestri, Stefan Fasold, Khosro Zangeneh Kamali, Heiko Knopf, Falk Eilenberger, Frank Setzpfandt, Stefan M. B. Bäumer, Giampiero Gerini. 2020-05-25. Nanostructure-modulated planar high spectral resolution spectro-polarimeter. https://doi.org/10.1364/oe.392536

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