Pasi Ylä-Oijala

Staff Scientist

Research outputs

  1. 2019
  2. E-pub ahead of print
  3. Published

    Generalized Theory of Characteristic Modes

    Yläa-Oijala, P., 1 Jun 2019, In : IEEE Transactions on Antennas and Propagation. 67, 6, p. 3915-3923 9 p., 8668452.

    Research output: Contribution to journalArticleScientificpeer-review

  4. Published

    Enhanced discretization of surface integral equations for resonant scattering analysis of sharp-edged plasmonic nanoparticles

    Sekulic, I., Tzarouchis, D. C., Yla-Oijala, P., Ubeda, E. & Rius, J. M., 10 Apr 2019, In : Physical Review B. 99, 16, 12 p., 165417.

    Research output: Contribution to journalArticleScientificpeer-review

  5. Published

    Combined Source Integral Equation-Based Theory of Characteristic Modes for Impenetrable Bodies

    Ylä-Oijala, P. & Järvenpää, S., 1 Apr 2019, In : IEEE Transactions on Antennas and Propagation. 67, 4, p. 2825-2828 4 p., 8616755.

    Research output: Contribution to journalArticleScientificpeer-review

  6. Published

    Coupling of Characteristic Modes on PEC and Lossy Dielectric Structures

    Ylä-Oijala, P., Lehtovuori, A., Wallén, H. & Viikari, V., 1 Apr 2019, In : IEEE Transactions on Antennas and Propagation. 67, 4, p. 2565-2573 9 p., 8616833.

    Research output: Contribution to journalArticleScientificpeer-review

  7. Published

    Characteristic Mode Analysis of User's Effect on Mobile Handset Antennas

    Yla-Oijala, P., Lehtovuori, A., Luomaniemi, R. & Viikari, V., 1 Mar 2019, Proceedings of the European Conference on Antennas and Propagation. Institute of Electrical and Electronics Engineers, 8740275. (Proceedings of the European Conference on Antennas and Propagation).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  8. Published

    Generalized Theory of Characteristic Modes for non-PEC Media

    Yla-Oijala, P., Wallen, H., Tzarouchis, D. C., Jarvenpaa, S. & Sihvola, A., 1 Mar 2019, 2019 13th European Conference on Antennas and Propagation (EuCAP). IEEE, 8739514. (Proceedings of the European Conference on Antennas and Propagation).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  9. Published

    Subwavelength hexahedral plasmonic scatterers: History, symmetries, and resonant characteristics

    Tzarouchis, D., Ylä-Oijala, P. & Sihvola, A., 25 Feb 2019, In : Photonics. 6, 1, 14 p., 18.

    Research output: Contribution to journalArticleScientificpeer-review

  10. E-pub ahead of print
  11. Published

    Modeling of Resonating Closed Impedance Bodies with Surface Integral Equation Methods

    Yla-Oijala, P., Kong, B. & Jarvenpaa, S., Jan 2019, In : IEEE Transactions on Antennas and Propagation. 67, 1, p. 361 - 368

    Research output: Contribution to journalArticleScientificpeer-review

  12. 2018
  13. Published

    Resonances in small scatterers with impedance boundary

    Sihvola, A., Tzarouchis, D. C., Ylä-Oijala, P., Wallén, H. & Kong, B., 17 Dec 2018, In : Physical Review B. 98, 23, 6 p., 235417.

    Research output: Contribution to journalArticleScientificpeer-review

  14. Published

    Mie Scattering and Characteristic Modes of Lossy Dielectric Objects

    Wallén, H., Ylä-Oijala, P., Tzarouchis, D. C. & Sihvola, A., 24 Sep 2018, 2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018. Institute of Electrical and Electronics Engineers, 8471401

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  15. Published

    Properties of Hybridized Modes in Core-Shell Scatterers

    Sihvola, A., Tzarouchis, D. C., Yla-Oijala, P. & Wallen, H., 24 Sep 2018, 2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018. Institute of Electrical and Electronics Engineers, 8471610

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  16. Published

    Surface Integral Equation Formulation for Characteristic Modes of Lossy Dielectric Objects

    Yla-Oijala, P., Wallen, H., Tzarouchis, D. C. & Sihvola, A., 24 Sep 2018.

