1. Sang-Kil Son and Shih-I Chu, “A new 3D grid method for accurate electronic structure calculation of polyatomic molecules: The Voronoi-cell finite difference method” in The 39th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, State College, Pennsylvania, May 27-31, 2008) [poster].
2. Sang-Kil Son and Shih-I Chu, “Theoretical study of orientation-dependent multiphoton ionization of polyatomic molecules in intense ultrashort laser fields: A new time-dependent Voronoi-cell finite difference method,” Chem. Phys. 366, 91–102 (2009).
3. Sang-Kil Son and Shih-I Chu, “Multiple orbital contribution in multiphoton ionization of H₂O in intense ultrafast laser fields” in International Conference on Attosecond Physics (Manhattan, Kansas, July 28-August 1, 2009) [poster].
4. Sang-Kil Son and Shih-I Chu, “Multielectron Effects on Strong-field Multiphoton Ionization of Polyatomic Molecules” in Kansas Physical Chemistry Symposium (University of Kansas, Lawrence, Kansas, United States, November 7, 2009) [oral presentation].
5. Sang-Kil Son, “New Development of Theoretical and Computational Methods for Probing Strong-Field Multiphoton Processes,” Ph.D. Thesis, University of Kansas (2009).
6. Sang-Kil Son, “Theoretical study of strong-field multiphoton ionization of polyatomic molecules: a new time-dependent Voronoi-cell finite difference method” in CFEL Seminar (CFEL, DESY, Hamburg, Germany, July 23, 2010) [oral presentation].
7. Sang-Kil Son, “Voronoi-cell finite difference method for accurate electronic structure calculation of polyatomic molecules on unstructured grids,” J. Comput. Phys. 230, 2160–2173 (2011).
8. Yajiang Hao, Ludger Inhester, Kota Hanasaki, Sang-Kil Son, and Robin Santra, “Efficient electronic structure calculation for molecular ionization dynamics at high x-ray intensity,” Struct. Dyn. 2, 041707 (2015) [special issue on biology with x-ray lasers 2].
9. Yajiang Hao, Ludger Inhester, Sang-Kil Son, and Robin Santra, “Electronic structure calculations of multiple core hole states in molecules” in DPG Spring Meeting of the Section AMOP (German Physical Society, Heidelberg, Germany, March 23-27, 2015).
10. Ludger Inhester, Kota Hanasaki, Yajiang Hao, Sang-Kil Son, and Robin Santra, “X-ray multiphoton ionization dynamics of a water molecule irradiated by an x-ray free-electron laser pulse,” Phys. Rev. A 94, 023422 (2016).
11. Ludger Inhester, Kota Hanasaki, Oriol Vendrell, Sang-Kil Son, and Robin Santra, “Ionization and fragmentation dynamics of molecules at high x-ray intensity” in DPG Spring Meeting of the Section AMOP (German Physical Society, Hanover, Germany, February 29-March 4, 2016).
12. Julia M. Schäfer, Ludger Inhester, Sang-Kil Son, Reinhold F. Fink, and Robin Santra, “Electron and fluorescence spectra of a water molecule irradiated by an x-ray free-electron laser pulse,” Phys. Rev. A 97, 053415 (2018).
13. Julia M. Schäfer, Ludger Inhester, Sang-Kil Son, Reinhold F. Fink, and Robin Santra, “Electron spectra of a water molecule irradiated by an x-ray free-electron laser pulse” in DPG Spring Meeting of the Section AMOP (German Physical Society, Erlangen, Germany, March 4-9, 2018).
14. Julia M. Schäfer, Ludger Inhester, Sang-Kil Son, Reinhold F. Fink, and Robin Santra, “Electron and fluorescence spectra of a water molecule irradiated by an x-ray free-electron laser pulse” in 21st International Conference on Ultrafast Phenomena (Hamburg, Germany, July 15-20, 2018).