Person | Adolphe Merkle Institute | Université de Fribourg

SABA Matthias

Group leader, Soft Matter Physics

Adolphe Merkle Institute Chemin des Verdiers 4 CH-1700 Fribourg Switzerland

Office:	B130
Phone:	+41 26 300 9114
Email:	matthias.saba@unifr.ch
	0000-0001-5281-4506

Projects lead

Double Net Metamaterials

Interwoven metallic networks reveal how electron acoustic waves and quasi-BICs emerge through intricate…

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Collective emission in metamaterials

Polarisation and angle resolved thermal emission and fluorescence in network-like metamaterials

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Metamaterial Floquet modes

Developing tools to obtain metamaterial evanescent Floquet modes

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Computer-generated disordered networks for photonic bandgap

Random nanoscale networks in insects reveal how disorder can create brilliant structural colours

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Projects team

Angle-Independent Structural Color in Stretchable Materials

We engineer iridescent elastomers with tailored surface roughness to achieve vivid, structural colour…

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Block copolymer self-assembly

Block copolymer self-assembly unlocks large, ordered 3D nanostructures for advanced material applications

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Publications

Termination-Driven Control over Bound States in the Continuum Q-Factors and Frequencies in Plasmonic Double Net Metamaterials
Cédric Schumacher, Bilel Abdennadher, Ullrich Steiner, Matthias Saba
ACS Photonics 12 , 5009-5016 (2025)

Broadband circular dichroism in chiral plasmonic woodpiles
Bilel Abdennadher, René Iseli, Ullrich Steiner, Matthias Saba
Applied Physics A 129 (2023)

Metamaterial eigenmodes beyond homogenization
Antonio Günzler, Cedric Schumacher, Ullrich Steiner, Matthias Saba
Optical Materials Express 12 , 2747 (2022)

SPIRE—a software tool for bicontinuous phase recognition: application for plastid cubic membranes
Tobias M Hain, Michał Bykowski, Matthias Saba, Myfanwy E Evans, Gerd E Schröder-Turk, Łucja Kowalewska
Plant Physiology 188 , 81-96 (2021)

Block Copolymer Directed Metamaterials and Metasurfaces for Novel Optical Devices
Alberto Alvarez‐Fernandez, Cian Cummins, Matthias Saba, Ullrich Steiner, Guillaume Fleury, Virginie Ponsinet, Stefan Guldin
Advanced Optical Materials (2021)

SPIRE, Surface Projection Image Recognition Environment for bicontinuous phases: application for plastid cubic membranes
Tobias M. Hain, Michał K. Bykowski, Matthias Saba, Myfanwy E. Evans, Gerd E. Schröder-Turk, Łucja M. Kowalewska
bioRxiv (2021)

Hyperbolic Optical Metamaterials from Shear‐Aligned Block Copolymer Cylinder Arrays
Cédric Kilchoer, Doha Abdelrahman, S. Narjes Abdollahi, Ava A. LaRocca, Ullrich Steiner, Matthias Saba, Ilja Gunkel, Bodo D. Wilts
Advanced Photonics Research (2020)

Cascaded nanooptics to probe microsecond atomic-scale phenomena
Marlous Kamp, Bart de Nijs, Nuttawut Kongsuwan, Matthias Saba, Rohit Chikkaraddy, Charlie A. Readman, William M. Deacon, Jack Griffiths, Steven J. Barrow, Oluwafemi S. Ojambati, Demelza Wright, Junyang Huang, Ortwin Hess, Oren A. Scherman, Jeremy J. Baumberg
Proceedings of the National Academy of Sciences (2020)

Strong Circular Dichroism in Single Gyroid Optical Metamaterials
Cédric Kilchoer, Narjes Abdollahi, James A. Dolan, Doha Abdelrahman, Matthias Saba, Ulrich Wiesner, Ullrich Steiner, Ilja Gunkel, Bodo D. Wilts
Advanced Optical Materials (2020)

Nature of topological protection in photonic spin and valley Hall insulators
Matthias Saba, Stephan Wong, Mathew Elman, Sang Soon Oh, Ortwin Hess
Physical Review B (2020)

Gapless unidirectional photonic transport using all-dielectric kagome lattices
Stephan Wong, Matthias Saba, Ortwin Hess, Sang Soon Oh
Physical Review Research (2020)

Designing Refractive Index Fluids using the Kramers-Kronig Relations
Tianqi Sai, Matthias Saba, Eric R. Dufresne, Ullrich Steiner, Bodo D. Wilts
Faraday Discussions (2020)

The Nature of Topological Protection in Spin and Valley Hall Insulators

preprint (2019)

Photonic Topological Insulator Edge Modes Using All-Dielectric Kagome Photonic Crystals
S. Wong, M. Saba, O. Hess, S. S. Oh
2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) (2019)

