Pixel-sized infrared filters for a multispectral focal plane array

Antoine Bierret; Grégory Vincent; Julien Jaeck; Jean Luc Pelouard; Fabrice Pardo; Florence de la Barrière; Riad Haïdar

doi:10.1364/AO.57.000391

Pixel-sized infrared filters for a multispectral focal plane array

Antoine Bierret, Grégory Vincent, Julien Jaeck, Jean Luc Pelouard, Fabrice Pardo, Florence de la Barrière, Riad Haïdar

Research output: Contribution to journal › Article › peer-review

Abstract

We present a theoretical study of guided-mode-resonance filters made of two sub-wavelength metallic gratings and a dielectric waveguide, with lateral geometries compatible with the size of infrared focal plane array pixels. Contrary to most of the studies described in the literature, we consider here a focused beam on finite-sized filters, and we investigate the optical properties of a mosaic of 30 μm-long filters. We demonstrate the spectral filtering ability and low crosstalk of such components. We also study the impact of an oblique beam onto a filtering mosaic. We finally discuss the opportunities offered by these results for a new generation of multispectral infrared cameras, and we give an example of a simple architecture.

Original language	English
Pages (from-to)	391-395
Number of pages	5
Journal	Applied Optics
Volume	57
Issue number	3
DOIs	https://doi.org/10.1364/AO.57.000391
Publication status	Published - 20 Jan 2018
Externally published	Yes

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title = "Pixel-sized infrared filters for a multispectral focal plane array",

abstract = "We present a theoretical study of guided-mode-resonance filters made of two sub-wavelength metallic gratings and a dielectric waveguide, with lateral geometries compatible with the size of infrared focal plane array pixels. Contrary to most of the studies described in the literature, we consider here a focused beam on finite-sized filters, and we investigate the optical properties of a mosaic of 30 μm-long filters. We demonstrate the spectral filtering ability and low crosstalk of such components. We also study the impact of an oblique beam onto a filtering mosaic. We finally discuss the opportunities offered by these results for a new generation of multispectral infrared cameras, and we give an example of a simple architecture.",

author = "Antoine Bierret and Gr{\'e}gory Vincent and Julien Jaeck and Pelouard, \{Jean Luc\} and Fabrice Pardo and \{de la Barri{\`e}re\}, Florence and Riad Ha{\"i}dar",

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AU - Bierret, Antoine

AU - Vincent, Grégory

AU - Jaeck, Julien

AU - Pelouard, Jean Luc

AU - Pardo, Fabrice

AU - de la Barrière, Florence

AU - Haïdar, Riad

PY - 2018/1/20

Y1 - 2018/1/20

N2 - We present a theoretical study of guided-mode-resonance filters made of two sub-wavelength metallic gratings and a dielectric waveguide, with lateral geometries compatible with the size of infrared focal plane array pixels. Contrary to most of the studies described in the literature, we consider here a focused beam on finite-sized filters, and we investigate the optical properties of a mosaic of 30 μm-long filters. We demonstrate the spectral filtering ability and low crosstalk of such components. We also study the impact of an oblique beam onto a filtering mosaic. We finally discuss the opportunities offered by these results for a new generation of multispectral infrared cameras, and we give an example of a simple architecture.

AB - We present a theoretical study of guided-mode-resonance filters made of two sub-wavelength metallic gratings and a dielectric waveguide, with lateral geometries compatible with the size of infrared focal plane array pixels. Contrary to most of the studies described in the literature, we consider here a focused beam on finite-sized filters, and we investigate the optical properties of a mosaic of 30 μm-long filters. We demonstrate the spectral filtering ability and low crosstalk of such components. We also study the impact of an oblique beam onto a filtering mosaic. We finally discuss the opportunities offered by these results for a new generation of multispectral infrared cameras, and we give an example of a simple architecture.

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DO - 10.1364/AO.57.000391

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VL - 57

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EP - 395

JO - Applied Optics

JF - Applied Optics

IS - 3

ER -

Pixel-sized infrared filters for a multispectral focal plane array

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