Imprinted hydrogels for tunable hemispherical microlenses

Vincent Reboud; Isabel Obieta; Leire Bilbao; Virginia Sáez-Martínez; Mickael Brun; Fabien Laulagnet; Stefan Landis

doi:10.1016/j.mee.2013.03.150

Imprinted hydrogels for tunable hemispherical microlenses

Vincent Reboud, Isabel Obieta, Leire Bilbao, Virginia Sáez-Martínez, Mickael Brun, Fabien Laulagnet, Stefan Landis

Chemical Engineering & Applied Chemistry

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

Abstract

We report on the development of an ultraviolet curable hydrogel, based on combinations of poly(ethylene glycol) dimethacrylate (PEGMA), acrylic acid (AA) and N-Isopropylacrylamide (NIPPAm) for imprint lithography processes. The hydrogel was successfully imprinted to form dynamic microlens arrays. The response rate of the microlenses by volume change to water absorption was studied optically showing tunable focalisation of the light. Important optical refractive index change was measured between the dry and wet state of the microlenses. Our work suggests the use of this newly developed printable hydrogel for various imprinted components for sensing and imaging systems.

Original language	English
Pages (from-to)	189-192
Number of pages	4
Journal	Microelectronic Engineering
Volume	111
Early online date	6 Apr 2013
DOIs	https://doi.org/10.1016/j.mee.2013.03.150
Publication status	Published - Nov 2013

Keywords

hydrogel
microlens
imprint lithography
micro-optics

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10.1016/j.mee.2013.03.150

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abstract = "We report on the development of an ultraviolet curable hydrogel, based on combinations of poly(ethylene glycol) dimethacrylate (PEGMA), acrylic acid (AA) and N-Isopropylacrylamide (NIPPAm) for imprint lithography processes. The hydrogel was successfully imprinted to form dynamic microlens arrays. The response rate of the microlenses by volume change to water absorption was studied optically showing tunable focalisation of the light. Important optical refractive index change was measured between the dry and wet state of the microlenses. Our work suggests the use of this newly developed printable hydrogel for various imprinted components for sensing and imaging systems.",

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author = "Vincent Reboud and Isabel Obieta and Leire Bilbao and Virginia S{\'a}ez-Mart{\'i}nez and Mickael Brun and Fabien Laulagnet and Stefan Landis",

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AU - Reboud, Vincent

AU - Obieta, Isabel

AU - Bilbao, Leire

AU - Sáez-Martínez, Virginia

AU - Brun, Mickael

AU - Laulagnet, Fabien

AU - Landis, Stefan

PY - 2013/11

Y1 - 2013/11

N2 - We report on the development of an ultraviolet curable hydrogel, based on combinations of poly(ethylene glycol) dimethacrylate (PEGMA), acrylic acid (AA) and N-Isopropylacrylamide (NIPPAm) for imprint lithography processes. The hydrogel was successfully imprinted to form dynamic microlens arrays. The response rate of the microlenses by volume change to water absorption was studied optically showing tunable focalisation of the light. Important optical refractive index change was measured between the dry and wet state of the microlenses. Our work suggests the use of this newly developed printable hydrogel for various imprinted components for sensing and imaging systems.

AB - We report on the development of an ultraviolet curable hydrogel, based on combinations of poly(ethylene glycol) dimethacrylate (PEGMA), acrylic acid (AA) and N-Isopropylacrylamide (NIPPAm) for imprint lithography processes. The hydrogel was successfully imprinted to form dynamic microlens arrays. The response rate of the microlenses by volume change to water absorption was studied optically showing tunable focalisation of the light. Important optical refractive index change was measured between the dry and wet state of the microlenses. Our work suggests the use of this newly developed printable hydrogel for various imprinted components for sensing and imaging systems.

KW - hydrogel

KW - microlens

KW - imprint lithography

KW - micro-optics

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DO - 10.1016/j.mee.2013.03.150

M3 - Article

SN - 0167-9317

VL - 111

SP - 189

EP - 192

JO - Microelectronic Engineering

JF - Microelectronic Engineering

ER -

Imprinted hydrogels for tunable hemispherical microlenses

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