Son, Sang-Kil, Ph.D.

Personal Information vCard

• E-mail : sangkil.son@cfel.de
• Telephone : +49-40-8998-6306
• Homepage : wavelet.chem.ku.edu/~sangkil/ (this page) | www.zannavi.com (Korean only)
• Spouse: Han, Huijong

Research Interests

Theoretical atomic, molecular, and optical physics
X-ray free-electron laser (FEL)-driven science
Attosecond and strong-field physics
Time-dependent density functional theory (TDDFT)
Quantum computation and quantum information
Relativistic effects on atoms and molecules
Computational quantum chemistry, High performance computing

Research Highlights

XATOM: all about x-ray atomic physics	MAD at high x-ray intensity
New development of numerical grid-based methods	Strong-field multiphoton processes in polyatomic molecules	Frequency comb structure and coherent control	Multiphoton quantum interference in a superconducting qubit

Research Skills

• Code development for XATOM
• Code development for density functional theory (DFT), time-dependent density functional theory (TDDFT), and Floquet formalism
• Code development for generalized pseudospectral (GPS) method, Voronoi-cell finite difference (VFD) method, and their extensions to time-dependent problems
• Scientific programing with Fortran 77/90 and math libraries
  Application programming with C, C++, and shell scripting
  Web programming with PHP/MySQL and Javascript
  
• Computational quantum chemistry program: Gaussian, GAMESS, ACES II, Molfdir, HyperChem, and octopus

Education

Mar. 1991 ~ Feb. 1993	Busan High School of Science, Korea
Mar. 1993 ~ Feb. 1997	B.S. in Chemistry, KAIST, Korea (Full Scholarship from Government)
Mar. 1997 ~ Feb. 1999	M.S. in Physical Chemistry, KAIST, Korea (Full Scholarship from Government) Advisor: Prof. Yoon Sup Lee Two-component calculations for polyatomic hydrides and fluorides containing superheavy elements 113 and 114, M.S. Thesis, KAIST (1999) [BibTeX][pdf][abstract]
Aug. 2003 ~ Dec. 2009	Ph.D. in Physical Chemistry, University of Kansas, United States (Research/Teaching Assistantship) Advisor: Watkins Distinguished Prof. Shih-I Chu New Development of Theoretical and Computational Methods for Probing Strong-Field Multiphoton Processes, Ph.D. Thesis, University of Kansas (2009) [BibTeX][pdf][slide: 17Mb][abstract]

Working Experiences

Jun. 2010 ~ present

Post-Doctoral Fellow, CFEL, DESY, Germany Advisor: Prof. Dr. Robin Santra

Publications

1. Young-Kyu Han, Sang-Kil Son, Yoon Jeong Choi, and Yoon Sup Lee, Structures and stabilities for halides and oxides of transactinide elements Rf, Db, and Sg calculated by relativistic effective core potential methods, J. Phys. Chem. A 103, 9109–9115 (1999) [BibTeX][link][pdf][abstract]
2. Chang Seop Hong, Sang-Kil Son, Yoon Sup Lee, Moo-Jin Jun, and Youngkyu Do, High-dimensional manganese(II) compounds with noncovalent and/or covalent bonds derived from flexible ligands: Self-assembly and structural transformation, Inorg. Chem. 38, 5602–5610 (1999) [BibTeX][link][pdf][abstract]
3. Young-Kyu Han, Cheolbeom Bae, Sang-Kil Son, and Yoon Sup Lee, Spin-orbit effects on the transactinide p-block element monohydrides MH (M=element 113-118), J. Chem. Phys. 112, 2684–2691 (2000) [BibTeX][link][pdf][abstract]
4. Chang Seop Hong, Ja-eung Koo, Sang-Kil Son, Yoon Sup Lee, Yaung-Soo Kim et al., Unusual ferromagnetic couplings in single end-to-end azide-bridged cobalt(II) and nickel(II) chain systems, Chem. Eur. J. 7, 4243–4252 (2001) [BibTeX][link][pdf][abstract]
5. Young-Kyu Han, Kyoung Hoon Kim, Sang-Kil Son, and Yoon Sup Lee, Effects of intramolecular basis set superposition error on conformational energy difference of 1,2-difluoroethane and 1,2-dimethoxyethane, Bull. Korean Chem. Soc. 23, 1267–1271 (2002) [BibTeX][link][pdf][abstract]
6. Juan J. Carrera, Sang-Kil Son, and Shih-I Chu, Ab initio theoretical investigation of the frequency comb structure and coherence in the vuv-xuv regimes via high-order harmonic generation, Phys. Rev. A 77, 031401(R) (2008) [BibTeX][link][pdf][abstract]
7. Sang-Kil Son and Shih-I Chu, Many-mode Floquet theoretical approach for coherent control of multiphoton dynamics driven by intense frequency-comb laser fields, Phys. Rev. A 77, 063406 (2008) [BibTeX][link][pdf][abstract]
8. Sang-Kil Son, Siyuan Han, and Shih-I Chu, Floquet formulation for the investigation of multiphoton quantum interference in a superconducting qubit driven by a strong ac field, Phys. Rev. A 79, 032301 (2009) [BibTeX][link][pdf][abstract]
9. Sang-Kil Son and Shih-I Chu, Multielectron effects on the orientation dependence and photoelectron angular distribution of multiphoton ionization of CO₂ in strong laser fields, Phys. Rev. A 80, 011403(R) (2009) [BibTeX][link][pdf][abstract]
10. 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) [BibTeX][link][pdf][abstract]
11. Sang-Kil Son, Dmitry A. Telnov, and Shih-I Chu, Probing the origin of elliptical high-order harmonic generation from aligned molecules in linearly polarized laser fields, Phys. Rev. A 82, 043829 (2010) [BibTeX][link][pdf][abstract]
12. 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) [BibTeX][link][pdf][abstract]
13. Sang-Kil Son, Linda Young, and Robin Santra, Impact of hollow-atom formation on coherent x-ray scattering at high intensity, Phys. Rev. A 83, 033402 (2011) [BibTeX][link][pdf][abstract]
14. Gilles Doumy, C. Roedig, Sang-Kil Son, C. I. Blaga, A. D. DiChiara et al., Nonlinear atomic response to intense ultrashort x rays, Phys. Rev. Lett. 106, 083002 (2011) [BibTeX][link][pdf][abstract]
15. Sang-Kil Son, Henry N. Chapman, and Robin Santra, Multiwavelength anomalous diffraction at high x-ray intensity, Phys. Rev. Lett. 107, 218102 (2011) [BibTeX][link][pdf][abstract]
16. Benedikt Rudek, Sang-Kil Son, Lutz M. Foucar, Sascha W. Epp, Benjamin Erk et al., Ultra-efficient ionization of heavy atoms by intense X-ray free-electron laser pulses, (submitted, 2012) [BibTeX]
17. Arina Sytcheva, Stefan Pabst, Sang-Kil Son, and Robin Santra, Enhanced nonlinear response of Ne⁸⁺ to intense ultrafast x rays, Phys. Rev. A 85, 023414 (2012) [BibTeX][link][pdf][abstract]
18. R. W. Dunford, S. H. Southworth, D. Ray, E. P. Kanter, B. Krässig et al., Interatomic Coulombic decay in Xe K-shell vacancy decay of XeF₂, (submitted, 2012) [BibTeX][abstract]
19. 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, (submitted, 2012) [BibTeX][abstract]

