Publications

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Islam, R., Madsen, S. P. & Christensen, M. (2025). Enhancing magnetocrystalline anisotropy in W-type SrFe₁₈O₂₇ hexaferrite via tailored substitutions. Acta Materialia, 288, 120828. Article 120828. https://doi.org/10.1016/j.actamat.2025.120828

Islam, R., Madsen, S. P. & Christensen, M. (2024). Exploring the magnetic properties of W-type SrFe18O27 hexaferrite: Insights from a first-principles study. Physical Review B, 109(2), Article 024414. https://doi.org/10.1103/PhysRevB.109.024414

Mitra, T., singh, G., Darki, A. A., Madsen, S. P. & Dantan, A. R. (2024). Narrow-linewidth Fano microcavities with resonant subwavelength grating mirror. Optics Express, 32(9), 15667-15679. https://doi.org/10.1364/OE.521329

singh, G., Mitra, T., Madsen, S. P. & Dantan, A. R. (2024). Highly reflective and high-Q thin resonant subwavelength gratings. Journal of Physics: Photonics, 6(4), Article 045009. https://doi.org/10.1088/2515-7647/ad70e7

Darki, A. A., Dantan, A., Nygaard, J. V., Madsen, S. P., Parthenopoulos, A., Toft-Vandborg, C. & Vandborg, C. (2022). Optical spatial differentiation with ultrathin freestanding subwavelength gratings. In P. Schelkens & T. Kozacki (Eds.), Optics, Photonics and Digital Technologies for Imaging Applications VII Article 121380D SPIE - International Society for Optical Engineering. https://doi.org/10.1117/12.2621186

Darki, A. A., Madsen, S. P. & Dantan, A. R. (2022). Polarization-independent optical spatial differentiation with a doubly-resonant one-dimensional guided-mode grating. Optics Express, 30(3), 3962-3972. https://doi.org/10.1364/OE.450981

Traistaru, O. T. L., Shyam, P., Christensen, M. & Madsen, S. P. (2022). Optimizing the energy product of exchange-coupled soft/hard Zn_0.2Fe_2.8O₄/SrFe₁₂O₁₉magnets. Journal of Applied Physics, 132(16), Article 163904. https://doi.org/10.1063/5.0103242

Christiansen, J., Vester-Petersen, J., Nielsen, S. R., Møller, S., E. Christiansen, R., Sigmund, O., Madsen, S. P., Balling, P. & Julsgaard, B. (2020). Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures: Toward high-efficient silicon-based photovoltaics. Solar Energy Materials and Solar Cells, 208, Article 110406. https://doi.org/10.1016/j.solmat.2020.110406

Lakhotiya, H., Madsen, S. P., Nielsen, S. R., Vester-Petersen, J., Iversen, B. B., Balling, P. & Julsgaard, B. (2020). Improving Upconversion Efficiency by Photon Management in Self-Assembled Core/Shell Nanocrystal Films. The Journal of Physical Chemistry Part C, 124(41), 22357–22365. https://doi.org/10.1021/acs.jpcc.0c05179

Madsen, S. P., Christiansen, J., E. Christiansen, R., Vester-Petersen, J., Møller, S., Lakhotiya, H., Nazir, A., Eriksen , E. H., Nielsen, S. R., Sigmund, O., Lissau, J. S., Destouesse, E., Madsen, M., Julsgaard, B. & Balling, P. (2020). Improving the efficiency of upconversion by light concentration using nanoparticle design. Journal of Physics D: Applied Physics, 53(7), Article 073001. https://doi.org/10.1088/1361-6463/ab5553

Christiansen, J., Lakhotiya, H., Eriksen, E., Madsen, S. P., Balling, P. & Julsgaard, B. (2019). Analytical model for the intensity dependence of 1500 nm to 980 nm upconversion in Er ³⁺: A new tool for material characterization. Journal of Applied Physics, 125(4), Article 043106. https://doi.org/10.1063/1.5064409

Christiansen, R. E., Vester-Petersen, J., Madsen, S. P. & Sigmund, O. (2019). A non-linear material interpolation for design of metallic nano-particles using topology optimization. Computer Methods in Applied Mechanics and Engineering, 343, 23-39. https://doi.org/10.1016/j.cma.2018.08.034

