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Dr. Nikitas Papasimakis

Project
Planar Metamaterials

Short CV
Nikitas Papasimakis completed his undergraduate studies in the Physics Department of the Athens National University, Greece in 2005 and his PhD studies in the Optoelectronics Research Centre at the University of Southampton in 2009. In the same year, he was awarded a PhD Plus fellowship to continue his research as a postdoctoral fellow and in 2010 he was appointed Leverhulme Advanced Research fellow at the same institution.

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. High-precision THz-TDS via self-referenced transmission echo method
    J. Gorecki, N. Klokkou, L. Piper, S. Mailis, N. Papasimakis, and V. Apostolopoulos
    Appl. Opt. 59 (22), 6744-6750 (2020) doi: 10.1364/AO.391103 - pdf
  4. Optically Reconfigurable Graphene/Metal Metasurface on Fe:LiNbO3 for Adaptive THz Optics
    J. Gorecki, L. Piper, A. Noual, S. Mailis, N. Papasimakis, and V. Apostolopoulos
    Appl. Nano Mater. 9 (3), 9494−9501 (2020) doi: 10.1021/acsanm.0c02243 - pdf
  5. Unlabeled Far-Field Deeply Subwavelength Topological Microscopy (DSTM)
    T. Pu, J. Y. Ou V. Savinov G. Yuan N. Papasimakis and N. I. Zheludev
    Adv. Sci. 8 (1), 2002886 (2020) doi: 10.1002/advs.202002886 - pdf
  6. Measures of space-time non-separability of electromagnetic pulses
    Y. Shen, A. Zdagkas, N. Papasimakis and N. I. Zheludev
    arXiv:2006.12603 (2020) - arXiv
  7. Deeply Subwavelength Optical Imaging
    T. Pu, J. Y. Ou, N. Papasimakis, N. I. Zheludev
    arXiv:2001.01068 (2020) - arXiv
  8. Label-free deeply subwavelength optical microscopy
    T. Pu, J. Y. Ou, N. Papasimakis and N. I. Zheludev
    Appl. Phys. Lett. 116 131105 (2020) doi: 10.1063/5.0003330 - pdf
  9. 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
  10. 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
  11. 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
  12. Cooperative field localization and excitation eigenmodes in disordered metamaterials
    N. Papasimakis, S. D. Jenkins, S. Savo, N. I. Zheludev, and J. Ruostekoski
    Phys. Rev. B 99, 014210 (2019) doi: 10.1103/PhysRevB.99.014210 - pdf
  13. Strong interactions and subradiance in disordered metamaterials
    S. D. Jenkins, N. Papasimakis, S. Savo, N. I. Zheludev, and J. Ruostekoski
    Phys. Rev. B 98, 245136 (2019) doi: 10.1103/PhysRevB.98.245136 - pdf
  14. Optical gating of graphene on photoconductive Fe:LiNbO3
    J. Gorecki, V. Apostolopoulos, J. Y. Ou, S. Mailis, and N. Papasimakis
    ACS Nano 12, 5940−5945 (2018) doi: 10.1021/acsnano.8b02161 - free access
  15. 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]
  16. Magneto-optical response in bimetallic metamaterials
    E. Atmatzakis, N. Papasimakis, V. A. Fedotov, G. Vienne and N. I. Zheludev
    Nanophotonics 7(1), 199–206 (2018) doi: 10.1515/nanoph-2016-0162 - pdf
  17. 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]
  18. Many-Body subradiant excitations in metamaterial arrays: experiment and theory
    S. D. Jenkins, J. Ruostekoski, N. Papasimakis, S. Savo, and N. I. Zheludev
    Phys. Rev. Lett. 119, 053901 (2017) doi: 10.1103/PhysRevLett.119.053901 - pdf
  19. Spontaneous natural optical activity in disordered media
    F. A. Pinheiro, V. A. Fedotov, N. Papasimakis, and N. I. Zheludev
    Phys. Rev. B 95, 220201(R) (2017) doi: 10.1103/PhysRevB.95.220201 - pdf
  20. Plasmonic absorption properties of bimetallic metamaterials
    E. Atmatzakis, N. Papasimakis, and N. I. Zheludev
