Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications

We propose a new type of color splitter, which guides a selected bandwidth of incident light towards the proper photosensitive area of the image sensor by exploiting the nanojet (NJ) beam phenomenon. Such splitting can be performed as an alternative to filtering out part of the received light on eac...

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Autores principales:	Oksana Shramkova, Valter Drazic, Bobin Varghese, Laurent Blondé, Valerie Allié
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	image sensor color splitter light diffraction NJ beam deflection double material element Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/142fa8ebedf54baa88d4dfef13273241
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id	oai:doaj.org-article:142fa8ebedf54baa88d4dfef13273241
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spelling	oai:doaj.org-article:142fa8ebedf54baa88d4dfef132732412021-11-25T18:31:55ZOptical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications10.3390/nano111130362079-4991https://doaj.org/article/142fa8ebedf54baa88d4dfef132732412021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3036https://doaj.org/toc/2079-4991We propose a new type of color splitter, which guides a selected bandwidth of incident light towards the proper photosensitive area of the image sensor by exploiting the nanojet (NJ) beam phenomenon. Such splitting can be performed as an alternative to filtering out part of the received light on each color subpixel. We propose to split the incoming light thanks to a new type of NJ-based near-field focusing double-material element with an insert. To suppress crosstalk, we use a Deep-Trench Isolation (DTI) structure. We demonstrate that the use of a dielectric insert block allows for reduction in the size of the color splitting element. By changing the position of the DTI, the functionality of separating blue, green and red light can be improved.Oksana ShramkovaValter DrazicBobin VargheseLaurent BlondéValerie AlliéMDPI AGarticleimage sensorcolor splitterlight diffractionNJ beam deflectiondouble material elementChemistryQD1-999ENNanomaterials, Vol 11, Iss 3036, p 3036 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	image sensor color splitter light diffraction NJ beam deflection double material element Chemistry QD1-999
spellingShingle	image sensor color splitter light diffraction NJ beam deflection double material element Chemistry QD1-999 Oksana Shramkova Valter Drazic Bobin Varghese Laurent Blondé Valerie Allié Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications
description	We propose a new type of color splitter, which guides a selected bandwidth of incident light towards the proper photosensitive area of the image sensor by exploiting the nanojet (NJ) beam phenomenon. Such splitting can be performed as an alternative to filtering out part of the received light on each color subpixel. We propose to split the incoming light thanks to a new type of NJ-based near-field focusing double-material element with an insert. To suppress crosstalk, we use a Deep-Trench Isolation (DTI) structure. We demonstrate that the use of a dielectric insert block allows for reduction in the size of the color splitting element. By changing the position of the DTI, the functionality of separating blue, green and red light can be improved.
format	article
author	Oksana Shramkova Valter Drazic Bobin Varghese Laurent Blondé Valerie Allié
author_facet	Oksana Shramkova Valter Drazic Bobin Varghese Laurent Blondé Valerie Allié
author_sort	Oksana Shramkova
title	Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications
title_short	Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications
title_full	Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications
title_fullStr	Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications
title_full_unstemmed	Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications
title_sort	optical efficiency enhancement of nanojet-based dielectric double-material color splitters for image sensor applications
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/142fa8ebedf54baa88d4dfef13273241
work_keys_str_mv	AT oksanashramkova opticalefficiencyenhancementofnanojetbaseddielectricdoublematerialcolorsplittersforimagesensorapplications AT valterdrazic opticalefficiencyenhancementofnanojetbaseddielectricdoublematerialcolorsplittersforimagesensorapplications AT bobinvarghese opticalefficiencyenhancementofnanojetbaseddielectricdoublematerialcolorsplittersforimagesensorapplications AT laurentblonde opticalefficiencyenhancementofnanojetbaseddielectricdoublematerialcolorsplittersforimagesensorapplications AT valerieallie opticalefficiencyenhancementofnanojetbaseddielectricdoublematerialcolorsplittersforimagesensorapplications
_version_	1718411000080760832

Optical Efficiency Enhancement of Nanojet-Based Dielectric Double-Material Color Splitters for Image Sensor Applications

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