    Research output: Contribution to conferenceAbstractScientificpeer-review

  17. Published

    Theory of characteristic modes for impedance bodies

    Ylä-Oijala, P., Wallén, H., Kong, B. & Järvenpää, S., Aug 2018.

    Research output: Contribution to conferencePaperScientificpeer-review

  18. Published

    Surface Integral Equation Based Characteristic Mode Formulation for Penetrable Bodies

    Yla-Oijala, P., Wallen, H., Tzarouchis, D. C. & Sihvola, A., Jul 2018, In : IEEE Transactions on Antennas and Propagation. 66, 7, p. 3532-3539

    Research output: Contribution to journalArticleScientificpeer-review

  19. Published

    Characteristic Mode Equations for Impedance Surfaces

    Yla-Oijala, P., Lappalainen, J. & Jarvenpaa, S., Jan 2018, In : IEEE Transactions on Antennas and Propagation. 66, 1, p. 487-492 7 p.

    Research output: Contribution to journalArticleScientificpeer-review

  20. Published

    Analysis of Scatterers with Discontinuous Impedance Boundary Condition using Surface-Integral-Equation Method

    Kong, B. B., Yla-Oijala, P., Astorino, M. D., Wallen, H. & Sihvola, A., 2018, 2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials). Institute of Electrical and Electronics Engineers, p. 225-227 3 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  21. Published

    Plasmonic Eigenmodes on Regular Nano-Polyhedra: Case Study of Electrostatic and Dynamic Resonant Effects on Rounded Superquadric Solids

    Tzarouchis, D., Ylä-Oijala, P. & Sihvola, A., 2018, 2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials). Institute of Electrical and Electronics Engineers, p. 401-403

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  22. Published

    Resonances in Impedance-Boundary Spheres

    Sihvola, A., Tzarouchis, D. C., Ylä-Oijala, P., Wallén, H. & Kong, B. B., 2018, 2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials). Institute of Electrical and Electronics Engineers, p. 361-363 3 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  23. Published

    Spurious-Free Surface Integral Equation Characteristic Mode Formulation for Dielectric Bodies

    Ylä-Oijala, P., Tzarouchis, D., Wallén, H. & Sihvola, A., 2018, 2018 IEEE AP-S Symposium on Antennas and Propagation and URSI CNC/USNC Joint Meeting (AP-S/URSI 2018) Proceedings, July 8 - 13, 2018, Boston, Massachusetts, U.S.A. United States: IEEE, p. 2453-2454 (Digest of the IEEE Antennas and Propagation Society International Symposium).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  24. 2017
  25. Published

    Study of Plasmonic Resonances on Platonic Solids

    Tzarouchis, D. C., Ylä-Oijala, P. & Sihvola, A., Dec 2017, In : Radio Science. 52, 12, p. 1450–1457 8 p.

    Research output: Contribution to journalArticleScientificpeer-review

  26. Published

    Resonances of Characteristic Modes for Perfectly Conducting Objects

    Lappalainen, J., Yla-Oijala, P., Tzarouchis, D. C. & Sihvola, A., Oct 2017, In : IEEE Transactions on Antennas and Propagation. 65, 10, p. 5332-5339 8 p.

    Research output: Contribution to journalArticleScientificpeer-review

  27. Published

    Characteristic Mode Analysis of Plasmonic Nanoantennas

    Yla-Oijala, P., Tzarouchis, D. C., Raninen, E. & Sihvola, A., 1 May 2017, In : IEEE Transactions on Antennas and Propagation. 65, 5, p. 2165-2172 8 p., 7870620.

    Research output: Contribution to journalArticleScientificpeer-review

  28. Published

    Analysis and triggering of dark modes in plasmonic nanostructures with surface integral equations and theory of characteristic modes

    Ylä-Oijala, P., Tzarouchis, D. & Sihvola, A., 2017.

    Research output: Contribution to conferenceAbstractScientificpeer-review

  29. Published

    Light scattering characteristics of a small sphere: resonant and directive scattering conditions

    Tzarouchis, D., Ylä-Oijala, P. & Sihvola, A., 2017, 2017 Progress In Electromagnetics Research Symposium - Spring (PIERS). IEEE, p. 1503-1510

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  30. Published

    On the resonances of characteristic modes

    Ylä-Oijala, P., Lappalainen, J., Tzarouchis, D. & Sihvola, A., 2017, p. B12-2(1932).

