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Publications

Preprints

  1. Observation of Toroidal Pulses of Light
    A. Zdagkas, Y. Shen, C. McDonnell, J. Deng, G. Li, T. Ellenbogen, N. Papasimakis, N. I. Zheludev
    arXiv:2102.03636 (2021) - arXiv
  2. Spatio-temporal characterization of ultrashort vector pulses
    A. Zdagkas, V. Nalla, N. Papasimakis and N. I. Zheludev
    arXiv:2101.11651 (2021) - arXiv

Publications

Articles

  1. Measures of space-time nonseparability of electromagnetic pulses
    Y. Shen, A. Zdagkas, N. Papasimakis, and N. I. Zheludev
    Phys. Rev. Research (3), 013236 (2021) doi: 10.1103/PhysRevResearch.3.013236 - pdf
  2. Space-time nonseparable pulses: Constructing isodiffracting donut pulses from plane waves and single-cycle pulses
    A. Zdagkas, N. Papasimakis, V. Savinov, and N. I. Zheludev
    Phys. Rev. A 102, 063512 (2020) doi: 10.1103/PhysRevA.102.063512 - pdf
  3. Singularities in the flying electromagnetic doughnuts
    A. Zdagkas, N. Papasimakis, V. Savinov, M. R. Dennis and N. I. Zheludev
    Nanophotonics 8 (8), 1379-1385 (2019) doi: 10.1515/nanoph-2019-0101 - pdf
  4. Roadmap on metasurfaces
    O. Quevedo-Teruel1, H. Chen, A. Díaz-Rubio, G. Gok, A. Grbic, G. Minatti, E. Martini, S. Maci, G. V. Eleftheriades, M. Chen, N. I. Zheludev, N. Papasimakis, S. Choudhury, Z. A. Kudyshev, S. Saha, H. Reddy, A. Boltasseva, V. M. Shalaev, A. V. Kildishev, D. Sievenpiper, C. Caloz, A. Alù , Q. He, L. Zhou, G. Valerio, E. Rajo-Iglesias, Z. Sipus, F. Mesa, R. Rodríguez-Berral, F. Medina, V. Asadchy, S. Tretyakov and C. Craeye
    J. Opt. 21, 073002 (2019) doi: 10.1088/2040-8986/ab161d - pdf
  5. Optical anapoles
    V. Savinov, N. Papasimakis, D.P. Tsai & N.I. Zheludev
    Comms. phys. 2, 69 (2019) doi: 10.1038/s42005-019-0167-z - pdf
  6. Point-dipole approximation for small systems of strongly coupled radiating nanorods
    D. W. Watson, S. D. Jenkins, V. A. Fedotov, and J. Ruostekoski
    Sci. Rep. 9, 5707 (2019) doi: 10.1038/s41598-019-41327-6 - pdf
  7. Electromagnetic sources beyond common multipoles
    N. A. Nemkov, A. A. Basharin, and V. A. Fedotov
    Phys. Rev. A 98, 023858 (2018) doi: 10.1103/PhysRevA.98.023858 - pdf
  8. Pulse generation scheme for flying electromagnetic doughnuts
    N. Papasimakis, T. Raybould, V. A. Fedotov, D. P. Tsai, I. Youngs, and N. I. Zheludev
    Phys. Rev. B 97 201409(R) (2018) doi: 10.1103/PhysRevB.97.201409 - pdf

    [Featured in Physics, http://physics.aps.org]
  9. Optical anapole metamaterial
    P. C. Wu, C. Y. Liao, V. Savinov, T. L. Chung, W. T. Chen, Y. W. Huang, P. R. Wu, Y. H. Chen, A. Q. Liu, N. I. Zheludev, and D. P. Tsai
    ACS Nano 12(2), 1920–1927 (2018) doi: 10.1021/acsnano.7b08828
  10. Exciting dynamic anapoles with electromagnetic doughnut pulses
    T. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, and N. I. Zheludev
    Appl. Phys. Lett. 111, 081104 (2017) doi: 10.1063/1.4999368 - pdf