    Microelectron. Eng. 172, 30-34 (2017) doi: 10.1016/j.mee.2017.02.009
  21. Self-Affine graphene metasurfaces for tunable broadband absorption
    P. C. Wu, N. Papasimakis, and D. P. Tsai
    Phys. Rev. Appl. 6, 044019 (2016) doi: 10.1103/PhysRevApplied.6.044019 - pdf
  22. 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
  23. 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
  24. 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
  25. Wavevector selective metasurfaces and tunnel vision filters
    V. A. Fedotov, J. Wallauer, M. Walther, M. Perino, N. Papasimakis, N. I. Zheludev
    Light Sci. Appl. 4, e306 (2015) doi: 10.1038/lsa.2015.79 - pdf
  26. Strain engineering in graphene by laser irradiation
    N. Papasimakis, S. Mailis, C. C. Huang, F. Al-Saab, D. W. Hewak, Z. Luo, Z. X. Shen
    Appl. Phys. Lett. 106, 061904 (2015) doi: 10.1063/1.4907776 - pdf
  27. The magnetic response of graphene split-ring metamaterials
    N. Papasimakis, S. Thongrattanasiri, N. I Zheludev and F. J. Garcia de Abajo
    Light Sci. Appl. 2, e78 (2013) doi: 10.1038/lsa.2013.34 - pdf
  28. Optical generation of intense ultrashort magnetic pulses at the nanoscale
    A. Tsiatmas, E. Atmatzakis, N. Papasimakis, V. Fedotov, B. Luk'yanchuk, N. I. Zheludev, and F. J. Garcia de Abajo
    New J. Phys. 15, 113035 (2013) doi: 10.1088/1367-2630/15/11/113035 - pdf
  29. Nonlinear graphene metamaterial
    A. E. Nikolaenko, N. Papasimakis, E. Atmatzakis, Z. Luo, Z. Xiang Shen, F. De Angelis, S. A. Boden, E. Di Fabrizio, N. I. Zheludev
    Appl. Phys. Lett. 100, 181109 (2012) doi: 10.1063/1.4711044 - pdf
  30. Control of metal color using surface relief metamaterial nanostructuring
    J. Zhang, J. Y. Ou, N. Papasimakis, Y. Chen, K. F. MacDonald, and N. I. Zheludev
    SPIE Newsroom (2012) doi: 10.1117/2.1201202.004119 - pdf
  31. Localization of electromagnetic fields in disordered metamaterials
    S. Savo, N. Papasimakis, and N. I. Zheludev
    Phys. Rev. B 85, 121104(R) (2012) doi: 10.1103/PhysRevB.85.121104 - pdf
  32. THz bandwidth optical switching with carbon nanotube metamaterial
    A. E. Nikolaenko, N. Papasimakis, A. Chipouline, F. De Angelis, E. Di Fabrizio and N.I. Zheludev
    Opt. Express 20(6), 6068 (2012) doi: 10.1364/OE.20.006068 - pdf
  33. Continuous metal plasmonic frequency selective surfaces
    J. Zhang, J. Y. Ou, N. Papasimakis, Y. Chen, K. F. MacDonald, and N. I. Zheludev
    Opt. Express 19(23), 23279 (2011) doi: 10.1364/OE.19.023279 - pdf
  34. 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
  35. Spectral collapse in ensembles of metamolecules
    V. A. Fedotov, N. Papasimakis, E. Plum, A. Bitzer, M. Walther, P. Kuo, D. P. Tsai, and N. I. Zheludev
    Phys. Rev. Lett. 104, 223901 (2010) doi: 10.1103/PhysRevLett.104.223901 - pdf
  36. Carbon nanotubes in a photonic metamaterial
    A. E. Nikolaenko, F. De Angelis, S. A. Boden, N. Papasimakis, P. Ashburn, E. Di Fabrizio, and N. I. Zheludev
    Phys. Rev. Lett. 104, 153902 (2010) doi: 10.1103/PhysRevLett.104.153902 - pdf
  37. Graphene in a photonic metamaterial
    N. Papasimakis, Z. Luo, Z. X. Shen, F. De Angelis, E. Di Fabrizio, A. E. Nikolaenko, and N. I. Zheludev
    Opt. Express 18, 8353 (2010) doi: 10.1364/OE.18.008353 - pdf
  38. Metamaterial-induced transparency
    N. Papasimakis and N. I. Zheludev
    OPN Optics & Photonics News 20 (10), 22 (2009) doi: 10.1364/OPN.20.10.000022 - pdf

    [OPN cover page, link]
  39. 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
  40. Coherent and incoherent metamaterials and order-disorder transitions
