• Quantized field of single photons
    Stellenbosch University, South Africa, invited lecture, November 25, 2019.
  • The electromagnetic field ground state and the Cosmological Evolution
    Invited lecture, Russian Academy of Science, Lomonosov University of Moscow, IC-MSQUARE, August 2018, Russia.
  • The Single Photon State, the Quantum Vacuum and the Elementary Electron/Positron Charge Invited lecture, ICCSME International Conference, March 2018, Thessaloniki, Greece.
  • Vector potential quantization. Single photon state and the Quantum Vacuum. 
    C. Meis
    Invited Lecture.
    Energy, Materials & Nanotechnology. International Conference, Mauritius, Nov. 2017.
  • Quantized vector potential and the photon wave function
    C. Meis and P.R. Dahoo
    6th International Conference on Mathematical Modeling in Physical Sciences
    IC-MSQUARE, August 2017, Neapolis University, Cyprus.
    • Best paper award attributed by the International Committee and the Universe Journal Editorial Board.
  • Investigating CH4 Thermal Activation in Clathrate Nano-cages
    C. Meis and P.R. Dahoo
    6th International Conference on Mathematical Modeling in Physical Sciences
    IC-MSQUARE, August 2017, Neapolis University, Cyprus.
  • Vector potential quantization and the photon intrinsic electromagnetic properties.
    Towards non-destructive photon detection.
    C. Meis and P.R. Dahoo
    “QUANTUM 2017” International conference,  May 2017, Torino University, Italy.
  • Vector potential quantization and the photon wave-particle representation
    5th International Conference on Mathematical Modeling in Physical Science.
    IC-MSQUARE – Athens, Greece, May 2016.
  • Second quantization and the electromagnetic field vector potential”
    Invited lecture. Federal University of Rio de Janeiro (UFRJ), Brazil, May 2015.
  • Coupling of  DFT and MD methods
    Invited lecture. Federal University of Rio de Janeiro (UFRJ), Brazil, May 2015.
  • Light and Vacuum
    FIAT LUX – UNESCO Congress, University of Sapienza, Rome, Italy, June 2015.
  • Second Quantization and the vector potential
    University of Mauritius, July 2015. Invited Lecture
  • Principles of Multiscale Modelling of Materials
    ATC International Congress, Paris, September 2015. Invited Lecture.
  • Atomistic scale modelling of materials
    ALTAIR-Engineering International Conference
    Torino University, Italy, April 2013. Invited lecture.
  • Molecular Dynamics methods for the study of radiation effects in materials
    National Technical University of Athens, Greece. November 2012. Invited lecture.
  • Investigation of irradiation effects induced by high energy self-ion in 6H SiC combining RBS/C, Raman, XRD
    N. Chaâbane, A. Debelle, G. Sattonnay, P. Trocellier, Y. Serruys, L. Thomé,
    Y. Zhang, W. J. Weber, C. Meis
    Radiation Effects in Insulators REI, Beijing, China, 2011.
  • Radiation effects in thorium phosphate di-phosphate
    C. Meis, MRSScientific Basis for Nuclear Waste Management
    Buenos Aires, Argentina, October 2011.
  • Threshold displacement energies and behaviour under irradiation of oxides, silicates and phosphates.
    C.Meis. Invited lecture. UFRJ, Rio de Janeiro, Brazil, April 2010.
  • Reliable force-fields from ab-initio calculations
    C.Meis. Invited lecture. UFRJ, Rio de Janeiro, Bazil, April 2010.
  • Molecular Dynamics Study of Frenkel Pairs in Cerium Dioxide
    Kenichi Shiiyama, Tomokazu Yamamoto, Tatsurou Takahashi,
    Aurore Guglielmetti, Alain Chartier, Kazuhiro Yasuda, Syo Matsumura,
    Kazufumi Yasunaga and Constantin Meis
    MMM 2008, Florida, USA, Oct 27-31, 2008-07-31.
  • Molecular dynamics simulation of irradiation induced phase transition in MgAl2O4
    Alain Chartier, Constantin Meis, Tomokazu Yamamoto, Kazuhiro Yasuda,
    Kenichi Shiiyama, and Syo Matsumura
    MMM 2008, Florida, USA, Oct 27-31, 2008-07-31.
  • Simulation of irradiation induced re-crystallization in spinel
    Alain Chartier, Constantin Meis, Tomokazu Yamamoto, Kazuhiro Yasuda,
    Kenichi Shiiyama, and Syo Matsumura
    MRS, Boston USA, Nov. 26-28, 2007.