    [Apl. Phys. Lett. cover page, pdf]
  11. Nonradiating sources, dynamic anapole, and Aharonov-Bohm effect
    N. A. Nemkov, A. A. Basharin, and V. A. Fedotov
    Phys. Rev. B 95, 165134 (2017) doi: 10.1103/PhysRevB.95.165134 - pdf
  12. Coherent selection of invisible high-order electromagnetic excitations
    M. L. Tseng, X. Fang, V. Savinov, P. C. Wu, J. Y. Ou, N. I. Zheludev, and D. P. Tsai
    Sci. Rep. 7, 44488 (2017) doi: 10.1038/srep44488 - pdf
  13. Coherent excitation-selective spectroscopy of multipole resonances
    X. Fang, M. L. Tseng, D. P. Tsai, and N. I. Zheludev
    Phys. Rev. Appl. 5, 014010 (2016) doi: 10.1103/PhysRevApplied.5.014010 - pdf
  14. Sharp toroidal resonances in planar terahertz metasurfaces
    M. Gupta, V. Savinov, N. Xu, L. Cong, G. Dayal, S. Wang, W. Zhang, N. I. Zheludev, and R. Singh
    Adv. Mater. 28 (37), 8206 (2016) doi: 10.1002/adma.201601611 - free access
  15. Toroidal circular dichroism
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Kuprov, I. J. Youngs, W. T. Chen, D. P. Tsai, and N. I. Zheludev
    Phys. Rev. B 94(3), 035119 (2016) doi: 10.1103/PhysRevB.94.035119 - pdf
  16. Toroidal dipole excitations in metamolecules formed by interacting plasmonic nanorods
    D. W. Watson, S. D. Jenkins, J. Ruostekoski, V. A. Fedotov, and N. I. Zheludev
    Phys. Rev. B 93, 125420 (2016) doi: 10.1103/PhysRevB.93.125420 - pdf
  17. Electromagnetic toroidal excitations in matter and free space
    N. Papasimakis, V. Fedotov, V. Savinov, T. A. Raybould, and N. I. Zheludev
    Nat. Mater. 15, 263 (2016) doi: 10.1038/NMAT4563 - free access
  18. Focused electromagnetic doughnut pulses and their interaction with interfaces and nanostructures
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. J. Youngs, and N. I. Zheludev
    Opt. Express 24(4), 3150 (2016) doi: 10.1364/OE.24.003150 - pdf
  19. Dielectric metamaterials with toroidal dipolar response
    A. A. Basharin, M. Kafesaki, E. N. Economou, C. M. Soukoulis, V. A. Fedotov, V. Savinov, N. I. Zheludev
    Phys. Rev. X 5, 011036 (2015) doi: 10.1103/PhysRevX.5.011036 - pdf
  20. Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials
    V. Savinov, V. A. Fedotov, and N. I. Zheludev
    Phys. Rev. B 89, 205112 (2014) doi: 10.1103/PhysRevB.89.205112 - pdf
  21. Resonant transparency and non-trivial non-radiating excitations in toroidal metamaterials
    V. A. Fedotov, A. V. Rogacheva, V. Savinov, D. P. Tsai, N. I. Zheludev
    Sci. Rep. 3, 2967 (2013) doi: 10.1038/srep02967 - pdf
  22. Toroidal lasing spaser
    Y. W. Huang, W. T. Chen, P. C. Wu, V. A. Fedotov, N. I. Zheludev and D. P. Tsai
    Sci. Rep. 2, 1237 (2013) doi: 10.1038/srep01237 - pdf
  23. Plasmonic toroidal resonance at optical frequencies
    Y. W. Huang, W. T. Chen, P. C. Wu, Y. Z. Ho, D. P. Tsai, V. Fedotov, V. Savinov, N. I. Zheludev and Y. F. Chau
    SPIE Newsroom (2012) doi: 10.1117/2.1201205.004193 - pdf
  24. Design of plasmonic toroidal metamaterials at optical frequencies