    N. Papasimakis, V. A. Fedotov, Y. H. Fu, D. P. Tsai, and N. I. Zheludev
    Phys. Rev. B 80, 041102(R) (2009) doi: 10.1103/PhysRevB.80.041102 - pdf
  41. Metamaterial with polarization and direction insensitive resonant transmission response mimicking electromagnetically induced transparency
    N. Papasimakis, Y. H. Fu, V. A. Fedotov, S. L. Prosvirnin, D. P. Tsai, and N. I. Zheludev
    Appl. Phys. Lett. 94, 211902 (2009) doi: 10.1063/1.3138868 - pdf
  42. Metamaterial analog of electromagnetically induced transparency
    N. Papasimakis, V. A. Fedotov, N. I. Zheludev, and S. L. Prosvirnin
    Phys. Rev. Lett. 101, 253903 (2008) doi: 10.1103/PhysRevLett.101.253903 - pdf
  43. Lasing spaser
    N. I. Zheludev, S. L. Prosvirnin, N. Papasimakis, and V. A. Fedotov
    Nat. Photonics 2 351-354 (2008) doi: 10.1038/nphoton.2008.82 - free access
  44. Sharp trapped-mode resonances in planar metamaterials with a broken structural symmetry
    V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev
    Phys. Rev. Lett. 99, 147401 (2007) doi: 10.1103/PhysRevLett.99.147401 - pdf
  45. Enhanced microwave transmission through quasicrystal hole arrays
    N. Papasimakis, V. A. Fedotov, A. S. Schwanecke, N. I. Zheludev, and F. J. García de Abajo
    Appl. Phys. Lett. 91, 081503 (2007) doi: 10.1063/1.2773763 - pdf

Conference Contributions

  1. (invited) Pico-Metrology and Odometry with Topological Light and Free Electrons: Fundamental Studies and Technological Applications
    C. Rendón-Barraza, E. A. Chan, J. Li, T. Liu, K. F. MacDonald, J.-Y. Ou, D. Papas, N. Papasimakis, E. Plum, T. Pu, G. Yuan, and N. I. Zheludev
    15th International Congress on Artificial Materials for Novel Wave Phenomena, New York, USA, 2-5 Aug 2021
  2. Optical Magnetism without Metamaterials
    J. Li, N. Papasimakis, K. F. MacDonald, and N. I. Zheludev
    CLEO/Europe-EQEC 2021 Virtual Meeting, 21 - 25 June 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. Optical Counting of Particles Too Small to See
    E. A. Chan, C. Rendón-Barraza, G. Yuan, T. Pu, J. Y. Ou, N. Papasimakis and N. I. Zheludev
    CLEO/Europe-EQEC 2021 Virtual Meeting, 21 - 25 June 2021
  5. Deeply Subwavelength Topological Microscopy
    T. Pu, J. Y. Ou, E. Rogers, N. Papasimakis, P. J. Smith and N. I. Zheludev
    CLEO/Europe-EQEC 2021 Virtual Meeting, 21 - 25 June 2021
  6. Skyrmionic Supertoroidal Light Pulses
    Y. Shen, Y. Hou, A. Zdagkas, N. Papasimakis, and N. I. Zheludev
    CLEO 2021 Virtual Conference, 9 - 14 May 2021
  7. (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
  8. Observation of Toroidal Light Pulses
    A. Zdagkas, Y. Shen(1), S. Pidishety, C. McDonnell, J. Deng, G. Li, N. Papasimakis T. Ellenbogen and N. I. Zheludev
    CLEO 2021 Virtual Conference, 9 - 14 May 2021
  9. Deeply Subwavelength Topological Microscopy
    T. Pu, J. Y. Ou, G. Yuan, E. Rogers, N. Papasimakis, P. J. Smith and N. I. Zheludev
    CLEO 2021 Virtual Conference, 9 - 14 May 2021
  10. 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
  11. 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
  12. (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
  13. (invited) Metamaterials, deep learning and optical super-resolution
    N. I. Zheludev, T. Pu, G. Yuan, J. Y. Ou, V. Savinov, and N. Papasimakis
    SPIE Optics & Photonics 2020, Digital Forum, 23 - 27 Aug 2020
  14. Deep Subwavelength Singularity Imaging Beyond λ/100
    T. Pu, V. Savinov, G. Yuan, J. Y. Ou, N. Papasimakis, and N. I. Zheludev
    CLEO 2020 Virtual Conference, 11-15 May 2020
