Publications

A practical review on promoting connectivity in topology optimization

Cool, Vanessa ; Aage, Niels ; Sigmund, Ole
in: Structural and Multidisciplinary Optimization, vol: 68, issue: 4

Type: Review (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1007/s00158-025-04004-z

Density-based hole seeding in XFEM level-set topology optimization of fluid problems

Høghøj, Lukas C. ; Andreasen, Casper Schousboe ; Maute, Kurt
in: Structural and Multidisciplinary Optimization, vol: 68, issue: 2

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1007/s00158-024-03956-y

Engineering optical forces through Maxwell stress tensor inverse design

Jokisch, Beñat Martinez De Aguirre ; Christiansen, Rasmus Ellebæk ; Sigmund, Ole
in: Journal of the Optical Society of America B: Optical Physics, vol: 42, issue: 4, pages: 731-741

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1364/JOSAB.546272

Exploring thermal insulation enhancement in differentially heated cavities through topology optimization

Fragnito, Andrea ; Andreasen, Casper Schousboe ; Iasiello, Marcello ; Mauro, Gerardo Maria ; Bianco, Nicola
in: International Journal of Thermal Sciences

Type: Journal article (Peer reviewed)

Status: Accepted/In press | Year: 2025 | DOI: https://doi.org/10.1016/j.ijthermalsci.2025.109748

Extremal structures with embedded prefailure indicators

Christensen, Christoffer Fyllgraf ; Engqvist, Jonas ; Wang, Fengwen ; Sigmund, Ole ; Wallin, Mathias
in: Proceedings of the National Academy of Sciences of the United States of America, vol: 122, issue: 5

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1073/pnas.2412285122

From density to geometry: Instance segmentation for reverse engineering of optimized structures

Rochefort-Beaudoin, Thomas ; Vadean, Aurelian ; Achiche, Sofiane ; Aage, Niels
in: Engineering Applications of Artificial Intelligence, vol: 141

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1016/j.engappai.2024.109732

Improved Third Medium Formulation for 3D Topology Optimization with Contact

Frederiksen, Andreas H. ; Dalklint, Anna ; Sigmund, Ole ; Poulios, Konstantinos
in: Computer Methods in Applied Mechanics and Engineering, vol: 436

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1016/j.cma.2024.117595

Inverse design of compression-torsion mechanical metamaterials with suppressed Poisson effect under large deformation

Zhang, Jinhao ; Zhou, Xiao ; Xiao, Mi ; Jiang, Yu ; Wang, Fengwen ; Fang, Xin
in: Composite Structures

Type: Journal article (Peer reviewed)

Status: Accepted/In press | Year: 2025 | DOI: https://doi.org/10.1016/j.compstruct.2025.119125

Metamaterial design with vibroacoustic bandgaps through topology optimization

Cool, Vanessa ; Sigmund, Ole ; Aage, Niels
in: Computer Methods in Applied Mechanics and Engineering, vol: 436

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1016/j.cma.2025.117744

Nonlinear dynamic substructuring in the frequency domain

Soleimani, Hossein ; Aage, Niels
in: Computer Methods in Applied Mechanics and Engineering, vol: 439

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1016/j.cma.2025.117882

Topology Optimization of Contact-Aided Thermo-Mechanical Regulators

Dalklint, Anna ; Alexandersen, Joe ; Frederiksen, Andreas Henrik ; Poulios, Konstantinos ; Sigmund, Ole
in: International Journal for Numerical Methods in Engineering, vol: 126, issue: 2

Type: Journal article (Peer reviewed)

Status: Published | Year: 2025 | DOI: https://doi.org/10.1002/nme.7661

Adding friction to Third Medium Contact: A crystal plasticity inspired approach

Frederiksen, Andreas H. ; Rokoš, Ondřej ; Poulios, Konstantinos ; Sigmund, Ole ; Geers, Marc G.D.
in: Computer Methods in Applied Mechanics and Engineering, vol: 432, issue: Part B

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.cma.2024.117412

An 808 Line Phasor-Based Ddehomogenisation Matlab Code For Multi-Scale Topology Optimisation