    Y. W. Huang, W. T. Chen, P. C. Wu, V. Fedotov, V. Savinov, Y. Z. Ho, Y.F. Chau, N. I. Zheludev, and D. P. Tsai
    Opt. Express 20(2), 1760 (2012) doi: 10.1364/OE.20.001760 - pdf
  25. Toroidal dipolar response in a metamaterial
    T. Kaelberer, V. A. Fedotov, N. Papasimakis, D. P. Tsai, and N. I. Zheludev
    Science 330, 1510 (2010) doi: 10.1126/science.1197172
  26. Gyrotropy of a metamolecule: wire on a torus
    N. Papasimakis, V. A. Fedotov, K. Marinov, and N. I. Zheludev
    Phys. Rev. Lett. 103, 093901 (2009) doi: 10.1103/PhysRevLett.103.093901 - pdf
  27. On the aromagnetism and anapole moment of anthracene nanocrystals
    V. A. Fedotov, K. Marinov, A. D. Boardman, and N. I. Zheludev
    New J. Phys. 9, 95 (2007) doi: 10.1088/1367-2630/9/4/095 - pdf
  28. Toroidal metamaterial
    K. Marinov, A. D. Boardman, V. A. Fedotov, and N. Zheludev
    New J. Phys. 9, 324 (2007) doi: 10.1088/1367-2630/9/9/324 - pdf
  29. Dispersion properties of nonradiating configurations: finite-difference time-domain modeling
    A. D. Boardman, K. Marinov, N. Zheludev, and V. A. Fedotov
    Phys. Rev. E 72(3), 036603 (2005) doi: 10.1103/PhysRevE.72.036603 - pdf

Conferences

  1. More coming soon...
  2. Excitation and Detection of Toroidal and Anapole Modes
    N. Papasimakis, R. Kumar, A. Zdagkas, N. I. Zheludev
    ICEAA-IEEE APWC-USNC URSI RSM 2021, Honolulu, Hawaii, USA, August 9-13, 2021
  3. Supertoroidal Skyrmionic Light Pulses
    Y. Shen, Y. Hou, A. Zdagkas, N. Papasimakis and N. I. Zheludev
    CLEO/Europe-EQEC 2021 Virtual Meeting, 21 - 25 June 2021
  4. Skyrmionic Supertoroidal Light Pulses
    Y. Shen, Y. Hou, A. Zdagkas, N. Papasimakis, and N. I. Zheludev
    CLEO 2021 Virtual Conference, 9 - 14 May 2021
  5. (Poster) State Tomography of Space-Time “Entangled” Ultrafast Optical Pulses
    Y. Shen, A. Zdagkas, S. Pidishety, N. Papasimakis, and N. I. Zheludev
    CLEO 2021 Virtual Conference, 9 - 14 May 2021
  6. Observation of Toroidal Light Pulses
    A. Zdagkas, Y. Shen, S. Pidishety, C. McDonnell, J. Deng, G. Li, N. Papasimakis T. Ellenbogen and N. I. Zheludev
    CLEO 2021 Virtual Conference, 9 - 14 May 2021
  7. Space-Time Non-Separability of Complex Electromagnetic Fields Generated by Metasurfaces
    Y. Shen, A. Zdagkas, N. Papasimakis and N. I. Zheludev
    Metamaterials 2020 (Virtual Conference), 28 Sept – 01 Oct 2020
  8. Quantum-analogous measures for space-time non-separable light
    Y. Shen, A. Zdagkas, N. Papasimakis and N. I. Zheludev
    Photon 2020 (virtual conference), 1-4 Sep 2020
  9. (invited) Metamaterials and topological non-separable light pulses
    N. Papasimakis, A. Zdagkas, Y. Hou, O. Buchnev, and N. I. Zheludev
    SPIE Optics & Photonics 2020, Digital Forum, 23 - 27 Aug 2020
  10. Generation of Topological Space-Time Non-Separable Light Pulses
    A. Zdagkas, Y. Hou, V. Savinov, H. Zhang, O. Buchnev, N.Papasimakis and N. I. Zheludev
    CLEO 2020 Virtual Conference, 11-15 May 2020