    Research output: Contribution to conferencePaperScientificpeer-review

  31. Published

    Resonant bright and dark modes on plasmonic nanoscatterers: Characteristic modes for Platonic solids

    Tzarouchis, D., Ylä-Oijala, P. & Sihvola, A., 2017.

    Research output: Contribution to conferenceAbstractScientificpeer-review

  32. Published

    Resonant Scattering Characteristics of Homogeneous Dielectric Sphere

    Tzarouchis, D., Ylä-Oijala, P. & Sihvola, A., 2017, In : IEEE Transactions on Antennas and Propagation. 65, 6, p. 3184-3191 8 p., 7891061.

    Research output: Contribution to journalArticleScientificpeer-review

  33. Published

    Spectral behavior of radially anisotropic plasmonic nanospheres

    Sihvola, A., Tzarouchis, D., Ylä-Oijala, P. & Wallén, H., 2017, p. 1178. 1 p.

    Research output: Contribution to conferenceAbstractScientificpeer-review

  34. 2016
  35. Published

    Plasmonic properties and energy flow in rounded hexahedral and octahedral nanoparticles

    Tzarouchis, D., Ylä-Oijala, P., Ala-Nissilä, T. & Sihvola, A., 1 Dec 2016, In : Journal of the Optical Society of America B: Optical Physics. 33, 12, p. 2626-2633 8 p.

    Research output: Contribution to journalArticleScientificpeer-review

  36. Published

    Fast boundary element simulation of noise emission from vibrating surfaces

    Järvenpää, S., Huttunen, T., Vanne, A., Malinen, M., Roivainen, J. & Ylä-Oijala, P., Dec 2016, In : Rakenteiden Mekaniikka (Journal of Structural Mechanics). 49, 3, p. 137-150

    Research output: Contribution to journalArticleScientificpeer-review

  37. Published

    Unveiling the scattering behavior of small spheres

    Tzarouchis, D. C., Ylä-Oijala, P. & Sihvola, A., 12 Oct 2016, In : Physical Review B. 94, 14, 140301.

    Research output: Contribution to journalArticleScientificpeer-review

  38. Published

    Characteristic mode-surface integral equation analysis of plasmonic nanoparticles

    Ylä-Oijala, P., Raninen, E., Tzarouchis, D. C. & Sihvola, A., 19 Sep 2016, Proceedings of the 2016 URSI Commission B International Symposium on Electromagnetic Theory, EMTS 2016. Institute of Electrical and Electronics Engineers, p. 632-635 4 p. 7571476. (URSI International Symposium on Electromagnetic Theory).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  39. Published

    Effect of shape deformation of a patch antenna on its characteristic modes

    Honkala, M., Lehtovuori, A., Raninen, E. & Ylä-Oijala, P., 19 Sep 2016, Proceedings of the 2016 URSI Commission B International Symposium on Electromagnetic Theory, EMTS 2016 . Institute of Electrical and Electronics Engineers, p. 690-693 4 p. 7571492

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  40. Published

    MLFMA, PO and hybrid MLFMA-PO for impedance boundary condition

    Ylä-Oijala, P., Koivumäki, P. & Järvenpää, S., 19 Sep 2016, Proceedings of the 2016 URSI Commission B International Symposium on Electromagnetic Theory, EMTS 2016. Institute of Electrical and Electronics Engineers, p. 296-299 4 p. 7571378

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  41. Published

    On the spectrum and preconditioning of electromagnetic volume integral equations

    Markkanen, J., Ylä-Oijala, P. & Järvenpää, S., 19 Sep 2016, Proceedings of the 2016 URSI Commission B International Symposium on Electromagnetic Theory, EMTS 2016 . Institute of Electrical and Electronics Engineers, p. 834-837 4 p. 7571533

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  42. Published

    Plasmonic Modes on Rounded Hexahedral and Octahedral Nano-Antennas

    Tzarouchis, D. C., Ylä-Oijala, P. & Sihvola, A., 19 Sep 2016, Proceedings of the 2016 URSI Commission B International Symposium on Electromagnetic Theory, EMTS 2016 . Institute of Electrical and Electronics Engineers, p. 767-770 4 p. 7571514. (URSI International Symposium on Electromagnetic Theory).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  43. Published

    Current-Based Volume Integral Equation Formulation for Bianisotropic Materials

    Ylä-Oijala, P., Markkanen, J. & Järvenpää, S., 1 Aug 2016, In : IEEE Transactions on Antennas and Propagation. 64, 8, p. 3470-3477 8 p., 7471421.