  15. 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
  16. Emission of Diamond NV Centers in Dielectric, Semiconducting and Plasmonic Environments
    H. Li, J. Y. Ou, V. A. Fedotov, N. Papasimakis and N. I. Zheludev
    CLEO 2020 Virtual Conference, 11-15 May 2020
  17. (plenary) Optical super-resolution beyond λ/100 through artificial intelligence
    N. I. Zheludev, T. Pu, G. Yuan, J. Y. Ou, V. Savinov and N. Papasimakis
    The 50th Winter Colloquium on the Physics of Quantum Electronics (PQE 2020), Snowbird, Utah, USA, 5-10 January 2020
  18. 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
  19. Decay rate statistics of NV centres in diamond on plasmonic and dielectric substrates
    H. Li, J. Y. Ou, N. Papasimakis, V. A. Fedotov and N. I. Zheludev
    Electron Beam Spectroscopy for Nanophotonics 2019 (EBSN 2019), Paris, France, 16-19 Sept 2019
  20. (invited) Anapoles and flying doughnuts
    N. Papasimakis, V. Savinov, A. Zdagkas, and N. I. Zheludev
    ICEAA 2019, Granada, Spain, 9 - 13 Sep 2019
  21. Lifetime distributions of NV centres in diamond on plasmonic and dielectric substrates
    H. Li, J. Y. Ou, N. Papasimakis, V. A. Fedotov and N. I. Zheludev
    Nanophotonics and Micro/Nano Optics International Conference (NANOP 2019), Munich, Germany, 4 - 6 Sept 2019
  22. (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
  23. Optical tuning of graphene electronics and plasmonics on iron doped lithium niobate
    J. Gorecki, L. Piper, V. Apostolopoulos, S. Mailis, and N. Papasimakis
    CLEO 2019, San Jose, CA, USA, 5 - 10 May 2019
  24. 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
  25. (poster) Quantum emitters in epsilon-near-zero and negative epsilon environments
    H. Li, J. K. So, B. Gholipour, D. Piccinotti, N. Papasimakis, V. F. Fedotov, W. Gao, B. Hayden, and N. I. Zheludev
    Nanometa 2019, Seefeld, Austria, 3 - 6 Jan 2019
  26. (poster) Optical gating of graphene
    J. Gorecki, V. Apostolopoulos, S. Mailis, and N. Papasimakis
    Graphene Week 2018, San Sebastian, Spain, 10 - 14 Sept 2018
  27. 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
  28. Chirality and natural optical activity in disordered media
    F. A. Pinheiro, V. A. Fedotov, and N. Papasimakis
    CLEO Europe - EQEC 2017 , Munich, Germany 25 - 29 Jun 2017
  29. 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
  30. (poster) Far-field natural optical activity of disordered media
    F. A. Pinheiro, V. A. Fedotov, N. Papasimakis, and N. I. Zheludev; [presenter: E. Plum]
    Nanometa 2017, Seefeld, Austria, 4 - 7 Jan 2017
  31. (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
  32. (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
  33. (invited) Cooperative effects in periodic and disordered metamaterial lattices
    N. Papasimakis, S. Jenkins, J. Ruostekoski, V. A. Fedotov, F. A. Pinheiro, and N. I. Zheludev
    FNM 2016, Tbilisi, Georgia, 5 Sep 2016
  34. (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
  35. (invited) Collective effects in ordered and disordered metasurfaces; applications in light localization and imaging
    N. Papasimakis, S. Jenkins, S. Savo, J. Ruostekoski, V. A. Fedotov, N. I. Zheludev
    Exeter Microwave Metamaterials Meeting (XM3), Exeter, UK, 7 - 8 Dec 2015
  36. (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
  37. 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
  38. 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
  39. (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
  40. (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