  11. (plenary)Metamaterials, Anapoles and Flying Donuts
    N. I. Zheludev
    IONS 2020, Delhi, India, 28 Feb-3 Mar 2020
  12. Metamaterials for Generating Space-Time Coupled Few-Cycle Pulses
    A. Zdagkas, H. Zhang, T. Pu, V. Savinov, N. Papasimakis and N. I. Zheludev
    Metamaterials'2019, Rome, Italy, 16 - 21 Sep 2019
  13. (invited) Anapoles and flying doughnuts
    N. Papasimakis, V. Savinov, A. Zdagkas, and N. I. Zheludev
    ICEAA 2019, Granada, Spain, 9 - 13 Sep 2019
  14. (invited) Electrodynamics beyond common multipoles
    V. A. Fedotov
    ICEAA-IEEE APWC 2019, Granada, Spain, 9 - 13 Sep 2019
  15. (invited) Radiation (-less) sources beyond common multipoles
    V. A. Fedotov
    Metanano 2019, St. Petersburg, Russia, 15-19 July 2019
  16. (tutorial) Metamaterials, anapoles and flying donuts
    N. I. Zheludev
    CLEO Europe - EQEC 2019, Munich, Germany 23 - 27 Jun 2019
  17. (poster) A topologically robust formation of broadband vortices propagating at the speed of light
    A. Zdagkas, V. Savinov, N. Papasimakis, and N. I. Zheludev
    CLEO Europe - EQEC 2019, Munich, Germany 23 - 27 Jun 2019
  18. Generation of electromagnetic doughnut pulses with a singular metamaterial converter
    A. Zdagkas, N. Papasimakis, V. Nalla, H. Zhang, O. Buchnev, and N. I. Zheludev
    Nanometa 2019, Seefeld, Austria, 3 - 6 Jan 2019
  19. (poster) Solvatochromic spectroscopy of metamaterials
    V. Savinov, W. Y. Tsai, J. Y. Ou, D. P. Tsai, and N. I. Zheludev
    Nanometa 2019, Seefeld, Austria, 3 - 6 Jan 2019
  20. (invited) Seeing the invisible: Direct detection of electric, toroidal and anapoles Dipoles
    V. Savinov, W. Y. Tsai, J. Y. Ou, D. P. Tsai, and N. I. Zheludev
    Optics 2018, Annual Meeting of Taiwan Photonics Society, Taiwan, 6-8 Dec 2018
  21. (invited) Metamaterials, anapoles and flying donuts
    N. I. Zheludev
    EOS Waves in Complex Photonic Media Conference Capri, Italy, 4-7 June 2018
  22. Launching electromagnetic donuts: Non-transverse electromagnetic pulses
    A. Zdagkas, P. Moitra, O. Buchnev, N. Papasimakis, and N. I. Zheludev
    CLEO 2018, San Jose, CA, USA, 13-18 May 2018
  23. (poster) Breaking up the anapole: or How to separate toroidal and electric dipole excitations in matter
    V. Savinov, W. Y. Tsai, D. P. Tsai, and N. I. Zheludev
    CLEO 2018, San Jose, CA, USA, 13-18 May 2018
  24. (Keynote) Metamaterials, anapoles and flying donuts
    N. I. Zheludev
    PIERS 2017, Singapore, Singapore, 19 - 22 Nov 2017
  25. (invited) Plasmonic toroidal excitation with engineering metamaterials
    P. C. Wu, H. Hsiao, C. Y. Liao, T. L. Chung, P. R. Wu, V. Savinov, N. I. Zheludev,
    SPIE Optics & Photonics 2017, San Diego, CA, USA, 06 - 10 Aug 2017
  26. (plenary) Metamaterials, anapoles and flying donuts
    N. I. Zheludev
    META2017, Seoul, South Korea, 25 - 28 Jul 2017
  27. Generation of electromagnetic doughnuts
    N. Papasimakis, T. A. Raybould, P. Moitra, V. A. Fedotov, I. Youngs, and N. I. Zheludev
