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Muller Nicolas

Professeur HES associé

Main skills

Optical and Electron Microscopy

Professeur HES associé

Phone: +41 26 429 66 45

Haute école d'ingénierie et d'architecture de Fribourg
Boulevard de Pérolles 80, 1700 Fribourg, CH

Institute
iPrint - Institut de printing

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Ongoing

Impulse - Digital printing on 3 dimensional freeform objects

Role: Collaborator

Requérant(e)s: FR - EIA - Institut IPRINT

Financement: CTI; Polytype Converting AG; Swatch Group R&D SA; Form AG; FPT Robotik GmbH

Description du projet : A basic technology for direct-to-shape printing DTS will be developed consisting of robot based highly accurate manipulation of an inkjet printhead, a fluid management system, the generation of complex printing trajectories, raster image processing as well as a multitude of image correction factors.

Research team within HES-SO: Bircher Fritz, Bürgy Olivier, Perritaz Bastien, Compagnon Dimitri, Muller Nicolas, Carrie Natalia, Brodard Patricia, Domae Yoshinori

Partenaires académiques: CSEM; FR - EIA - Institut IPRINT; Valente Anna, SUPSI

Durée du projet: 26.03.2019 - 30.06.2021

Montant global du projet: 2'043'049 CHF

Statut: Ongoing

Completed

Student supervision 2019

Role: Collaborator

Requérant(e)s: Nussbaumer Roseline, FR - EIA - Institut IPRINT

Financement: Socle Ra&D

Description du projet : Supervision of students at iPrint in 2019

Research team within HES-SO: Pirrami Lorenzo, Wenger Raphaël, Bourguet Florian, Bircher Fritz, Filliger Sebastian, Huber Benjamin, Renner Johannes, Mauron Muriel, Nussbaumer Roseline, Soutrenon Mathieu, Muller Nicolas, Gugler Gilbert, Carrie Natalia, Mazza Marco, Brodard Patricia

Partenaires académiques: Nussbaumer Roseline, FR - EIA - Institut IPRINT

Durée du projet: 19.12.2018 - 31.12.2019

Montant global du projet: 10'000 CHF

Statut: Completed

The Inkjet Training

Role: Collaborator

Requérant(e)s: FR - EIA - Institut IPRINT, Bircher Fritz, FR - EIA - Institut IPRINT

Financement: DIVERS

Description du projet : A Hands-on Lab-based Course in Inkjet Engineering and Inkjet Chemistry.

Research team within HES-SO: Caldi Jonathan, Wenger Raphaël, Bourguet Florian, Kolly Gaëtan, Bircher Fritz, Filliger Sebastian, Huber Benjamin, Renner Johannes, Mauron Muriel, Kessler Philip, Soutrenon Mathieu, Murith Loïc, Schneuwly Vincent, Varisco Massimo, Kuhlmann Martin, Muller Nicolas, Jemmely Yannick, Gugler Anne, Carrie Natalia, Ilano Céline

Partenaires académiques: FR - EIA - Institut IPRINT; Bircher Fritz, FR - EIA - Institut IPRINT

Durée du projet: 20.01.2016 - 16.07.2019

Statut: Completed

2021

Scattering from controlled defects in woodpile photonic crystals

Scientifique ArODES

Aeby Stefan, Aubry Geoffroy J., Muller Nicolas, Scheffold Frank

Advanced Optical Materials, 2021, article no. e2001699

Link to the publication

Summary:

Photonic crystals display partial or full band gaps that become more pronounced with rising refractive index contrast. However, imperfections in the material cause light scattering and extinction of the interfering propagating waves. Positive as well as negative defect volumes may contribute to this kind of optical perturbation. In this study, 3D woodpile photonic crystals are fabricated and characterized with a pseudo‐bandgap for near‐infrared optical wavelengths. By direct laser writing, defects are introduced in the periodic structure at selected positions. It is shown that defect scattering can be modeled by considering the difference between the disordered and the regular structure. The findings pave the way toward better control and understanding of the role of defects in photonic materials that will be crucial for their usability in potential applications.

2021

Printing and generating structural colors by means of inkjet technology

Conference ArODES

Nicolas Muller, Gilbert Gugler

Proceedings of European Coating Symposium (ECS) 2021, 7-9 September 2021, Brussels, Belgium

Link to the conference

Summary:

In the context of Industry 4.0, inkjet technology has the unrivaled advantage of being digital and versatile by its nature. The recent breakthrough in the understanding of structurally colored materials provides new design platforms for pigments in a variety of applications. An appealing approach is the design of photonic pigments for inkjet printing. However, inkjet technology imposes strict limitations with respect to pigment size. Here we show the deposition and the fabrication of photonic pigments by inkjet technology.

Long distance jetting :

Conference ArODES

digital printing on non-planar shapes

Nicolas Muller, Gilbert Gugler, Natalia Carrie, Yoshinori Domae

Proceedings of European Coating Symposium (ECS) 2021, 7-9 September 2021, Brussels, Belgium

Link to the conference

Summary:

The inkjet printing technology plays a major role in the digital printing field. Having the possibility to digitally and selectively print or coat areas offers a great advantage. Usually inkjet was limited to flat substrates but nowadays with modern printheads and advanced waveform tuning, it is possible to extend the jetting distance and print on non-planar shapes. This paper will compare different printheads and the strategies used to increase the jetting distance.

Achievements

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Muller Nicolas

Professeur HES associé

Main skills

Inkjet

Lithographic Printing

Photonics

Particle Synthesis

Optical and Electron Microscopy

Spectroscopy

Professeur HES associé