Eriksen , E. H., Madsen, S. P., Julsgaard, B., Hofmann, C. L. M., Goldschmidt, J. C. & Balling, P. (2019). Enhanced upconversion via plasmonic near-field effects: Role of the particle shape. Journal of Optics, 21(3), Article 035004. https://doi.org/10.1088/2040-8986/ab0272

Balling, P., Christiansen, J., Christiansen, R. E., Eriksen, E., Lakhotiya, H., Mirsafaei, M., Moller, S. H., Nazir, A., Vester-Petersen, J., Jeppesen, B. R., Jensen, P. B., Hansen, J. L., Ram, S. K., Sigmund, O., Madsen, M., Madsen, S. P. & Julsgaard, B. (2018). Improving the efficiency of solar cells by upconverting sunlight using field enhancement from optimized nano structures. Optical Materials, 83, 279-289. https://doi.org/10.1016/j.optmat.2018.06.038

Eriksen, E. H., Nazir, A., Balling, P., Vester-Petersen, J., Christiansen, R. E., Sigmund, O. & Madsen, S. P. (2018). Dose regularization via filtering and projection: An open-source code for optimization-based proximity-effect-correction for nanoscale lithography. Microelectronic Engineering, 199, 52-57. https://doi.org/10.1016/j.mee.2018.07.013

Hamed, T. A., Adamovic, N., Aeberhard, U., Alonso-Alvarez, D., Amin-Akhlaghi, Z., Auf der Maur, M., Beattie, N., Bednar, N., Berland, K., Birner, S., Califano, M., Capan, I., Cerne, B., Chilibon, I., P. Connolly, J., Cortes Juan, F., Coutinho, J., David, C., Deppert, K. ... Zarbakhsh, J. (2018). Multiscale in modelling and validation for solar photovoltaics. EPJ Photovoltaics, 9(10), Article 10. https://doi.org/10.1051/epjpv/2018008

Moller, S. H., Vester-Petersen, J., Nazir, A., Eriksen, E. H., Julsgaard, B., Madsen, S. P. & Balling, P. (2018). Near-field marking of gold nanostars by ultrashort pulsed laser irradiation: experiment and simulations. Applied Physics A: Materials Science & Processing, 124(2), Article 210. https://doi.org/10.1007/s00339-018-1615-4

Vester-Petersen, J., Madsen, S. P., Sigmund, O., Balling, P., Julsgaard, B. & E. Christiansen, R. (2018). Field-enhancing photonic devices utilizing waveguide coupling and plasmonics - a selection rule for optimization-based design. Optics Express, 26(18), A788-A795. https://doi.org/10.1364/OE.26.00A788

Christiansen, R. E., Petersen, J. V., Madsen, S. P. & Sigmund, O. (2017). Topology optimization of nanoparticles for localized electromagnetic field enhancement. In J. Piprek & M. Willatzen (Eds.), 17th International Conference on Numerical Simulation of Optoelectronic Devices: NUSOD 2017 (pp. 3-4). Article 8009962 IEEE. https://doi.org/10.1109/NUSOD.2017.8009962

Eriksen, E., Julsgaard, B., Madsen, S. P., Lakhotiya, H., Nazir, A. & Balling, P. (2017). Particle-particle interactions in large, sparse arrays of randomly distributed plasmonic metal nanoparticles: a two-particle model. Optics Express, 25(16), 19354-19359. https://doi.org/10.1364/OE.25.019354

Vester-Petersen, J., Christiansen, R. E., Julsgaard, B., Balling, P., Sigmund, O. & Madsen, S. P. (2017). Topology optimized gold nanostrips for enhanced near-infrared photon upconversion (vol 111, 133102, 2017). Applied Physics Letters, 111(15), Article 159901. https://doi.org/10.1063/1.4998552

Eriksen, E., Desta, D., Bellettato, M., Rizzoli, R., Summonte, C., Jeppesen, B. R., Jensen, P. B., Madsen, S. P., Ram, S., Larsen, A. N. & Balling, P. (2016). Photovoltaic-Performance-Enhancing Patch with Combined Light Trapping and Spectral Upconverting Effect. EU PVSEC Conference Proceedings, 66-68. https://doi.org/10.4229/EUPVSEC20162016-1CO.9.2