Woldseth, Rebekka Varum ; Sigmund, Ole ; Jensen, Peter Dørffler Ladegaard
in: Structural and Multidisciplinary Optimization, vol: 67

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.48550/arXiv.2405.14321

Analytical realization of complex thermal meta-devices

Li, Weichen ; Sigmund, Ole ; Zhang, Xiaojia Shelly
in: Nature Communications, vol: 15, issue: 1

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1038/s41467-024-49630-1

Anatomically and mechanically conforming patient-specific spinal fusion cages designed by full-scale topology optimization

Smit, Thijs ; Aage, Niels ; Haschtmann, Daniel ; Ferguson, Stephen J. ; Helgason, Benedikt
in: Journal of the Mechanical Behavior of Biomedical Materials, vol: 159

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.jmbbm.2024.106695

A non-dimensional time-domain lumped model for externally DC biased capacitive microphones with two electrodes

Printezis, Georgios ; Aage, Niels ; Lucklum, Frieder
in: Applied Acoustics, vol: 216

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.apacoust.2023.109758

A Reduced Order Series Expansion for the BEM Incorporating the Boundary Layer Impedance Condition

Paltorp, Mikkel ; Henrìquez, Vicente Cutanda ; Aage, Niels ; Andersen, Peter Risby
in: Journal of Theoretical and Computational Acoustics, vol: 32, issue: 02

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1142/S2591728523500123

Efficient Inverse-designed Structural Infill for Complex Engineering Structures

Jensen, Peter Dørffler Ladegaard ; Olsen, Tim Felle ; Bærentzen, J. Andreas ; Aage, Niels ; Sigmund, Ole
in: Thin-Walled Structures, vol: 195

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.tws.2023.111427

Experimental realization of deep sub-wavelength confinement of light in a topology-optimized InP nanocavity

Xiong, Meng ; Christiansen, Rasmus Ellebak ; Schröder, Frederik ; Yu, Yi ; Casses, Laura Nevenka ; Semenova, Elizaveta ; Yvind, Kresten ; Stenger, Nicolas ; Sigmund, Ole ; Mørk, Jesper
in: Optical Materials Express, vol: 14, issue: 2, pages: 397-406

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1364/OME.513625

In silico medical device testing of anatomically and mechanically conforming patient-specific spinal fusion cages designed by full-scale topology optimisation

Smit, Thijs ; Aage, Niels ; Haschtmann, Daniel ; Ferguson, Stephen J. ; Helgason, Benedikt
in: Frontiers in Bioengineering and Biotechnology, vol: 12

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.3389/fbioe.2024.1347961

Inverse design and characterization of compact, broadband, and low-loss chip-scale photonic power splitters

Hansen, Søren Engelberth ; Arregui Bravo, Guillermo ; Babar, Ali Nawaz ; Christiansen, Rasmus Ellebæk ; Stobbe, Søren
in: Materials for Quantum Technology, vol: 4

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1088/2633-4356/ad2521

Inverse design of dielectric nanostructures for optical trapping

Jokisch, Benat Martinez de Aguirre ; Sigmund, Ole ; Christiansen, Rasmus Ellebæk
part of: Proceedings of SPIE: Optical Trapping and Optical Micromanipulation XXI, 2024
Presented at: SPIE Nanoscience + Engineering 2024

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1117/12.3025872

Matlab codes for 3D topology optimization of multi-material piezoelectric actuators and energy harvesters

Homayouni-Amlashi, Abbas ; Sigmund, Ole ; Schlinquer, Thomas ; Rakotondrabe, Micky ; Mohand-Ousaid, Abdenbi
in: Structural and Multidisciplinary Optimization, vol: 67, issue: 9

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1007/s00158-024-03867-y

Near-field characterization of deep sub-wavelength confinement in InP cavities

Schröder, Frederik ; Xiong, Meng ; Christiansen, Rasmus Ellebæk ; Yu, Yi ; Casses, Laura ; Semenova, Elizaveta ; Yvind, Kresten ; Wubs, Martijn ; Sigmund, Ole ; Mørk, Jesper ; Leitherer-Stenger, Nicolas Claude
Presented at: National Optics Congress 2024

Type: Poster (Peer reviewed)