    CLEO Europe - EQEC 2017 , Munich, Germany 25 - 29 Jun 2017
  28. (poster) Engineering toroidal metamaterial with anapole mode
    T. L. Chung , P. C. Wu, C. Liao, W. T. Chen, Y. Huang, P. R. Wu, Y. Chen, V. Savinov, N. I. Zheludev, and D. P. Tsai
    8th International Conference on Surface Plasmon Photonics (SPP8), Taipei, Taiwan, 22-26 May 2017
  29. (invited) Toroidal metamaterials in the flatland
    V. Savinov, V. A. Fedotov, M. Gupta, R. Singh, and N. I. Zheludev
    Rank Prize Symposium on Electromagnetic Metasurfaces, Grasmere, UK, 13 - 16 Mar 2017
  30. (invited) Metamaterials, anapoles and flying donuts
    N. I. Zheludev
    FRISNO-14, the 14th European/French Israeli Symposium on Nonlinear and Quantum Optics, Ein Gedi, Israel, 5 - 10 Mar 2017
  31. (plenary) Flying donuts: toroidal electromagnetic excitations in matter and free space
    N. I. Zheludev
    The Winter Colloquium on the Physics of Quantum Electronics PQE-2017, Snowbird, UT, USA, 8 - 13 Jan 2017
  32. (poster) High-Q Toroidal and Anapole Resonances in Metamaterials
    M. Gupta, V. Savinov, and R. Singh
    Nanometa 2017, Seefeld, Austria, 4 - 7 Jan 2017
  33. (poster) Generation of flying electromagnetic doughnuts via spatiotemporal conversion of transverse electromagnetic pulses
    T. Raybould, N. Papasimakis, V. A. Fedotov, I. Youngs, and N. I. Zheludev; [presenter: V. Savinov]
    Nanometa 2017, Seefeld, Austria, 4 - 7 Jan 2017
  34. (invited) Electromagnetic doughnuts: localised and propagating toroidal excitations enabled by metamaterials
    T. A. Raybould, V. Savinov, N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    Metamaterials 2016, Crete, Greece, 17 - 22 Sep 2016
  35. Planar toroidal metamaterials
    M. Gupta, V. Savinov, N. Xu, L. Cong, G. Dayal, S. Wang, W. Zhang, N. I. Zheludev and R. Singh
    IEEE Optical MEMS and Nanophotonics, Singapore, 3 Aug 2016
  36. (invited) Metamaterials as a platform to study localised and propagating toroidal excitations
    T. A. Raybould, V. Savinov, N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    CIMTEC 2016, Perugi, Italy, 5 - 9 June 2016
  37. Flying and localized electromagnetic doughnuts
    T. A. Raybould and N. I. Zheludev
    KnIFE Programme lunchtime seminar, DSTL, Porton Down, UK, 14 Mar 2016
  38. (invited) Electromagnetic toroidal moments, anapoles and flying doughnuts
    N. I. Zheludev
    Photonics Middle East, Doha, Qatar, 13 - 15 Dec 2015
  39. (invited) Intriguing properties of localized and propagating excitations
    N. I. Zheludev
    Nanophotonics in Asia, Osaka, Japan, 10 - 11 Dec 2015
  40. (poster) Toroidal excitations in space and matter
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, and N. I. Zheludev
    Defence & Security Doctoral Symposium, Cranfield, UK, 25 - 26 Nov 2015
  41. (invited) Electromagnetic doughnuts: localised and propagating toroidal excitations
    N. I. Zheludev