  41. 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
  42. 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
  43. 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
  44. (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
  45. (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
  46. Planar metamaterial as a wavevector selective surface
    V. A. Fedotov, J. Wallauer, M. Walther, N. Papasimakis, N. I. Zheludev
    Metamaterials'2014, Copenhagen, Denmark, 25 - 30 Aug 2014
  47. Giant Kerr rotation enhancement in hybrid magneto-plasmonic metamaterials
    E. Atmatzakis, N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    Metamaterials'2014, Copenhagen, Denmark, 25 - 30 Aug 2014
  48. Giant Kerr rotation enhancement in magneto-plasmonic metamaterials
    E. Atmatzakis, N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    CLEO:2014, San Jose, CA, USA, 8 - 13 Jun 2014
  49. Wavevector selective surface
    V. A. Fedotov, J. Wallauer, M. Walther, N. Papasimakis, N. I. Zheludev, and E. Atmatzakis
    CLEO:2014, San Jose, CA, USA, 8 - 13 Jun 2014
  50. (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
  51. Wavevector selective surfaces
    V. A. Fedotov, J. Wallauer, M. Walther, N. Papasimakis, and N. I. Zheludev
    META'14, Singapore, 20 - 23 May 2014
  52. (invited) Controlling magnetism at the nanoscale with metamaterials
    N. Papasimakis, E. Atmatzakis, A. Tsiatmas, V. A. Fedotov, B. Luk'yanchuk, F. Javier Garcia de Abajo, and Nikolay I. Zheludev
    SPIE Photonics Europe, Brussels, Belgium, 14 - 17 Apr 2014
  53. Magnetic graphene metamaterial
    N. Papasimakis, S. Thongrattanasiri, N. I. Zheludev, and F. J. Garcia de Abajo
    CLEO/Europe - IQEC 2013, Munich, Germany, 12 - 16 May 2013
  54. Optical excitation of unipolar Tesla magnetic pulses in plasmonic nanostructures
    E. Atmatzakis, A. Tsiatmas, N. Papasimakis, V. A. Fedotov, B. Luk’yanchuk, F. J. Garcia de Abajo, and N. I. Zheludev
    CLEO/Europe - IQEC 2013, Munich, Germany, 12 - 16 May 2013
  55. (invited) Tesla magnetic pulses by optical excitation of plasmonic nanostructures
    E. Atmatzakis, A. Tsiatmas, N. Papasimakis, V. A. Fedotov, B. Luk'Yanchuk, J. G. de Abajo, and N. I. Zheludev
    IPS Meeting 2013, Singapore, 4 - 6 Mar 2013
  56. Generating Tesla Magnetic Pulses in Plasmonic Nanostructures
    E. Atmatzakis, A. Tsiatmas, N. Papasimakis, V. A. Fedotov, B. Luk'yanchuk, J. G. de Abajo, and N. I. Zheludev
    Nanometa 2013, Seefeld, Austria, 3 - 6 Jan 2013
  57. Magnetic graphene metamaterial
    N. Papasimakis, S. Thongrattanasiri, N. I. Zheludev, and J. G. de Abajo
    Nanometa 2013, Seefeld, Austria, 3 - 6 Jan 2013
  58. Terahertz bandwidth optical nonlinearity of graphene metamaterial
    A. E. Nikolaenko, E. Atmatzakis, N. Papasimakis, Z. Luo, Z. X. Shen, S. Boden, P. Ashburn, and N. I. Zheludev
    CLEO:2012, San Jose, United States, 06 - 11 May 2012
  59. THz bandwidth light-with-light modulation in graphene metamaterial
    A. Nikolaenko, E. Atmatzakis, N. Papasimakis, Z. Luo, Z. X. Shen, F. De Angelis, E. Di Fabrizio, N. I. Zheludev
    META'12, Paris, France, 19 - 22 Apr 2012
  60. (poster) Ultrafast nonlinearity of graphene metamaterial
    A. Nikolaenko, E. Atmatzakis, N. Papasimakis, Z. Luo, Z. X. Shen, F. De Angelis, E. Di Fabrizio, N. I. Zheludev
    SPIE Photonics Europe, Brussels, Belgium, 16 - 19 Apr 2012
  61. (poster) Light localization, linear and nonlinear properties of disordered plasmonic metamaterials