Status: Published | Year: 2024

Omnidirectional Gradient Force Optical Trapping in Dielectric Nanocavities by Inverse Design

Martinez de Aguirre Jokisch, Beñat ; Gøtzsche, Benjamin Falkenberg ; Kristensen, Philip Trøst ; Wubs, Martijn ; Sigmund, Ole ; Christiansen, Rasmus Ellebæk
in: ACS Photonics, vol: 11, issue: 12, pages: 5118–5127

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1021/acsphotonics.4c01060

On neural networks for generating better local optima in topology optimization

Herrmann, Leon ; Sigmund, Ole ; Li, Viola Muning ; Vogl, Christian ; Kollmannsberger, Stefan
in: Structural and Multidisciplinary Optimization, vol: 67, issue: 11

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1007/s00158-024-03908-6

Phasor Noise for Dehomogenisation in 2D Multiscale Topology Optimisation

Woldseth, Rebekka V. ; Bærentzen, J. Andreas ; Sigmund, Ole
in: Computer Methods in Applied Mechanics and Engineering, vol: 418, Part B

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.cma.2023.116551

Robust topology and discrete fiber orientation optimization under principal material uncertainty

Ypsilantis, Konstantinos Iason ; Faes, Matthias G.R. ; Lagaros, Nikos D. ; Aage, Niels ; Moens, David
in: Computers and Structures, vol: 300

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.compstruc.2024.107421

Room-Temperature Continuous-Wave Operation of a Nanolaser with Extreme Dielectric Confinement

Xiong, Meng ; Yu, Yi ; Berdnikov, Yury ; Borregaard, Simon Klinck ; Dubré, Adrian Holm ; Christiansen, Rasmus Ellebæk ; Semenova, Elizaveta ; Yvind, Kresten ; Mørk, Jesper
part of: 2024 IEEE 29th International Semiconductor Laser Conference (ISLC), pages: 1-2, 2024
Presented at: IEEE 29th International Semiconductor Laser Conference (ISLC)

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1109/ISLC57752.2024.10717336

Simple incision and suture modeling on fixed structured grids

Holm, Markus T. ; Haugaard, Asger M. ; Poulios, Konstantinos ; Aage, Niels
in: Journal of the Mechanical Behavior of Biomedical Materials, vol: 160

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.jmbbm.2024.106692

Taylor series approximations for faster robust topology optimization

Mommeyer, Christiaan ; Lombaert, Geert ; Schevenels, Mattias ; Sigmund, Ole
in: Structural and Multidisciplinary Optimization, vol: 67, issue: 10

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1007/s00158-024-03890-z

Topology optimization design of Chladni patterns for vibration mode manipulability

Xue, Liang ; Wen, Guilin ; Wang, Fengwen ; Pedersen, Niels L.
in: Acta Mechanica Sinica, vol: 40, issue: 4

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1007/s10409-023-23445-x

Topology optimization for improving stability of a rotating thin plate

Sun, Jialiang ; Tian, Qiang ; Wang, Fengwen ; Hu, Haiyan
in: Nonlinear Dynamics, vol: 112, pages: 9725-9742

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1007/s11071-024-09558-z

Topology Optimization framework for designing efficient Thermo-Optical Phase Shifters

Jokisch, Benat Martinez de Aguirre ; Christiansen, Rasmus Ellebæk ; Sigmund, Ole
in: Journal of the Optical Society of America B: Optical Physics, vol: 41, issue: 2, pages: A18-A31

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1364/JOSAB.499979

Topology optimization of high-performance optomechanical resonator

Shi, Yincheng ; Wang, Fengwen ; Høj, Dennis ; Sigmund, Ole ; Andersen, Ulrik Lund
part of: Quantum 2.0 in Proceedings Quantum 2.0 Conference and Exhibition, 2024
Presented at: Optica Quantum 2.0 Conference and Exhibition 2024

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1364/QUANTUM.2024.QTu3A.34

Topology optimization of labyrinth seals using interface identification techniques

Moscatelli, Eduardo ; Andreasen, Casper S. ; Aage, Niels ; Picelli, Renato ; Silva, Emílio C.N.
in: Computer Methods in Applied Mechanics and Engineering, vol: 420

