1. Sang-Kil Son and Robin Santra, “XATOM: an integrated toolkit for X-ray and atomic physics” in 1st CFEL Symposium 2011 (CFEL, Sylt, Germany, March 18-20, 2011) [poster].
  2. Sang-Kil Son and Robin Santra, “XATOM: an integrated toolkit for X-ray and atomic physics” in The 17th International Conference on Atomic Processes in Plasmas (Queen's University, Belfast, United Kingdom, July 19-22, 2011) [poster].
  3. R. W. Dunford, S. H. Southworth, D. Ray, E. P. Kanter, B. Krässig, L. Young, D. A. Arms, E. M. Dufresne, D. A. Walko, O. Vendrell, Sang-Kil Son, and R. Santra, “Evidence for interatomic Coulombic decay in Xe K-shell-vacancy decay of XeF2,” Phys. Rev. A 86, 033401 (2012).
  4. D. Ray, R. W. Dunford, S. H. Southworth, E. P. Kanter, B. Krässig, L. Young, D. A. Arms, E. M. Dufresne, D. A. Walko, O. Vendrell, Sang-Kil Son, and R. Santra, “Interatomic Coulombic Decay (ICD) in deep inner-shell vacancy cascades” in The 43rd Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Orange County, California, June 4-8, 2012).
  5. Benedikt Rudek, Sang-Kil Son, Lutz Foucar, Sascha W. Epp, Benjamin Erk, Robert Hartmann, Marcus Adolph, Robert Andritschke, Andrew Aquila, Nora Berrah, Christoph Bostedt, John Bozek, Nicola Coppola, Frank Filsinger, Hubert Gorke, Tais Gorkhover, Heinz Graafsma, Lars Gumprecht, Andreas Hartmann, Günter Hauser, Sven Herrmann, Helmut Hirsemann, Peter Holl, André Hömke, Loic Journel, Christian Kaiser, Nils Kimmel, Faton Krasniqi, Kai-Uwe Kühnel, Michael Matysek, Marc Messerschmidt, Danilo Miesner, Thomas Möller, Robert Moshammer, Kiyonobu Nagaya, Björn Nilsson, Guillaume Potdevin, Daniel Pietschner, Christian Reich, Daniela Rupp, Gerhard Schaller, Ilme Schlichting, Carlo Schmidt, Florian Schopper, Sebastian Schorb, Claus-Dieter Schröter, Joachim Schulz, Marc Simon, Heike Soltau, Lothar Strüder, Kiyoshi Ueda, Georg Weidenspointner, Robin Santra, Joachim Ullrich, Artem Rudenko, and Daniel Rolles, “Ultra-efficient ionization of heavy atoms by intense x-ray free-electron laser pulses,” Nat. Photon. 6, 858–865 (2012).
  6. Sang-Kil Son, “Electronic response to X-ray free-electron laser pulses” in The 3rd CQSE International Workshop on Atomic, Molecular, and Ultrafast Science and Technology (National Taiwan University, Taipei, Taiwan, January 7-8, 2012) [invited talk].
  7. Sang-Kil Son and Robin Santra, “XATOM: an integrated toolkit for X-ray and atomic physics” in The 3rd CQSE International Workshop on Atomic, Molecular, and Ultrafast Science and Technology (National Taiwan University, Taipei, Taiwan, January 7-8, 2012) [poster].
  8. Sang-Kil Son and Robin Santra, “XATOM: an integrated toolkit for X-ray and atomic physics” in Photoions, Photoionization and Photodetachment (Gordon Research Conference, Galveston, Texas, US, February 12-17, 2012) [poster].
  9. Sang-Kil Son and Robin Santra, “Monte Carlo calculation of ion, electron, and photon spectra of xenon atoms in x-ray free-electron laser pulses,” Phys. Rev. A 85, 063415 (2012).
  10. Sang-Kil Son, “Electronic response to X-ray free-electron laser pulses” in MPC-AS seminar (Max Planck Center for Attosecond Science, POSTECH, Pohang, Korea, November 23, 2012) [oral presentation].