    T. S. Kao, T. Roy, M. Ren, N. Papasimakis, F. DeAngelis, E. DiFabrizio, A. E. Nikolaenko, N. I. Zheludev
    SPIE Photonics Europe, Brussels, Belgium, 16 - 19 Apr 2012
  62. (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
  63. (invited) Fano resonance and light localization in disordered metamaterials
    S. Savo, N. Papasimakis, S. Jenkins, J. Ruostekoski, and N. I. Zheludev
    Metamaterials 2011, Barcelona, Spain, 10 - 15 Oct 2011
  64. Light Localization in Disordered Metamaterials
    S. Savo, N. Papasimakis, and N. I. Zheludev
    CLEO/Europe - EQEC 2011, Munich, Germany, 22-26 May 2011
  65. 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
  66. (invited) Advances in nonlinear and switchable photonic metamaterials
    K. F. MacDonald, M. Ren, J. Zhang, B. Gholipour, N. Papasimakis, A. E. Nikolaenko, Z. X. Shen, D. W. Hewak, and N. I. Zheludev
    SPP5, Busan, S. Korea, 15 -20 May 2011
  67. Light Localization in Disordered Metamaterials
    S. Savo, N. Papasimakis, and N. I. Zheludev
    CLEO/QELS 2011, Baltimore, Maryland, US, 1-6 May 2011
  68. (invited) Nanostructured photonic metamaterials: functionalities underpinned by metamolecular interactions
    N. I. Zheludev, E. Plum, V. A. Fedotov, N. Papasimakis, and S. Savo
    Las Vegas, NV, USA, 21 - 25 Apr 2011
  69. (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
  70. Tuning metamaterial properties by a single-layer of graphene
    N. Papasimakis, A. Nikolaenko, Z. Luo, Z. X. Shen, F. De Angelis, E. Di Fabrizio, S. Boden, T. Uchino, and N. I. Zheludev
    NANOMETA 2011, Seefeld, Austria, 3-6 Jan 2011
  71. Intaglio and Bas-Relief Metamaterials: controlling the Colour of Metals
    J. Zhang, J. Y. Ou, N. Papasimakis, Y. Chen, K. F. MacDonald, and N. I. Zheludev
    NANOMETA 2011, Seefeld, Austria, 3-6 Jan 2011
  72. Graphene superstrates for metamaterials
    N. Papasimakis, Z. Luo, Z. X. Shen, F. De Angelis, E. Di Fabrizio, A. E. Nikolaenko, and N. I. Zheludev
    Metamaterials'2010, Karlsruhe, Germany, 13 - 16 Sep 2010
  73. Collective dynamics in photonic meta-molecules: from light localization to the lasing spaser
    S. Jenkins, N. Papasimakis, N. I. Zheludev, and J. Ruostekoski
    Metamaterials'2010, Karlsruhe, Germany, 13 - 16 Sep 2010
  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. Graphene as a metamaterial superstrate
    Z. X. Shen, Z. Luo, F. De Angelis, E. Di Fabrizio, N. Papasimakis, A. E. Nikolaenko, and N. I. Zheludev
    Recent Advances in Graphene and Related Materials , Singapore, 01 - 06 Aug 2010
  76. (invited) Graphene in a plasmonic metamaterial
    Z. Luo, Z. X. Shen, N. Papasimakis, A. E. Nikolaenko, F. De Angelis, E. Di Fabrizio, and N. I. Zheludev
    SPIE Optics & Photonics, San Diego, CA, USA, 01 - 05 Aug 2010
  77. Carbon nanotubes in a photonic metamaterial: giant ultrafast nonlinearity through plasmon-exciton coupling
    A. Nikolaenko, F. De Angelis, S. A. Boden, N. Papasimakis, P. Ashburne, E. M. Di Fabrizio, and N. I. Zheludev
    CLEO/QELS 2010, San Jose, CA, USA, 16 - 21 May 2010
  78. (invited) Carbon nanotubes in photonic metamaterials
    N. I. Zheludev, A. Nikolaenko, F. De Angelis, S. A. Boden, N. Papasimakis, P. Ashburne, and E. M. Di Fabrizio
    SPIE Photonics Europe 2010, Brussels, Belgium, 12 - 16 Apr 2010
  79. 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
  80. Surface waves in metamaterial lattices: high-Q resonances and Wood's anomalies
    N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    SPIE Photonics Europe 2010, Brussels, Belgium, 12 - 16 Apr 2010
  81. (invited) Fano resonances and collective effects in metamaterials