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.cma.2023.116716

Topology optimization of multi-material active structures to reduce energy consumption and carbon footprint

Wang, Yafeng ; Sigmund, Ole
in: Structural and Multidisciplinary Optimization, vol: 67, issue: 1

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1007/s00158-023-03698-3

Topology optimization of self-contacting structures

Frederiksen, Andreas Henrik ; Sigmund, Ole ; Poulios, Konstantinos
in: Computational Mechanics, vol: 73, pages: 967–981

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1007/s00466-023-02396-7

Topology optimization of transient vibroacoustic problems for broadband filter design using cut elements

Dilgen, Cetin B. ; Aage, Niels
in: Finite Elements in Analysis and Design, vol: 234

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.finel.2024.104123

Two-Photon Absorption based Silicon Photodetector with Topology Optimized cavity

Dahiya, Robin ; Kamel, Ayman N. ; Christiansen, Rasmus E. ; Marchevsky, Andrey ; Hansen, Ole ; Yvind, Kresten
part of: Proceedings os SPIE, 2024
Presented at: SPIE Photonics Europe 2024

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1117/12.3022438

Validation and characterization of algorithms and software for photonics inverse design

Chen, Mo ; Christiansen, Rasmus E. ; Fan, Jonathan A. ; Işiklar, Göktuğ ; Jiang, Jiaqi ; Johnson, Steven G. ; Ma, Wenchao ; Miller, Owen D. ; Oskooi, Ardavan ; Schubert, Martin F. ; Wang, Fengwen ; Williamson, Ian A.D. ; Xue, Wenjin ; Zhou, You
in: Journal of the Optical Society of America B: Optical Physics, vol: 41, issue: 2, pages: A161-A176

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1364/JOSAB.506412

Vibroacoustic topology optimization for sound transmission minimization through sandwich structures

Cool, Vanessa ; Sigmund, Ole ; Aage, Niels ; Naets, Frank ; Deckers, Elke
in: Journal of Sound and Vibration, vol: 568

Type: Journal article (Peer reviewed)

Status: Published | Year: 2024 | DOI: https://doi.org/10.1016/j.jsv.2023.117959

3D-print og en krøllet coladåse gør os klogere på fremtidens grønne materialer

Brøns, Marie ; Wang, Fengwen ; Sigmund, Ole

Type: Net publication - Internet publication

Status: Published | Year: 2023

A first-order equivalent static loads algorithm for optimization of nonlinear static response

Stolpe, Mathias ; Pollini, Nicolò
in: Advances in Engineering Software, vol: 182

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.advengsoft.2023.103462

All-Silicon Topology Optimized Two-Photon Absorption Detector for On-Chip Interconnects

Kamel, Ayman N. ; Newman, Marcus R. A. ; Marchevsky, Andrey ; Christiansen, Rasmus E. ; Babar, Ali N. ; Kristensen, Philip Trøst ; Sigmund, Ole ; Stobbe, Søren ; Mørk, Jesper ; Yvind, Kresten
Presented at: 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1109/CLEO/Europe-EQEC57999.2023.10231604

A neighborhood search integer programming approach for wind farm layout optimization

Pérez-Rúa, Juan-Andreas ; Stolpe, Mathias ; Cutululis, Nicolaos Antonio
in: Wind Energy Science, vol: 8, issue: 9, pages: 1453-1473

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.5194/wes-8-1453-2023

A strategy for avoiding spurious localized buckling modes in topology optimization

Ferrari, Federico ; Sigmund, Ole
in: International Journal for Numerical Methods in Engineering, vol: 124, issue: 18, pages: 4118-4140

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1002/nme.7309

Augmented Lagrangian approach for multi-objective topology optimization of energy storage flywheels with local stress constraints

Kale, Vaishnavi ; Aage, Niels ; Secanell, Marc
in: Structural and Multidisciplinary Optimization, vol: 66

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1007/s00158-023-03693-8

Backscattering in Slow-Light Valley-Hall Photonic Topological Waveguides

Arregui, Guillermo ; Rosiek, Christian Anker ; Vladimirova, Anastasiia ; Albrechtsen, Marcus ; Lahijani, Babak Vosoughi ; Christiansen, Rasmus Ellebæk ; Stobbe, Søren
Presented at: 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1109/CLEO/Europe-EQEC57999.2023.10231356