  • Study of the RIM structure in UO2 using inter atomic potentials
    C.Meis. Invited lecture, Tokyo University & JAEA, Japan, February 2007
  • Molecular Dynamics Simulation for the behavior of point defects in CeO2
    Kenichi Shiiyama, Tatsuro Takahashi, Tomokazu Yamamoto,
    Kazuhiro Yasuda, Syo Matsumura, Alain Chartier and Constantin Meis
    Annual Meeting of Japan Institute of Metals
    Musash Institute of Technology, Tokyo, Japan, March 2007.
  • Radiation effects in lanthanum pyrozirconate
    A. Chartier , J.-P. Crocombette, C. Meis, W.J. Weber, and L.R. Corrales
    Radiation Effects in Insulators REI Caen, France, September 2007.
  • An ab-initio study of Helium insertion and diffusion in cubic silicon carbide.
    Alain Chartier, Renée Van Ginhoven, William J. Weber, Constantin Meis, and L. René Corrales.
    Radiation Effects in Insulators REI Caen, France, September 2007.
  • Atomistic modeling of electron beam induced re-crystallization of amorphous MgAl2O4
    Alain Chartier, Tomokazu Yamamoto, Kazuhiro Yasuda, Constantin Meis and Syo Matsumura
    Radiation Effects in Insulators REI Caen, France, September 2007.
  • Helium diffusion in SiC investigated with nuclear reaction analysis
    Miro Sandrine, Meis Constantin, Vaubaillon Sylvain, Beck Lucile, Pellegrino Stéphanie, Weber J. William, Costantini Jean-Marc, Chartier Alain.
    Radiation Effects in Insulators REI Caen, France, September 2007.
  • Molecular dynamics simulation of point defect accumulation in MgAl2O4
    Yamamoto Tomokazu, Chartier Alain, Yasuda Kazuhiro, Meis Constantin, Shiiyama Kenichi, Matsumura Syo.
    Radiation Effects in Insulators REI Caen, France, September 2007.
  • Computer simulation of energetic recoils in zircon
    R. Devanathan, L. R. Corrales, W. J. Weber, A. Chartier and C. Meis
    6th PacRim meeting of ACerS. Sept. 12-16, Maui, Hawai, 2005.
  • Simulation of Radiation effects in ceramics coupling MD and ab-initio methods. Methodology for calculating the threshold displacement energies
    C.Meis. Invited lecture. Kyushu University, Japan, July 2005.
  • Coupling of ab-initio and classical molecular Dynamics for the study of radiation effects in ceramics
    C.Meis. Torino University, Italy, July 2003. Invited lecture.
  • MD simulation of the a-recoil radiation damage in zirconate pyrochlores.
    C.Meis. Invited lecture. Pacific Northwest National Laboratory, USA. July 2002.
  • Radionuclides incorporation and diffusion in fluorite structures.
    C.Meis. Institute of Steel and Alloys, Moscow, Russia. May 2002. Invited lecture
  • Atomistic Modelling of displacement cascades in La2Zr2O7 pyrochlore
    A.Chartier, C.Meis and J.P. Crocombette
    5th International Symposium on “Swift heavy ions in Matter”
    Taormina, Italy, May 22-25, 2002.
  • Cation disorder and defect migration in La2Zr2O7
    C.Meis, A.Chartier, R.L.Corrales and W.J.Weber
    11th International Conference on Irradiation effects in Insulators.
    Lisbon, Portugal, September 2001.
  • Theoretical methods for the calculation of threshold displacement energies in ceramics.
    C.Meis, GANIL-CIRIL, Caen, France, June 2001. Invited lecture.
  • Cs incorporation and diffusion in Ca10(PO4)6F2, Ca4La 6(SiO4)6F2, Ca2La8(SiO4)6O2
    A.Chartier and C.Meis. Fifth international Conference on Diffusion in Materials.
    Defect and Diffusion Forum Vols 194-199 (2001) pp 303-309. Scitec Switzerland.
  • Molecular dynamics simulation of the a-recoil nucleus displacement cascade in Zirconolite
    L.Veiller, J-P Crocombette, C.Meis et D. Ghaleb
    ICEM 01, 8th International conference on radioactive waste management and environmental remediation, Bruges, Belgiume, September 2001.
  • Simulation studies on actinides immobilization in ceramics
    C.Meis. Invited lecture. Pacific North-west National Laboratory, USA, July 2001.
