Generation of arbitrarily patterned polarizers using 2-photon polymerization.


Journal

Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288

Informations de publication

Date de publication:
29 Sep 2024
Historique:
received: 01 04 2024
accepted: 23 09 2024
medline: 30 9 2024
pubmed: 30 9 2024
entrez: 29 9 2024
Statut: epublish

Résumé

Patterned polarizers are prepared using liquid crystals (LC) doped with a black dichroic dye and in combination with a linear polarizer. The pattern is achieved with a nanostructured LC alignment surface, that is generated using a two-photon polymerization direct laser write (2PP-DLW). This technique creates a pattern of high-resolution grooves in the photoresist at any arbitrary angle. The angle governs the LC orientation at any substrate surface point, determining the transmitted light linear polarization angle. This paper presents the first use of a 2PP-DLW cured positive tone photoresist for dichroic dye-doped LC alignment. Two complementary photoresists have been employed: conventional negative tone SU-8 photoresist and, in this context novel, positive tone S1805 photoresist. The alignment quality of the polarizers has been assessed by analyzing the transmission using an additional polarizer. For SU-8, the resulting grayscale pattern and a contrast ratio (CR) of 14 has measured. The uniformity of the alignment has been measured to be 65% using normalized Shannon entropy (H). For S1805, a CR of 37 was measured, and a uniformity of 63% was obtained. 2PP-DLW allows for shaping complex patterns in submicron dimensions and for the fabrication of arbitrarily patterned polarizers and other LC devices.

Identifiants

pubmed: 39343947
doi: 10.1038/s41598-024-73946-z
pii: 10.1038/s41598-024-73946-z
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

22550

Subventions

Organisme : Spanish Government
ID : TSI-063000-2021-83
Organisme : Spanish Government
ID : TSI-063000-2021-83
Organisme : Spanish Government
ID : TSI-063000-2021-83
Organisme : Spanish Government
ID : TSI-063000-2021-83
Organisme : Spanish Government
ID : TSI-063000-2021-83
Organisme : Comunidad de Madrid
ID : APOYO-JOVENES-21-9FOMOQ-22-0CNGFM
Organisme : Comunidad de Madrid
ID : APOYO-JOVENES-21-9FOMOQ-22-0CNGFM
Organisme : Comunidad de Madrid
ID : IND2020/TIC-1724
Organisme : Comunidad de Madrid
ID : APOYO-JOVENES-21-9FOMOQ-22-0CNGFM
Organisme : Comunidad de Madrid
ID : APOYO-JOVENES-21-9FOMOQ-22-0CNGFM
Organisme : European Space Agency (ESA)
ID : 4000133048/20/NL/KML
Organisme : European Union
ID : G.A. 101004462
Organisme : European Union
ID : G.A. 101062995

Informations de copyright

© 2024. The Author(s).

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Auteurs

Byron Ganazhapa (B)

CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Av. Complutense 30, Madrid, 28040, Spain. b.ganazhapa@upm.es.
LASING S.A, c/Julián Camarillo, 26, Madrid, 28037, Spain. b.ganazhapa@upm.es.

Javier Pereiro-García (J)

CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Av. Complutense 30, Madrid, 28040, Spain.

Xabier Quintana Arregui (XQ)

CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Av. Complutense 30, Madrid, 28040, Spain.

Morten Andreas Geday (MA)

CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Av. Complutense 30, Madrid, 28040, Spain.

Gonzalo Guadaño (G)

LASING S.A, c/Julián Camarillo, 26, Madrid, 28037, Spain.

Manuel Caño-García (M)

CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Av. Complutense 30, Madrid, 28040, Spain.
Department of Electronics and Computer Technology, Research Centre for Information and Communication Technologies (CITIC-UGR), University of Granada, Granada, Spain.

Classifications MeSH