Density-Based Topology Optimization in Method of Moments: Q-factor Minimization

Tucek, Jonas ; Capek, Miloslav ; Jelinek, Lukas ; Sigmund, Ole
in: IEEE Transactions on Antennas and Propagation, vol: 71, issue: 12, pages: 9738-9751

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1109/TAP.2023.3321373

Design complexity tradeoffs in topology optimization of forced convection laminar flow heat sinks

Rogié, Brice ; Andreasen, Casper Schousboe
in: Structural and Multidisciplinary Optimization, vol: 66, issue: 1

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1007/s00158-022-03449-w

Designing structures that maximize spatially averaged surface-enhanced Raman spectra

Yao, Wenjie ; Verdugo, Francesc ; Everitt, Henry O. ; Christiansen, Rasmus E. ; Johnson, Steven G.
in: Optics Express, vol: 31, issue: 3, pages: 4964-4977

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1364/OE.472646

Design of hierarchical microstructures with isotropic elastic stiffness

Yu, Xue ; Wang, Fengwen ; Luo, Zhen ; Kang, Zhan ; Wang, Yiqiang
in: Materials and Design, vol: 229

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.matdes.2023.111895

Efficient low-reflection fully etched vertical free-space grating couplers for suspended silicon photonics

Hansen, Søren Engelberth ; Arregui, Guillermo ; Babar, Ali Nawaz ; Albrechtsen, Marcus ; Lahijani, Babak Vosoughi ; Christiansen, Rasmus Ellebæk ; Stobbe, Søren
in: Optics Express, vol: 31, issue: 11, pages: 17424-17436

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1364/OE.485356

Experimental characterization of a shape optimized acoustic lens: Application to compact speakerphone design

Andersen, Peter Risby ; Lee, Gyeong-Tae ; Nielsen, Daniel Gert ; Kook, Junghwan ; Cutanda Henríquez, Vicente ; Aage, Niels ; Park, Yong-Hwa
in: Journal of the Acoustical Society of America, vol: 153, issue: 4, pages: 2351-2361

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1121/10.0017859

Experimental Realization of Extreme Light Confinement in an InP Nanocavity

Xiong, Meng ; Christiansen, Rasmus Ellebaek ; Schröder, Frederik ; Yu, Yi ; Casses, Laura Nevenka ; Semenova, Elizaveta ; Yvind, Kresten ; Stenger, Nicolas ; Sigmund, Ole ; Mork, Jesper
part of: 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2023
Presented at: 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1109/CLEO/Europe-EQEC57999.2023.10231567

Holistic computational design within additive manufacturing through topology optimization combined with multiphysics multi-scale materials and process modelling

Bayat, Mohamad ; Zinovieva, Olga ; Ferrari, Federico ; Ayas, Can ; Langelaar, Matthijs ; Spangenberg, Jon ; Salajeghe, Roozbeh ; Poulios, Konstantinos ; Mohanty, Sankhya ; Sigmund, Ole ; Hattel, Jesper
in: Progress in Materials Science, vol: 138

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.pmatsci.2023.101129

Hybrid achromatic microlenses with high numerical apertures and focusing efficiencies across the visible

Richards, Corey A. ; Ocier, Christian R. ; Xie, Dajie ; Gao, Haibo ; Robertson, Taylor ; Goddard, Lynford L. ; Christiansen, Rasmus E. ; Cahill, David G. ; Braun, Paul V.
in: Nature Communications, vol: 14, issue: 1

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1038/s41467-023-38858-y

Impact of figures of merit in photonic inverse design

Christiansen, Rasmus E. ; Kristensen, Philip Trøst ; Mørk, Jesper ; Sigmund, Ole
in: Optics Express, vol: 31, issue: 5, pages: 8363-8374

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1364/OE.482380

Interfacing free-space beams and suspended silicon photonic waveguides with a low back-reflection fully etched grating coupler