  • Vers la modélisation de cascades de déplacements dans la zirconolite
    L.Veiller, J-P Crocombette, C.Meis et D. Ghaleb
    Colloque de métallurgie de l’INSTN, CEA-Saclay, juin 2000.
  • Cesium incorporation and diffusion in apatites
    A.Chartier, C.Meis and J.D.Gale
    Fifth Internantional Conference on Diffusion in Materials (DIMAT)
    Paris, France. July 17-21, 2000.
  • Calculation of structural and thermodynamic properties of Pu-doped Thorium Phosphate Diphosphate Th4-xPux(PO4)4P2O7
    C.Meis, A.Chartier, N.Dacheux and M.Genet
    “Plutonium Futures – The Science “organized by Los Alamos National Laboratory. Santa Fe, New Mexico, USA, July 10-13, 2000.
  • Modelling complex oxides for MD studies
    C.Meis. Invited lecture.
    Radiation effects in oxides meeting, organized by R.Ewing, Santa Fe, July 8-9, 2000.
  • Computational study of plutonium-neodymium fluorobritholite. Thermodynamic properties and threshold displacement energies.
    C.Meis. Invited lecture. 102nd Annual Meeting, American Ceramic Society, St Louis – USA, April 30, 2000.
  • Plutonium incorporation and lattice migration in apatites.
    «HLW and Pu Immobilization Meeting » INSTN – Saclay.
    C.Meis
    Organized by C.Meis, J.Carpena and C.Fillet. CEA-Saclay, France, April 1999.
  • Molecular Dynamics study of a nuclear waste glass matrix with plutonium
    C.Meis, J-M Delhaye and D.Ghaleb
    Marerials Research Society Symposium, Boston, USA November 1998.
  • Uranium and plutonium lattice diffusion in zircon
    C.Meis. Invited lecture: “Zircon meeting”, Cambridge University, U.K, March 1998.
  • Study of the solubility limit of oxygen vacancies in TiO2-x
    C.Meis. Material Research Society Congress, Hamburg University,
    Germany, May 1996.
  • Stable isotope separation by Ion Cyclotron Resonance.
    C.Meis. Invited lecture. Kurtchatov Institute, Moscow, Russia, December 1994.
  • Ray-tracing of hyper-frequency waves in a flaring magnetic field.
    C.Meis. Invited lecture. Kurtchatov Institute, Moscow, Russia, December 1994.
  • ECR plasma source in ICR isotope separation device
    International Conference on Plasma Physics
    C.Meis, A.C.La Fontaine, P.Louvet, R.L.Meyer
    June 29- july 3, Innsbruck, Austria, 1992.
  • Electron cyclotron resonance plasma heating in a flaring magnetic field
    International Conference on Radio-frequency Power in Plasmas.
    C.Meis, A.C.La Fontaine, P.Louvet, R.L.Meyer
    Charleston, USA, July 1991.
  • High energy plasma beam source operated by a cw CO2 laser
    C.Meis, P.Asselin,R.Campargue and A.Lebehot
    17th International Symposium of Rarefied Gas Dynamics. Germany, June 1990.
  • Doppler effects in stored mercury ion clock
    C.Meis, M.Desaintfuscien and M.Jardino
    2nd European Frequency and Time Forum. Neuchâtel, Suisse, March 16-18, 1988.
  • Relativistic Doppler effect in stored ions spectroscopy.
    C.Meis, M.Desaintfuscien and M.Jardino
    Eleventh International conference on Atomic Physics. Paris, Jully 4- 9, 1988.
  • Relativistic Doppler effects in stored ions frequency standard
    C.Meis, M.Desaintfuscien and M.Jardino
    International Symposium on Frequency Standards. Stockholm, Sweden, May 1988.
  • Thermal effects in ionic clouds stored in RF trap
    C.Meis, M.Desaintfuscien and M.Jardino
    4th International Symposium on Atomic Frequency Standards. Ancone, Italy, May 1987.
  • Ion dynamics stored in radiofrequency traps
    C.Meis, M.Desaintfuscien and M.Jardino
    Atomic physics and atomic frequency standards. Helsinki, Finland, Jully 1986.
  • Effet Doppler relativiste des ions confinés dans de trappes radiofréquences.
    C.Meis, M.Desaintfuscien and M.Jardino
    Congrès de la Société Française de Physique, Strasbourg, Juin 1986.