    Research output: Contribution to journalArticleScientificpeer-review

  44. Published

    Conforming Testing of Electromagnetic Surface-Integral Equations for Penetrable Objects

    Ylä-Oijala, P., Kiminki, S. P. & Järvenpää, S., 1 Jun 2016, In : IEEE Transactions on Antennas and Propagation. 64, 6, p. 2348-2357 10 p., 7436796.

    Research output: Contribution to journalArticleScientificpeer-review

  45. Published

    Spectral properties of plasmonic nanoantennas: Comparison of quasistatic and full-wave analyses

    Sihvola, A., Tzarouchis, D. C. & Ylä-Oijala, P., 31 May 2016, 2016 10th European Conference on Antennas and Propagation, EuCAP 2016 . Institute of Electrical and Electronics Engineers, 7481784. (Proceedings of the European Conference on Antennas and Propagation).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  46. Published

    Shape effects on surface plasmons in spherical, cubic, and rod-shaped silver nanoparticles

    Tzarouchis, D. C., Ylä-Oijala, P., Ala-Nissilä, T. & Sihvola, A., 1 Apr 2016, In : APPLIED PHYSICS A-MATERIALS SCIENCE AND PROCESSING. 122, 4, 7 p., 298.

    Research output: Contribution to journalArticleScientificpeer-review

  47. Published

    On the applicability of discrete dipole approximation for plasmonic particles

    Vartia, O. S., Ylä-Oijala, P., Markkanen, J., Puupponen, S., Seppälä, A., Sihvola, A. & Ala-Nissilä, T., Jan 2016, In : Journal of Quantitative Spectroscopy and Radiative Transfer. 169, p. 23-35 13 p.

    Research output: Contribution to journalArticleScientificpeer-review

  48. Published

    Full Electrodynamic Resonant Modes on Subwavelength Spheroidal Nano-Antennas

    Tzarouchis, D. C., Manninen, T., Ylä-Oijala, P. & Sihvola, A., 2016, Proceedings of the 2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016. Institute of Electrical and Electronics Engineers, p. 559-560 2 p. 7695988. (Digest of the IEEE Antennas and Propagation Society International Symposium).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  49. Published

    Hybrid multilevel fast multipole algorithm-physical optics for impedance surfaces

    Ylä-Oijala, P., Koivumäki, P. & Järvenpää, S., 2016, In : IEEE Transactions on Antennas and Propagation. 64, 12, p. 5475-5478 7562546.

    Research output: Contribution to journalArticleScientificpeer-review

  50. Published

    Multipolar behavior of hollow plasmonic nanospheres: Obvious or mysterious?

    Sihvola, A., Tzarouchis, D. & Ylä-Oijala, P., 2016, Proceedings of the 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics: META'16. Zouhdi, S. & Nieto-Vesperinas, M. (eds.). Malaga, Spain, p. 1429-1430 2 p. (META proceedings).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  51. Published

    Numerical comparison of spectral properties of volume-integral-equation formulations

    Markkanen, J. & Ylä-Oijala, P., 2016, In : Journal of Quantitative Spectroscopy and Radiative Transfer. 178, p. 269–275

    Research output: Contribution to journalArticleScientificpeer-review

  52. 2015
  53. Published

    Uniform Surface Integral Equation Formulation for Mixed Impedance Boundary Conditions

    Ylä-Oijala, P., Kiminki, S. P., Wallén, H. & Sihvola, A., 1 Dec 2015, In : IEEE Transactions on Antennas and Propagation. 63, 12, p. 5718-5726 9 p., 7312425.

    Research output: Contribution to journalArticleScientificpeer-review

  54. Published

    Challenges in developing efficient Calderon preconditioners for resonating or high material contrast penetrable objects

    Ylä-Oijala, P. & Kiminki, S. P., 2015, In : Journal of Computational and Applied Mathematics. 289, p. 296-305

    Research output: Contribution to journalArticleScientificpeer-review

  55. Published

    Characterisation of the Electrodynamic Response of Plasmonic Nano-particles

    Tzarouchis, D., Ylä-Oijala, P., Sihvola, A. & Ala-Nissilä, T., 2015, 6th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META'15), New York, USA, August 4-7, 2015. p. 248-249

    Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

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