Hansen, Søren Engelberth ; Arregui Bravo, Guillermo ; Babar, Ali Nawaz ; Albrechtsen, Marcus ; Vosoughi Lahijani, Babak ; Christiansen, Rasmus Ellebæk ; Stobbe, Søren
Presented at: 2023 Micro and Nano Engineering Conference

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2023

Inverse design of compact and broadband nanophotonic beamsplitters

Hansen, Søren Engelberth ; Arregui Bravo, Guillermo ; Christiansen, Rasmus Ellebæk ; Stobbe, Søren
Presented at: XXIX International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2023

Inverse design of mechanical springs with tailored nonlinear elastic response utilizing internal contact

Bluhm, Gore Lukas ; Sigmund, Ole ; Poulios, Konstantinos
in: International Journal of Non-Linear Mechanics, vol: 157

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.ijnonlinmec.2023.104552

Inverse design of optical mode converters by topology optimization: tutorial

Christiansen, Rasmus Ellebæk
in: Journal of Optics, vol: 25

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1088/2040-8986/acdbdd

Measuring Propagation Loss in Slow-light Valley-Hall Photonic Topological Waveguides

Rosiek, Christian Anker ; Arregui, Guillermo ; Vladimirova, Anastasiia ; Albrechtsen, Marcus ; Lahijani, Babak Vosoughi ; Christiansen, Rasmus Ellebæk ; Stobbe, Søren
Presented at: 2023 Conference on Lasers and Electro-Optics (CLEO)

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1364/CLEO_FS.2023.JTU2A.146

Multi-material topology optimization for maximizing structural stability under thermo-mechanical loading

Wang, Yafeng ; Sigmund, Ole
in: Computer Methods in Applied Mechanics and Engineering, vol: 407

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.cma.2023.115938

Non-hierarchical architected materials with extreme stiffness and strength

Wang, Fengwen ; Brøns, Marie ; Sigmund, Ole
in: Advanced Functional Materials, vol: 33, issue: 13

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1002/adfm.202211561

Nonlinear factors in single and double backplate capacitive transducers

Printezis, Georgios ; Aage, Niels ; Lucklum, Frieder
part of: Proceedings of 10^th Convention of the European Acoustics Association, 2023
Presented at: 10th Convention of the European Acoustics Association

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2023

Observation of strong backscattering in valley-Hall photonic topological interface modes

Rosiek, Christian Anker ; Arregui, Guillermo ; Vladimirova, Anastasiia ; Albrechtsen, Marcus ; Vosoughi Lahijani, Babak ; Christiansen, Rasmus Ellebæk ; Stobbe, Søren
in: Nature Photonics, vol: 17, pages: 386-392

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1038/s41566-023-01189-x

On the Feasibility of using FPGA's for Efficient Topology Optimization

Hesse, Kasper ; Schoeberl, Martin ; Aage, Niels ; Traff, Erik
part of: 2023 26th Euromicro Conference on Digital System Design (DSD), pages: 242-250, 2024
Presented at: 26th Euromicro Conference on Digital System Design

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1109/DSD60849.2023.00043

Programming and physical realization of extreme three-dimensional responses of metastructures under large deformations

Li, Weichen ; Jia, Yingqi ; Wang, Fengwen ; Sigmund, Ole ; Zhang, Xiaojia Shelly
in: International Journal of Engineering Science, vol: 191

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.ijengsci.2023.103881

Quality Factor Minimization of Electrically Small Antennas by Density Topology Optimization

Tucek, Jonas ; Capek, Miloslav ; Jelinek, Lukas ; Sigmund, Ole
part of: Proceedings of the 17th European Conference on Antennas and Propagation (eucap 2023) , 2023
Presented at: 17^th European Conference on Antennas and Propagation

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.23919/EuCAP57121.2023.10133497

Self-bridging metamaterials surpassing the theoretical limit of Poisson's ratios

Zhang, Jinhao ; Xiao, Mi ; Gao, Liang ; Alù, Andrea ; Wang, Fengwen
in: Nature Communications, vol: 14, issue: 1

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1038/s41467-023-39792-9

Simple and efficient GPU accelerated topology optimisation: Codes and applications