  11. H. Fukuzawa, Sang-Kil Son, K. Motomura, S. Mondal, K. Nagaya, S. Wada, X. -J. Liu, R. Feifel, T. Tachibana, Y. Ito, M. Kimura, T. Sakai, K. Matsunami, H. Hayashita, J. Kajikawa, P. Johnsson, M. Siano, E. Kukk, B. Rudek, B. Erk, L. Foucar, E. Robert, C. Miron, K. Tono, Y. Inubushi, T. Hatsui, M. Yabashi, M. Yao, R. Santra, and K. Ueda, “Deep inner-shell multiphoton ionization by intense x-ray free-electron laser pulses,” Phys. Rev. Lett. 110, 173005 (2013).
  12. H. Fukuzawa, K. Motomura, Sang-Kil Son, S. Mondal, T. Tachibana, Y. Ito, M. Kimura, K. Nagaya, T. Sakai, K. Matsunami, S. Wada, H. Hayashita, J. Kajikawa, X. -J. Liu, R. Feifel, P. Johnsson, M. Siano, E. Kukk, B. Rudek, B. Erk, L. Foucar, E. Robert, C. Miron, K. Tono, Y. Inubushi, T. Hatsui, M. Yabashi, M. Yao, R. Santra, and K. Ueda, “Sequential multiphoton multiple ionization of Ar and Xe by X-ray free electron laser pulses at SACLA” in XXVIII International Conference on Photonic, Electronic and Atomic Collisions (Lanzhou, China, July 24-30, 2013).
  13. K. Motomura, H. Fukuzawa, Sang-Kil Son, S. Mondal, T. Tachibana, Y. Ito, M. Kimura, K. Nagaya, T. Sakai, K. Matsunami, S. Wada, H. Hayashita, J. Kajikawa, X. -J. Liu, R. Feifel, P. Johnsson, M. Siano, E. Kukk, B. Rudek, B. Erk, L. Foucar, E. Robert, C. Miron, K. Tono, Y. Inubushi, T. Hatsui, M. Yabashi, M. Yao, R. Santra, and K. Ueda, “Sequential multiphoton multiple ionization of atomic argon and xenon irradiated by x-ray free-electron laser pulses at SACLA,” J. Phys. B: At. Mol. Opt. Phys. 46, 164024 (2013) [special issue on frontiers of free-electron laser science].
  14. Sang-Kil Son and Robin Santra, “Inner-shell multiphoton multiple ionization dynamics of xenon atoms by x-ray free-electron laser pulses” in DPG Spring Meeting of the Section AMOP (German Physical Society, Hanover, Germany, March 18-22, 2013) [oral presentation].
  15. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Seminar on Dynamical Aspects of Theoretical Chemistry (Department of Chemistry, Free University of Berlin, Berlin, Germany, November 19, 2015) [invited talk].
  16. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Physical Colloquium (Institute of Physics, University of Kassel, Kassel, Germany, December 3, 2015) [invited talk].
  17. Tetsuya Tachibana, Zoltan Jurek, Hironobu Fukuzawa, Koji Motomura, Kiyonobu Nagaya, Shin-ichi Wada, Per Johnsson, Marco Siano, S. Mondal, Yuta Ito, M. Kimura, T. Sakai, K. Matsunami, H. Hayashita, J. Kajikawa, Xiao-Jing Liu, E. Robert, Catalin Miron, Raimund Feifel, John P. Marangos, Kensuke Tono, Yuichi Inubushi, Makina Yabashi, Sang-Kil Son, Beata Ziaja, Makoto Yao, Robin Santra, and Kiyoshi Ueda, “Nanoplasma formation by high intensity hard x-rays,” Sci. Rep. 5, 10977 (2015).
  18. Sang-Kil Son, “Ultrafast ionization and fragmentation dynamics of molecules at high x-ray intensity” in The 47th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Providence, Rhode Island, United States, May 23-27, 2016) [invited talk].
  19. Sang-Kil Son, “Electronic structure at high x-ray intensity” in The electronic-structure problem in theoretical strong-field physics (ITAMP, Harvard University, Cambridge, Massachusetts, United States, October 10-14, 2016) [invited talk].
  20. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Physics and Photon Science Colloquium (Department of Physics and Photon Science, GIST, Gwangju, Korea, October 18, 2016) [invited talk].