    N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    META'10 2nd International Conference on Metamaterials, Photonic crystals and Plasmonics, Cairo, Egypt, 22 - 25 Feb 2010
  82. (invited) Metamaterials - from modeling and fabrication to application
    N. I. Zheludev, V. A. Fedotov, N. Papasimakis, E. Plum, and J. Shi
    2009 MRS Fall Meeting, Boston, Massachusetts, USA, 30 Nov - 04 Dec 2009
  83. Coherent meta-magnetics: collective resonances and disorder-induced transitions
    N. Papasimakis, V. A. Fedotov, Y. H. Fu, D. P. Tsai, and N. I. Zheludev
    ICO-Photonics, Delphi, Greece, 07 - 09 Oct 2009
  84. (keynote) Coherent metamaterials
    N. I. Zheludev, V. A. Fedotov, E. Plum, and N. Papasimakis
    Metamaterials 2009 Congress, London, UK, 30 Aug - 04 Sep
  85. (invited) Mimicking EIT, BEC, ferromagnetism, the Mössbauer and the Bunn effects in photonic metamaterials
    N. Papasimakis, E. Plum, V. A. Fedotov, and N. I. Zheludev
    ICMAT 2009, Singapore, 28 Jun - 03 Jul 2009
  86. Metamaterial analogue of the Mössbauer effect
    V. A. Fedotov, N. Papasimakis, A. Bitzer, M. Walther, and N. I. Zheludev
    CLEO/Europe-EQEC, Munich, Germany, 14 - 19 Jun 2009
  87. (invited) Coherent metamaterials: from "optical ferromagnetism" to the lasing spaser
    N. Papasimakis, V. A. Fedotov, and N. I. Zheludev
    CLEO/IQEC 09, Baltimore, Maryland, USA, 31 May - 05 Jun 2009
  88. (invited) Coherent and incoherent metamaterials
    N. I. Zheludev, N. Papasimakis, and V. A. Fedotov
    NANOMETA 2009, Seefeld, Austria, 5-8 Jan 2009
  89. 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
  90. (invited) Metamaterials enter the physics playground: from EIT to lasing spaser
    V. A. Fedotov, N. Papasimakis, E. Plum, S. L. Prosvirnin, and N. I. Zheludev
    Metamaterials 2008, Pamplona, Spain, 23 - 26 Sep 2008
  91. 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
  92. (poster) Coherent metamaterials and the lasing spaser
    N. I. Zheludev, S. L. Prosvirnin, N. Papasimakis, and V. A. Fedotov
    IoP Quantum Electronics and Photonics Conference (QEP-18), Edinburgh, UK, 26 - 29 Aug 2008
  93. (invited) Lasing spaser
    N. I. Zheludev, S. L. Prosvirnin, N. Papasimakis, and V. A. Fedotov
    SPIE Plasmonics: Metallic Nanostructures and Their Optical Properties VI, San Diego, CA, USA, 10 - 13 Aug 2008
  94. Slow light in "zero thickness" metamaterials
    N. Papasimakis, V. A. Fedotov, S. L. Prosvirnin, and N. I. Zheludev
    Slow and Fast Light, Boston, MA, USA, 13 - 16 Jul 2008
  95. (invited) Coherent meta-materials and the lasing spaser
    N. I. Zheludev, S. L. Prosvirnin, N. Papasimakis, and V. A. Fedotov
    IEEE COMCAS 2008, Tel Aviv, Israel, 13 - 14 May 2008
  96. (invited) Close-mode resonances in metamaterials and lasing spaser
    N. I. Zheludev, V. A. Fedotov, N. Papasimakis, E. Plum, and S. L. Prosvirnin
    Photonics Europe (SPIE Europe), Strasbourg, France, 7 - 11 Apr 2008
  97. (invited) Coherent meta-materials and the lasing spaser
    N. I. Zheludev, N. Papasimakis, V. A. Fedotov, and S. L. Prosvirnin
    6th International Workshop on Nanophotonics, Taipei, Taiwan, 11 Mar 2008
  98. (invited) Long pulse delays; a planar metamaterial analog of EIT
    N. Papasimakis, V. A. Fedotov, N. I. Zheludev, and S. L. Prosvirnin
    6th International Workshop on Nanophotonics, Taipei, Taiwan, 11 Mar 2008
  99. (invited) Far-field subwavelength focusing and extraordinary transmission of light by a quasi-periodic array of nanoholes