Träff, Erik A. ; Rydahl, Anton ; Karlsson, Sven ; Sigmund, Ole ; Aage, Niels
in: Computer Methods in Applied Mechanics and Engineering, vol: 410

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.cma.2023.116043

Simultaneous shape and topology optimization of wings

Høghøj, Lukas C. ; Conlan-Smith, Cian ; Sigmund, Ole ; Andreasen, Casper Schousboe
in: Structural and Multidisciplinary Optimization, vol: 66, issue: 5

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1007/s00158-023-03569-x

Stress constrained topology optimization of energy storage flywheels using a specific energy formulation

Kale, Vaishnavi ; Aage, Niels ; Secanell, Marc
in: Journal of Energy Storage, vol: 61

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.est.2023.106733

Substructural FRF based reduction technique for nonlinear systems

Soleimani, Hossein ; Poulios, Konstantinos ; Brunskog, Jonas ; Aage, Niels
Presented at: 3rd International Nonlinear Dynamics Conference

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2023

Systematic design of 2D and 3D VibroAcoustic Fluidic Cavity Sensors Using Topology Optimization

Belahurau, Yauheni ; Aage, Niels ; Christiansen, Rasmus Ellebæk ; Lucklum, Frieder
part of: Proceedings of NOVEM 2023 , 2023
Presented at: Noise and Vibration

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2023

Topology optimization for structural mass reduction of direct drive electric machines

Hayes, Austin C. ; Träff, Erik A. ; Sørensen, Christian Vestergaard ; Willems, Sebastian Vedsø ; Aage, Niels ; Sigmund, Ole ; Whiting, Gregory L.
in: Sustainable Energy Technologies and Assessments, vol: 57

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.seta.2023.103254

Topology optimization of multiscale structures considering local and global buckling response

Christensen, Christoffer Fyllgraf ; Wang, Fengwen ; Sigmund, Ole
in: Computer Methods in Applied Mechanics and Engineering, vol: 408

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1016/j.cma.2023.115969

Tracking non-spherical particle position and orientation

Meyer, Knud Erik ; Brown Engsig, Marcus ; Andie Thiesen, Tobias ; Lundgaard, Christian
part of: Proceedings of the 15th International Symposium on Particle Image Velocimetry – ISPIV 2023, 2023
Presented at: 15th International Symposium on Particle Image Velocimetry

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2023

When is DiESL=ESL for linear dynamic response structural optimization?

Stolpe, Mathias
in: Structural and Multidisciplinary Optimization, vol: 66, issue: 4

Type: Journal article (Peer reviewed)

Status: Published | Year: 2023 | DOI: https://doi.org/10.1007/s00158-023-03495-y

3D shape optimization of loudspeaker cabinets for uniform directivity

Andersen, Peter Risby ; Cutanda Henríquez, Vicente ; Aage, Niels ; Kook, Junghwan
in: Structural and Multidisciplinary Optimization, vol: 65, issue: 12

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1007/s00158-022-03451-2

Aerodynamic Shape Optimization of Highly Nonplanar Raised and Drooped Wings

Conlan-Smith, Cian ; Ramos-García, Néstor ; Schousboe Andreasen, Casper
in: Journal of Aircraft, vol: 59, issue: 1, pages: 206-218

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.2514/1.C036403

Aeroelastic shape optimization of solid foam core wings subject to large deformations

Conlan-Smith, Cian ; Andreasen, Casper Schousboe
in: Structural and Multidisciplinary Optimization, vol: 65, issue: 6

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1007/s00158-022-03246-5

An open-source framework for large-scale transient topology optimization using PETSc

Kristiansen, Hansotto ; Aage, Niels
in: Structural and Multidisciplinary Optimization, vol: 65, issue: 10

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1007/s00158-022-03312-y

Buckling and yield strength estimation of architected materials under arbitrary loads

Andersen, Morten N. ; Wang, Yiqiang ; Wang, Fengwen ; Sigmund, Ole
in: International Journal of Solids and Structures, vol: 254-255

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1016/j.ijsolstr.2022.111842

Contact dynamics for micro acoustic devices

Soleimani, Hossein ; Aage, Niels ; Brunskog, Jonas ; Lucklum, Frieder
Presented at: DCAMM Symposium 2022