    Particle, Condensed Matter and Quantum Physics, Newport Pagnell, UK, 18 - 19 Nov 2015
  42. Chiral phenomena in toroidal metamaterials
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Kuprov, I. Youngs, W. T. Chen, D. P. Tsai, and N. I. Zheludev
    Metamaterials 2015, Oxford, UK, 7 - 12 Sep 2015
  43. Propagating toroidal electromagnetic excitations and their interactions with metamaterials and nanostructures
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, and N. I. Zheludev
    Metamaterials 2015, Oxford, UK, 7 - 12 Sep 2015
  44. (invited) Propagating and localized toroidal excitations in free space and metamaterials
    N. I . Zheludev, V. A. Fedotov, N. Papasimakis, V. Savinov, T. A. Raybould, I. Youngs
    SPIE Optics & Photonics 2015, San Diego, CA, USA, 9 - 13 Aug 2015
  45. (invited) Interrogating nanoparticles with focused doughnuts
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, and N. I. Zheludev
    PIERS 2015, Prague, Czech Republic, 6 - 9 Jul 2015
  46. A new type of optical activity in a toroidal metamaterial
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, W. T. Chen, D. P. Tsai, and N. I. Zheludev
    PIERS 2015, Prague, Czech Republic, 6 - 9 Jul 2015
  47. New enantiomeric phenomena in toroidal media
    T. A. Raybould, V. A. Fedotov, N. Papsimakis, I. J. Youngs, W. T. Chen, D. P. Tsai, and N. I. Zheludev
    CLEO/Europe-EQEC 2015, Munich, Germany 21 - 25 Jun 2015
  48. The Aharonov-Bohm-like effect in plasmonics
    V. Savinov, and N. I. Zheludev
    7th International Conference on Surface Plasmon Photonics (SPP7), Jerusalem, Israel 31 May – 5 June 2015
  49. A new type of optical activity in a toroidal metamaterial
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, W. T. Chen, D. P. Tsai, and N. I. Zheludev
    CLEO 2015, San Jose, CA, USA, 10 - 15 May 2015
  50. Interrogating nanoparticles with focused doughnut pulses
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, and N. I. Zheludev
    Optical Wave and Waveguide Theory and Numerical Modelling Workshop, London, UK, 17 - 18 Apr 2015
  51. (poster) The Aharonov-Bohm-like effect in plasmonics
    V. Savinov, N. I. Zheludev
    Nanometa 2015, Seefeld, Austria, 5 - 8 Jan 2015
  52. (poster) Flying electromagnetic toroids: propagation properties and light-matter interactions
    T. A. Raybould, V. A. Fedotov, N. Papasimakis, I. Youngs, N. I. Zheludev
    Nanometa 2015, Seefeld, Austria, 5 - 8 Jan 2015
  53. (invited) Metamaterials, toroids and flying donuts
    N. I. Zheludev, V. A. Fedotov, T. A. Raybould, N. Papasimakis, V. Savinov and I. Youngs
    IEEE Photonics Conference 2014, San Diego, CA USA, 12 - 16 Oct 2014
  54. (invited) Toroidal metamaterials: resonant transparency and non-trivial non-radiating excitations
    V. A. Fedotov, V. Savinov, A. V. Rogacheva, N. I. Zheludev
    Photon14, London, 1 - 4 Sep 2014
  55. (invited) Planar superconducting toroidal metamaterial: a source for oscillating vector-potential?