    F. M. Huang, A. S. Schwanecke, N. Papasimakis, Y. Chen, F. J. Garcia de Abajo, and N. I. Zheludev
    Metamaterials 2007: First International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, Rome, Italy, 22 - 26 Oct 2007
  100. (invited) Plasmon resonances in photonic chiral metamaterials
    N. I. Zheludev, V. A. Fedotov, A. S. Schwanecke, E. Plum, N. Papasimakis, and K. Marinov
    Frontiers in Optics 2007, San Jose, CA, USA, 16 - 20 Sep 2007
  101. (keynote) Chirality in photonic meta-materials
    N. I. Zheludev, V. A. Fedotov, M. Rose, N. Papasimakis, and S. L. Prosvirnin
    Photonic Metamaterials at SPIE Optics and Photonics Congress, San Diego, USA, 26 - 30 Aug 2007
  102. Long pulse delays in thin metamaterial slabs
    N. Papasimakis, V. A. Fedotov, S. L. Prosvirnin, and N. I. Zheludev
    CLEO/Europe-IQEC2007, Munich, Germany, 17 - 22 Jun 2007
  103. Achieving sharp resonances in metamaterials through symmetry breaking
    V. A. Fedotov, M. Rose, N. Papasimakis, S. L. Prosvirnin, and N. I. Zheludev
    CLEO/Europe-IQEC2007, Munich, Germany, 17 - 22 Jun 2007
  104. Metamaterial analog of electromagnetically induced transparency
    N. Papasimakis, V. A. Fedotov, S. L. Prosvirnin, and N. I. Zheludev
    Photonic Metamaterials: From Random to Periodic, Jackson Hole, Wyoming, USA, 04 - 07 Jun 2007
  105. "Slow" light in media of "zero" dimension
    N. Papasimakis, V. A. Fedotov, S. L. Prosvirnin, and N. I. Zheludev
    QELS (CLEO/QELS 2007), Baltimore, MD, USA, 06 - 11 May 2007
  106. Achieving sharp resonances in metamaterials via engaging "closed-modes"
    V. A. Fedotov, M. Rose, N. Papasimakis, S. L. Prosvirnin, and N. I. Zheludev
    QELS (CLEO/QELS 2007), Baltimore, MD, USA, 06 - 11 May 2007
  107. (poster) "Slow" light in planar metamaterials
    N. Papasimakis, V. A. Fedotov, S. L. Prosvirnin, and N. I. Zheludev
    NANOMETA 2007, Seefeld, Austria, 09 - 11 Jan 2007
  108. Achieving sharp spectral resonances in metamaterials via engaging 'closed modes'
    V. A. Fedotov, M. Rose, N. Papasimakis, S. L. Prosvirnin and N. I. Zheludev
    NANOMETA 2007, Seefeld, Austria, 09 - 11 Jan 2007
  109. Quasi-periodic arrays of subwavelength holes in a metal screen: Self-imaging in the near-field and far-field extraordinary transmission
    F. M. Huang, A. S. Schwanecke, N. Papasimakis, Y. Chen, F. J. García de Abajo, and N. I. Zheludev
    NFO-9, Lausanne, Switzerland, 10 - 15 Sep 2006
  110. Extraordinary transmission through planar quasicrystal
    F. J. García de Abajo, V. A. Fedotov, N. Papasimakis, A. S. Schwanecke, Y. Chen, and N. I. Zheludev
    QEP-17 at Photon06, Manchester, UK, 4 - 7 Sep 2006
  111. Extraordinary light transmission through quasicrystal arrays of holes in a metal film
    F. J. García de Abajo, Y. Chen, V. A. Fedotov, N. Papasimakis, A. S. Schwanecke, and N. I. Zheludev
    SPIE Optics and Photonics 2006, Complex Photonic Media (NP201), San Diego, CA, USA, 13 - 17 Aug 2006
  112. Extraordinary light transmission through quasicrystal arrays of holes in a metal film
    F. J. García de Abajo, Y. Chen, V. A. Fedotov, N. Papasimakis, A. S. Schwanecke, N. I. Zheludev
    Photonic Metamaterials: From Random to Periodic, Grand Island, The Bahamas, 5 - 8 Jun 2006
  113. (post-deadline) "Invisible" quasi-periodic array of subwavelength apertures in metal screen
    A. S. Schwanecke, N. Papasimakis, V. A. Fedotov, F. M. Huang, Y. Chen, F. J. García de Abajo, and N. I. Zheludev
    Nanophotonics Topical Meeting (NANO) at IPRA/NANO OSA Collocated Topical Meetings, Uncasville, CT, USA, 24 - 28 Apr 2006