Lakhotiya, H., Nazir, A., Madsen, S. P., Christiansen, J., Eriksen, E., Vester-Petersen, J., Johannsen, S. R., Jeppesen, B. R., Balling, P., Larsen, A. N. & Julsgaard, B. (2016). Plasmonically enhanced upconversion of 1500 nm light via trivalent Er in a TiO2 matrix. Applied Physics Letters, 109(26), Article 263102. https://doi.org/10.1063/1.4972785

Johannsen, S. R., Madsen, S. P., Jeppesen, B. R., Nygaard, J. V., Julsgaard, B., Balling, P. & Nylandsted Larsen, A. (2015). Up-conversion enhancement in Er3+ doped TiO2 through plasmonic coupling: Experiments and finite-element modeling. Applied Physics Letters, 106. https://doi.org/10.1063/1.4907415

Madsen, S. P., Johannsen, S. R., Jeppesen, B. R., Nygaard, J. V., Jensen, P. B., Chevallier, J., Julsgaard, B., Balling, P. & Larsen, A. N. (2015). Optimizing Plasmonically Enhanced Upconversion. Poster session presented at SiliconPV 2015, Konstanz , Germany.

Madsen, S. P., Johannsen, S. R., Jeppesen, B. R., Nygaard, J. V., Jensen, P. B., Chevallier, J., Julsgaard, B., Balling, P. & Larsen, A. N. (2015). Optimizing Plasmonically Enhanced Upconversion. Energy Procedia, 77, 478-486. https://doi.org/10.1016/j.egypro.2015.07.068

Petkov , K. P., Puton, M., Madsen, S. P., Veje, C. & Willatzen, M. (2014). Pressure drop calculation using a one-dimensional mathematical model for two-phase flow through an orifice: Comparison with experiments. International Journal of Heat and Mass Transfer, 2(3). http://www.praiseworthyprize.org/jsm/index.php?journal=ireheat&page=article&op=view&path%5B%5D=16322-

Barettin, D., Madsen, S. P., Lassen, B. & Willatzen, M. (2012). Computational methods for electromechanical fields in nanostructures. Communications in Computational Physics, 11(3), 797-830. https://doi.org/10.4208/cicp.111110.110411a

Madsen, S. P., Veje, C. & Willatzen, M. (2012). Dynamic modeling of phase crossings in two-phase flow. Communications in Computational Physics, 12(4), 1129-1147. https://doi.org/10.4208/cicp.190511.111111a

Alstrøm, T. S., Sørensen, M. P., Pedersen, N. F. & Madsen, S. (2011). Magnetic Flux Lines in Complex Geometry Type-II Superconductors Studied by the Time Dependent Ginzburg-Landau Equation. Acta Applicandae Mathematicae, 115, 63-74. https://doi.org/10.1007/s10440-010-9580-8

Barettin, D., Madsen, S., Lassen, B. & Willatzen, M. (2011). Comparison of Atomistic and Continuum Quantum-Dot Elastic Models and Implications for Optoelectronic Properties. A I P Conference Proceedings Series, 1399, 445.

Willatzen, M., Lassen, B., Madsen, S. & Barettin, D. (2011). Strain and piezoelectric effects in quantum-dot structures. Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD, 167-168. https://doi.org/10.1109/NUSOD.2011.6041198

Barettin, D., Madsen, S., Lassen, B. & Willatzen, M. (2010). Comparison of wurtzite atomistic and piezoelectric continuum strain models: Implications for the electronic band structure. Superlattices and Microstructures, (1), 134.

Madsen, S. P. & Pedersen, N. F. (2010). Stacked Josephson Junctions. In V. Moshchalkov, R. Woerderweber & W. Lang (Eds.), Nanoscience and engineering in superconductivity (pp. 163-186). Springer.