  21. Sang-Kil Son, “Ultrafast ionization and fragmentation dynamics of molecules at high x-ray intensity” in Korean Physical Society Fall Meeting (Korean Physical Society, Gwangju, Korea, October 19-21, 2016) [invited talk].
  22. Koudai Toyota, Sang-Kil Son, and Robin Santra, “Relativistic effect on x-ray multiphoton ionization dynamics of xenon atoms” in DPG Spring Meeting of the Section AMOP (German Physical Society, Hanover, Germany, February 29-March 4, 2016).
  23. Sang-Kil Son, Otfried Geffert, and Robin Santra, “Compton spectra of atoms at high x-ray intensity,” J. Phys. B: At. Mol. Opt. Phys. 50, 064003 (2017) [special issue: emerging leaders].
  24. Sang-Kil Son, “What happens to atoms and molecules during X-ray free-electron laser pulses?” in European XFEL Theory Seminar (European XFEL, Schenefeld, Germany, June 22, 2017) [invited talk].
  25. Sang-Kil Son, “Electronic structure of atoms and molecules at high x-ray intensity” in New trends in theory for experiments at advanced light sources (European XFEL and CFEL, Schenefeld and Hamburg, Germany, November 29-December 1, 2017) [invited talk].
  26. Koudai Toyota, Sang-Kil Son, and Robin Santra, “Interplay between relativistic energy corrections and resonant excitations in x-ray multiphoton ionization dynamics of Xe atoms,” Phys. Rev. A 95, 043412 (2017).
  27. Benedikt Rudek, Koudai Toyota, Lutz Foucar, Benjamin Erk, Rebecca Boll, Cédric Bomme, Jonathan Correa, Sebastian Carron, Sébastien Boutet, Garth J. Williams, Ken R. Ferguson, Roberto Alonso-Mori, Jason E. Koglin, Tais Gorkhover, Maximilian Bucher, Carl Stefan Lehmann, Bertold Krässig, Stephen H. Southworth, Linda Young, Christoph Bostedt, Kiyoshi Ueda, Tatiana Marchenko, Marc Simon, Zoltan Jurek, Robin Santra, Artem Rudenko, Sang-Kil Son, and Daniel Rolles, “Relativistic and resonant effects in the ionization of heavy atoms by ultra-intense hard X-rays,” Nat. Commun. 9, 4200 (2018).
  28. Sang-Kil Son, “Ultrafast ionization and fragmentation dynamics of molecules at high x-ray intensity” in The 7th Topical Conference of the Indian Society of Atomic and Molecular Physics (Indian Society of Atomic and Molecular Physics, Tirupati, India, January 6-8, 2018) [invited talk].
  29. Sang-Kil Son, “Ultrafast ionization and fragmentation dynamics of molecules at high x-ray intensity” in Light-Matter Interaction: Recent Advances in Theory (DESY, Hamburg, Germany, January 25, 2018) in Satellite Workshop of European XFEL and DESY Photon Science Users' Meeting 2018 [invited talk].
  30. Sang-Kil Son, Koudai Toyota, Ludger Inhester, Yajiang Hao, Kota Hanasaki, Robin Santra, Benedikt Rudek, Artem Rudenko, and Daniel Rolles, “Giant x-ray multiphoton ionization of atoms and molecules” in Multiphoton Processes (Gordon Research Conference, Bryant University, Rhode Island, US, June 24-29, 2018) [poster].
  31. Sang-Kil Son, “Ultrafast dynamics of atoms and molecules with x-ray free-electron lasers” in Attosecond Physics at the Nanoscale (Center for Theoretical Physics of Complex Systems, Institute for Basic Science, Daejeon, Korea, October 29-November 2, 2018) [invited talk].
  32. Sang-Kil Son, “What happens to atoms and molecules at high x-ray intensity?” in Special seminar (Department of Chemistry, KAIST, Daejeon, Korea, October 31, 2018) [oral presentation].
  33. Sang-Kil Son, Koudai Toyota, Ludger Inhester, Yajiang Hao, Kota Hanasaki, Robin Santra, Benedikt Rudek, Artem Rudenko, and Daniel Rolles, “Giant x-ray multiphoton ionization of atoms and molecules” in European XFEL and DESY Photon Science Users' Meeting (DESY, Hamburg, Germany, January 23-25, 2019) [poster].