    V. Savinov, K. Delfanazari, V. A. Fedotov and N. I. Zheludev
    CLEO:2014, San Jose, CA, USA, 8 - 13 Jun 2014
  56. (poster) Interaction of flying electromagnetic doughnut with nanostructures
    T. A. Raybould, N. Papasimakis, V. A. Fedotov, I. Youngs, and N. I. Zheludev
    CLEO:2014, San Jose, CA, USA, 8 - 13 Jun 2014
  57. (invited) Non-trivial non-radiating excitations and ultra-narrow resonances in toroidal metamaterials
    V. A. Fedotov, V. Savinov, A. V. Rogacheva, and N. I. Zheludev
    META'14, Singapore, 20 - 23 May 2014
  58. (keynote) From plasmonic nanostructure, toroidal metamaterial, reflective metasurface to holographic metadevice
    W. T. Chen, Y. W. Huang, P. C. Wu, C. Y. Liao, K. Y. Yang, H. T. Lin, V. A. Fedotov, G. Sun, S. Sun, L. Zhou, A. Q. Liu, N. I. Zheludev, D. P. Tsai
    META'14, Singapore, 20 - 23 May 2014
  59. Non-radiating excitations, vector potential waves and toroidal metamaterials
    V. A. Fedotov, V. Savinov, A.V. Rogacheva, D. P. Tsai, and N. I. Zheludev
    Metamaterials' 2013, Bordeaux, France, 16 - 19 Sep 2013
  60. (poster) Non-radiating excitations, vector potential waves and toroidal metamaterials
    V. Savinov, V.A. Fedotov, A.V. Rogacheva, D.P. Tsai, and N.I. Zheludev
    CLEO/Europe - IQEC 2013, Munich, Germany, 12 - 16 May 2013
  61. Non-trivial non-radiating excitations and vector potential in toroidal metamaterials
    V. A. Fedotov, A. V. Rogacheva, V. Savinov, D. P. Tsai, and N. I. Zheludev
    Nanometa 2013, Seefeld, Austria, 3 - 6 Jan 2013
  62. (invited) Plasmon-induced transparency and plasmonic toroidal lasing spaser in three-dimensional metamaterials
    D. P. Tsai, W. T. Chen, P. C. Wu, C. T. Hsiao, K. Y. Yang, Y. W. Huang, C. Y. Liao, V. A. Fedotov, V. Savinov, and N. I. Zheludev
    SPIE Congress, San Diego, USA, 12 - 16 Aug 2012
  63. 3D metamaterials: erected U-shaped nano-rings and plasmonic toroidal metamaterials at optical frequencies
    W. T. Chen, P. C. Wu, Y. W. Huang, C. T. Hsiao, K. Yu Yang, C. Y. Liao, V. A. Fedotov, V. Savinov, N. I. Zheludev, and D. P. Tsai
    E-MRS 2012 Symposium on Control of light at the nanoscale:materials, techniques and applications, Strasbourg, France, 14 - 18 May 2012
  64. Toroidal photonic metamaterial
    V. Savinov, V. A. Fedotov, W. T. Chen, Y. W. Huang, D. P. Tsai, D. Burckel, I. Brener, N. I. Zheludev
    CLEO:2012, San Jose, United States, 06 - 11 May 2012
  65. (keynote) Three-dimensional metamaterials: from nano bumps to erected U-shape nano-rings and toroidal metamaterials in optical region
    D. P. Tsai, N. I. Zheludev, V. Savinov, V. A. Fedotov, H. G. Tsai, C. Y. Liao, K. S. Chung, Y. Z. Ho, L. C. Kuo, Y. J. Liu, H. W. Huang, Y.-W. Huang, K.-Y. Yang, C. T. Hsiao, S. Sun, B. H. Cheng, Y. L. Chen, P. C. Wu, C. M. Chang, M. L. Tseng, W. T. Chen
    SPIE Photonics Europe, Brussels, Belgium, 16 - 19 Apr 2012
  66. (poster) Toroidal plasmonic metamaterial