Madsen, S., Pedersen, N. F. & Christiansen, P. L. (2010). Stacked Josephson Junctions. Physica C: Superconductivity and its Applications, 470(19), 822-826. https://doi.org/doi:10.1016/j.physc.2010.02.061

Veje, C., Madsen, S. & Willatzen, M. (2010). Efficient Numerical Solution of One-Dimensional Governing Equations for Evaporating Flow in a Tube. Paper presented at 7
th International Conference on Multiphase Flow, Tampa, Florida, United States. https://pure.au.dk/admin/files/55478332/ICMF_Paper

Madsen, S., Veje, C. & Willatzen, M. (2009). IMPLEMENTATION OF THE KURGANOV-TADMOR HIGH RESOLUTION SEMI-DISCRETE CENTRAL SCHEME FOR NUMERICAL SOLUTION OF THE EVAPORATION PROCESS IN DRY EXPANSION EVAPORATORS. In SIMS 50 - Modelling and Simulation of Energy Technology SIMS.

Madsen, S. P. & Jensen, F. (2009). Locating seam minima for macromolecular systems. Theoretical Chemistry Accounts, 123(5-6), 477-485. https://doi.org/10.1007/s00214-009-0567-3

Pedersen, N. F. & Madsen, S. P. (2009). THz Generation Using Fluxon Dynamics in High Temperature Superconductors. I E E E Transactions on Applied Superconductivity, 19(3), 726 - 729. https://doi.org/10.1109/TASC.2009.2018770

Madsen, S., Pedersen, N. F. & Christiansen, P. L. (2008). Repulsive fluxons in a stack of Josephson junctions perturbed by a cavity. Physica C: Superconductivity and its Applications, 468(7-10), 649-653.

Madsen, S. P., Pedersen, N. F. & Grønbech-Jensen, N. (2007). Long Josephson Junction Stack Coupled to a Cavity. I E E E Transactions on Applied Superconductivity, 17(2), 926 - 929. https://doi.org/10.1109/TASC.2007.898049

Pedersen, N. F. & Madsen, S. P. (2006). Search for in-phase Josephson vortex solutions in BSCCO type junctions: Modelling and numerical simulations. Superconductor Science & Technology, 20(2), 1-5. https://doi.org/10.1088/0953-2048/20/2/S01

Pedersen, N. F. & Madsen, S. P. (2006). Search for the in-phase flux flow mode in stacked Josephson junctions. Physica C: Superconductivity and its Applications, 437–438, 262–266. https://doi.org/10.1016/j.physc.2005.12.037

Madsen, S. P., B. Gaididei, Y., Christiansen, P. L. & Pedersen, N. F. (2005). Domain walls and textured vortices in a two-component Ginzburg-Landau model. Physics Letters A, 344(6), 432-440. https://doi.org/10.1016/j.physleta.2005.06.095

Madsen, S. P. & Grønbech-Jensen, N. (2005). Microwave induced fluxon bunching in weakly coupled Josephson junctions. Physical Review B, 71(13), Article 132506. https://doi.org/10.1103/PhysRevB.71.132506

Madsen, S. P. & Pedersen, N. F. (2005). Numerical Simulations of Flux Flow in Stacked Josephson Junctions. Physical Review B - Condensed Matter and Materials Physics, 72(13), Article 134523. https://doi.org/10.1103/PhysRevB.72.134523

Pedersen, N. F. & Madsen, S. P. (2005). Microwave oscillator based on an intrinsic BSCCO-type Josephson junction. I E E E Transactions on Applied Superconductivity, 15(2), 948 - 951. https://doi.org/10.1109/TASC.2005.850131

Madsen, S. P. & Pedersen, N. F. (2004). Fluxon Modes in Stacked Josephson Junctions - The Role of Linear Modes. Physical Review B, 69(6), Article 064507. https://doi.org/10.1103/PhysRevB.69.064507

Madsen, S. P., Filatrella, G. & Pedersen, N. F. (2004). Interaction between a BSCCO-type intrinsic Josephson junction and a microwave cavity. European Physical Journal B. Condensed Matter and Complex Systems, 40(2), 209-215. https://doi.org/10.1140/epjb/e2004-00259-9

Madsen, S. P., B. Gaididei, Y., Christiansen, P. L. & Pedersen, N. F. (2004). Vortices in Two-Component Ginzburg-Landau Theory. In Proceedings, Plasma 2004 Conference in Tsukuba, Japan (II-128 ed.)

Displaying results 1 to 50 out of 54

Revised 13.11.2025

Søren Peder Madsen