Type: Poster (Peer reviewed)

Status: Published | Year: 2022

De-homogenization of optimal 2D topologies for multiple loading cases

Jensen, Peter Dørffler Ladegaard ; Sigmund, Ole ; Groen, Jeroen P.
in: Computer Methods in Applied Mechanics and Engineering, vol: 399

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1016/j.cma.2022.115426

De-homogenization using Convolutional Neural Networks

Elingaard, Martin O. ; Aage, Niels ; Bærentzen, J. Andreas ; Sigmund, Ole
in: Computer Methods in Applied Mechanics and Engineering, vol: 388

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1016/j.cma.2021.114197

Design of a 3D phononic-fluidic sensor using shape optimization

Belahurau, Yauheni ; Aage, Niels ; Christiansen, Rasmus Ellebæk ; Lucklum, Frieder
Presented at: 48^th International Conference on Micro and Nano Engineering

Type: Conference abstract for conference

Status: Published | Year: 2022

Digital synthesis of free-form multimaterial structures for realization of arbitrary programmed mechanical responses

Li, Weichen ; Wang, Fengwen ; Sigmund, Ole ; Zhang, Xiaojia Shelly
in: Proceedings of the National Academy of Sciences of the United States of America, vol: 119, issue: 10

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1073/pnas.2120563119

Experimental verification of a novel hierarchical lattice material with superior buckling strength

Bluhm, Gore Lukas ; Christensen, Keld ; Poulios, Konstantinos ; Sigmund, Ole ; Wang, Fengwen
in: APL Materials, vol: 10, issue: 9

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1063/5.0101390

Fail-safe optimization of tubular frame structures under stress and eigenfrequency requirements

Dou, Suguang ; Stolpe, Mathias
in: Computers & Structures, vol: 258

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1016/j.compstruc.2021.106684

Including the power regulation strategy in aerodynamic optimization of wind turbines for increased design freedom

Iori, J. ; McWilliam, M. K. ; Stolpe, M.
in: Wind Energy, vol: 25, issue: 10, pages: 1791-1811

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1002/we.2769

Nanometer-scale photon confinement in topology-optimized dielectric cavities

Albrechtsen, Marcus ; Vosoughi Lahijani, Babak ; Christiansen, Rasmus Ellebæk ; Nguyen, Vy Thi Hoang ; Casses, Laura Nevenka ; Hansen, Søren Engelberth ; Stenger, Nicolas ; Sigmund, Ole ; Jansen, Henri ; Mørk, Jesper ; Stobbe, Søren
in: Nature Communications, vol: 13, issue: 1

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1038/s41467-022-33874-w

Numerical study of long-time growth of hydraulic fractures in a line drive

Mogensen, J. L. ; Niordson, C. F. ; Andreasen, C. S. ; Jørgensen, O.
in: Geomechanics for Energy and the Environment, vol: 29

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1016/j.gete.2021.100270

On benchmarking and good scientific practise in topology optimization

Sigmund, Ole
in: Structural and Multidisciplinary Optimization, vol: 65, issue: 11

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1007/s00158-022-03427-2

On the trade-off between mode volume and quality factor in dielectric nanocavities optimized for Purcell enhancement

Işiklar, Göktug ; Kristensen, Philip Trøst ; Mørk, Jesper ; Sigmund, Ole ; Christiansen, Rasmus Ellebæk
in: Optics Express, vol: 30, issue: 26, pages: 47304-47314

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1364/OE.474686

On the use of artificial neural networks in topology optimisation

Woldseth, Rebekka V. ; Aage, Niels ; Bærentzen, J. Andreas ; Sigmund, Ole
in: Structural and Multidisciplinary Optimization, vol: 65, issue: 10

Type: Review (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1007/s00158-022-03347-1

On the validity of numerical models for viscothermal losses in structural optimization for micro-acoustics

Andersen, Peter Risby ; Cutanda Henriquez, Vicente ; Aage, Niels
in: Journal of Sound and Vibration, vol: 547

Type: Journal article (Peer reviewed)

Status: Published | Year: 2022 | DOI: https://doi.org/10.1016/j.jsv.2022.117455

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