    V. Savinov, W. T. Chen, Y.-W. Huang, V. A. Fedotov, D. P. Tsai, D. B. Burckel, I. Brener, N. I. Zheludev
    SPIE Photonics Europe, Brussels, Belgium, 16 - 19 Apr 2012
  67. Plasmonic toroidal metamaterials at optical frequencies
    Y. W. Huang, W. T. Chen, P. C. Wu, Y. Z. Ho, Y. F. Chau, N. I. Zheludev, and D. P. Tsai
    PIERS 2012, Kuala Lumpur, 27 - 30 Mar 2012
  68. (invited) Toroidal dipolar response in metamaterials: illusion or reality
    V. A. Fedotov, T. Kaelberer, N. Papasimakis, A. V. Rogacheva, V. Savinov, and N. I. Zheludev
    Metamaterials 2011, Barcelona, Spain, 10 - 15 Oct 2011
  69. (plenary) Toroidal metamaterials
    V. A. Fedotov, and N. I. Zheludev
    YUCOMAT2011, Herceg Novi, Montenegro, 5-9 Sep 2011
  70. Plasmonic toroidal response at optical frequencies
    Y. W. Huang, W. T. Chen, P. C. Wu, Y. F. Chau, D. P. Tsai, V. A. Fedotov, V. Savinov, and N. I. Zheludev
    SPIE Optics & Photonics 2011, San Diego, CA, USA, 21-25 Aug 2011
  71. (invited) On incomplete Soukoulization of metamaterials research: toroids, anapoles and other uncostased problems
    N. I. Zheludev
    WavePro Symposium - Rethymnon, Crete, Greece, 8 -11 Jun 2011
  72. Demonstrating Elusive Toroidal Dipolar Response in Metamaterials
    A. Tsiatmas, V. A. Fedotov, T. Kaelberer, N. Papasimakis, V. Savinov,A. Rogacheva, D. P. Ysai, and N. I. Zheludev
    CLEO/Europe - EQEC 2011, Munich, Germany, 22-26 May 2011
  73. (invited) Metamaterials: demonstrating Toroidal Moment in the Frame of Classical Electrodynamics
    T. Kaelberer, V. A. Fedotov, N. Papasimakis, A. Rogacheva, and N. I. Zheludev
    NANOMETA 2011, Seefeld, Austria, 3-6 Jan 2011
  74. Toroidal moments in electromagnetic metamaterials
    T. Kaelberer, N. Papasimakis, V. A. Fedotov, and N. I Zheludev
    Photon 10, Southampton, UK, 23 - 26 Aug 2010
  75. Metamaterials: the search for toroidal moments
    T. Kaelberer, N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    SPIE Photonics Europe 2010, Brussels, Belgium, 12 - 16 Apr 2010
  76. Testing the controversies of toroidal electrodynamics using metamaterials
    N. Papasimakis, K. Marinov, V. A. Fedotov, A. D. Boardman, and N. I. Zheludev
    Plasmonics and Metamaterials (META), Rochester, New York, USA, 20 - 23 Oct 2008
  77. Optical activity in toroidal metamaterials
    N. Papasimakis, V. A. Fedotov, K. Marinov, A. D. Boardman, and N. I. Zheludev
    IoP Quantum Electronics and Photonics Conference (QEP-18), Edinburgh, UK, 26 - 29 Aug 2008
  78. (invited) Negatively refracting uniaxial toroidal metamaterial
    K. Marinov, A. Boardman, V. A. Fedotov, and N. I. Zheludev
    NANOMETA 2007, Seefeld, Austria, 09 - 11 Jan 2007
  79. Nonradiating toroidal structures
    A. D. Boardman, K. Marinov, N. I. Zheludev, and V. A. Fedotov
    SPIE International Congress on Optics and Optoelectronics, Warsaw, Poland, 28 Aug - 02 Sep 2005
    [Proc. of SPIE 5955-04]