Metasurfaces Atop Metamaterials: Surface Morphology Induces Linear Dichroism in Gyroid Optical Metamaterials
James A. Dolan, Raphael Dehmel, Angela Demetriadou, Yibei Gu, Ulrich Wiesner, Timothy D. Wilkinson, Ilja Gunkel, Ortwin Hess, Jeremy J. Baumberg, Ullrich Steiner, Matthias Saba, Bodo D. Wilts
Advanced Materials (2019)

Group theoretical route to weakly and strongly protected surface states in 2D and 3D photonic crystals
Matthias Saba, Stephan Wong, Mathew Elman, Sang Soon Oh, Ortwin Hess
2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) (2018)

Chiral Light-matter Interaction in Dielectric Photonic Topological Insulators
Sang Soon Oh, Ben Lang, Daryl M. Beggs, Diana L. Huffaker, Matthias Saba, Ortwin Hess
CLEO Pacific Rim Conference (2018)

Group Theoretical Route to Deterministic Weyl Points in Chiral Photonic Lattices
Matthias Saba, Joachim M. Hamm, Jeremy J. Baumberg, Ortwin Hess
Physical Review Letters (2017)

Sheet-like chiro-optical material designs based C(Y) surfaces
M. Saba, A.-L. Robisch, M. Thiel, O. Hess, Gerd E. Schroeder-Turk
International Conference on Biophotonics V (2017)

Gyroid Optical Metamaterials: Calculating the Effective Permittivity of Multidomain Samples
James A. Dolan, Matthias Saba, Raphael Dehmel, Ilja Gunkel, Yibei Gu, Ulrich Wiesner, Ortwin Hess, Timothy D. Wilkinson, Jeremy J. Baumberg, Ullrich Steiner, Bodo D. Wilts
ACS Photonics (2016)

Bloch Modes and Evanescent Modes of Photonic Crystals: Weak Form Solutions Based on Accurate Interface Triangulation
Matthias Saba, Gerd Schröder-Turk
Crystals (2015)

Absence of Circular Polarisation in Reflections of Butterfly Wing Scales with Chiral Gyroid Structure
Matthias Saba, Bodo D. Wilts, Johannes Hielscher, Gerd E. Schröder-Turk
Materials Today: Proceedings (2014)

Experimental investigation of the mechanical stiffness of periodic framework-patterned elastomers
N. Francois, T. Arnoux, L. Garcia, S. T. Hyde, V. Robins, M. Saadatfar, M. Saba, T. J. Senden
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences (2013)

Group theory of circular-polarization effects in chiral photonic crystals with four-fold rotation axes applied to the eight-fold intergrowth of gyroid nets
Matthias Saba, Mark D. Turner, Klaus Mecke, Min Gu, Gerd E. Schröder-Turk
Physical Review B (2013)

Chiral photonic crystals with four-fold symmetry: band structure and S-parameters of eight-fold intergrown Gyroid nets
Matthias Saba, Mark D. Turner, Min Gu, Klaus Mecke, Gerd E. Schröder-Turk
Micro/Nano Materials, Devices, and Systems (2013)

Miniature chiral beamsplitter based on gyroid photonic crystals
Mark D. Turner, Matthias Saba, Qiming Zhang, Benjamin P. Cumming, Gerd E. Schröder-Turk, Min Gu
Nature Photonics (2013)

Polycontinuous geometries for inverse lipid phases with more than two aqueous network domains
Gerd E. Schröder-Turk, Liliana de Campo, Myfanwy E. Evans, Matthias Saba, Sebastian C. Kapfer, Trond Varslot, Karsten Grosse-Brauckmann, Stuart Ramsden, Stephen T. Hyde
Faraday Discuss. (2013)

A Chiral Beamsplitter Inspired by Butterfly Nanostructures
Mark D. Turner, Matthias Saba, Qiming Zhang, Benjamin P. Cumming, Gerd E. Schröder-Turk, Min Gu
Frontiers in Optics 2013 Postdeadline (2013)

Fabrication and Characterisation of Chiral Beamsplitters via Galvo-Dithered Direct Laser Writing
Mark D. Turner, Matthias Saba, Qiming Zhang, Benjamin P. Cumming, Gerd E. Schröder-Turk, Min Gu
Frontiers in Optics 2012/Laser Science XXVIII (2012)

Circular Dichroism in Biological Photonic Crystals and Cubic Chiral Nets
M. Saba, M. Thiel, M. D. Turner, S. T. Hyde, M. Gu, K. Grosse-Brauckmann, D. N. Neshev, K. Mecke, G. E. Schröder-Turk
Physical Review Letters (2011)

SABA Matthias

Double Net Metamaterials

Collective emission in metamaterials

Metamaterial Floquet modes

Computer-generated disordered networks for photonic bandgap

Angle-Independent Structural Color in Stretchable Materials

Block copolymer self-assembly