  34. Sang-Kil Son, Koudai Toyota, Robin Santra, Benedikt Rudek, Artem Rudenko, and Daniel Rolles, “Relativistic and resonant effects on x-ray multiphoton multiple ionization of heavy atoms” in 83rd Annual Meeting of the DPG and DPG Spring Meeting of the Section AMOP (German Physical Society, Rostock, Germany, March 11-15, 2019) [oral presentation].
  35. Sang-Kil Son, “Ultrafast dynamics of atoms and molecules induced by intense x-ray free-electron laser pulses” in 28th Annual International Laser Physics Workshop (Gyeongju, Korea, July 8-12, 2019) [invited talk].
  36. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Physics/BK21+ Seminar (Department of Physics, POSTECH, Pohang, Korea, July 15, 2019) [invited talk].
  37. Sang-Kil Son, “What happens to atoms and molecules during x-ray free-electron laser pulses?” in Physics Seminar (Department of Physics, UNIST, Ulsan, Korea, July 16, 2019) [invited talk].
  38. Sang-Kil Son, Rebecca Boll, and Robin Santra, “Breakdown of frustrated absorption in x-ray sequential multiphoton ionization,” Phys. Rev. Res. 2, 023053 (2020).
  39. Sang-Kil Son, “Breakdown of frustrated absorption in x-ray sequential multiphoton ionization” in CFEL-DESY Theory Seminar (CFEL, DESY, Hamburg, Germany, April 1, 2020) [oral presentation].
  40. Daria Kolbasova, Maximilian Hartmann, Rui Jin, Alexander Blättermann, Christian Ott, Sang-Kil Son, Thomas Pfeifer, and Robin Santra, “Probing ultrafast coherent dynamics in core-excited xenon by using attosecond XUV-NIR transient absorption spectroscopy,” Phys. Rev. A 103, 043102 (2021).
  41. Daria Kolbasova, Maximilian Hartmann, Rui Jin, Alexander Blättermann, Christian Ott, Sang-Kil Son, Thomas Pfeifer, and Robin Santra, “Probing ultrafast coherent dynamics in core-excited xenon by using attosecond XUV-NIR transient absorption spectroscopy” in XXXII International Conference on Photonic, Electronic and Atomic Collisions (virtual, July 20-23, 2021).
  42. A. Rörig, T. M. Baumann, B. Erk, M. Ilchen, J. Laksman, T. Mazza, M. Meyer, V. Musić, S. Pathak, D. E. Rivas, D. Rolles, R. Santra, J. M. Schäfer, S. Serkez, P. Schmidt, S. Usenko, Sang-Kil Son, and R. Boll, “Non-linear multiphoton ionisation dynamics of xenon upon irradiation by highly intense soft X-ray free-electron laser pulses” in XXXII International Conference on Photonic, Electronic and Atomic Collisions (virtual, July 20-23, 2021).
  43. Sang-Kil Son, “What happens to atoms, molecules, and dense plasmas at high x-ray intensity?” in Seminar (Laboratory for Laser Energetics, University of Rochester, Rochester, New York, United States, September 14, 2021) [invited talk].
  44. Sang-Kil Son, “Relativistic effects in x-ray multiphoton ionization dynamics” in 13th International Conference on Relativistic Effects in Heavy-Element Chemistry and Physics (Assisi, Italy, September 26-30, 2022) [invited talk].
  45. Aljoscha Rörig, Sang-Kil Son, Tommaso Mazza, Philipp Schmidt, Thomas M. Baumann, Benjamin Erk, Markus Ilchen, Joakim Laksman, Valerija Music, Shashank Pathak, Daniel E. Rivas, Daniel Rolles, Svitozar Serkez, Sergey Usenko, Robin Santra, Michael Meyer, and Rebecca Boll, “Multiple-core-hole resonance spectroscopy with ultraintense X-ray pulses,” Nat. Commun. 14, 5738 (2023).
  46. Sang-Kil Son, “New opportunities in x-ray spectroscopy at high intensity” in XFEL Special Seminar (PAL XFEL, POSTECH, Pohang, Korea, July 20, 2023) [invited talk].