Talks

1. 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, November 7, 2009) [oral presentation] [BibTeX][slide: 4Mb][abstract]
2. 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] [BibTeX][link][pdf][slide: 6Mb][abstract]
3. Gilles Doumy, C. Roedig, Sang-Kil Son, C. I. Blaga, A. D. DiChiara et al., Nonlinear atomic response to ultraintense and ultrashort x-ray pulses in 75th Annual Meeting of the DPG and DPG Spring Meeting (German Physical Society, Dresden, Germany, March 13-18, 2011) [oral presentation] [BibTeX][link][slide: 3Mb][abstract]
4. Sang-Kil Son, Henry N. Chapman, and Robin Santra, Multi-wavelength anomalous diffraction phasing method at high intensity in New Science Opportunities at FLASH (DESY, Hamburg, Germany, October 12-14, 2011) [oral presentation] [BibTeX][link][pdf][slide: 8Mb][abstract]
5. 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] [BibTeX][link][pdf][slide: 9Mb][abstract]
6. Sang-Kil Son, Henry N. Chapman, and Robin Santra, Multiwavelength anomalous diffraction at high x-ray intensity in DPG Spring Meeting of the Section AMOP (German Physical Society, Stuttgart, Germany, March 12-16, 2012) [oral presentation] [BibTeX][link][slide: 4Mb][abstract]

Posters and other participations

1. Young-Kyu Han, Kyoung Hoon Kim, Sang-Kil Son, and Yoon Sup Lee, The Effects of Intramolecular Basis Set Superposition Error on Conformational Energy Differences: 1,2-Difluoroethane and 1,2-Dimethoxyethane in Abstract of the 80th Annual Meeting of the Korean Chemical Society (Oct. 24-25, 1997), p. 150 [BibTeX][abstract]
2. Sang-Kil Son, Young-Kyu Han, and Yoon Sup Lee, Two-component Calculations for Polyatomic Hydrides and Fluorides Containing Superheavy Elements 113 and 114 in Abstract of the 82nd Annual Meeting of the Korean Chemical Society (Oct. 23-24, 1998), p. 143 [BibTeX][slide: 852kb][abstract]
3. Young-Kyu Han, Cheolbeom Bae, Sang-Kil Son, and Yoon Sup Lee, Two-component Calculations for the Molecules Containing Superheavy Elements in Abstract of the 82nd Annual Meeting of the Korean Chemical Society (Oct. 23-24, 1998), p. 77 [BibTeX][abstract]
4. Sang-Kil Son and Shih-I Chu, Precision calculation of intense-laser-field multiphoton ionization (MPI) rates of H₂⁺ at critical internuclear distances in The 37th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Knoxville, Tennessee, May 16-20, 2006) [BibTeX][link][slide: 736kb][abstract]
5. Sang-Kil Son and Shih-I Chu, Many-mode Floquet theoretical approach for probing high harmonic generation in intense frequency-comb laser fields in The 38th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Calgary, Alberta, Canada, June 5-9, 2007) [BibTeX][link][slide: 1Mb][abstract]
6. Sang-Kil Son and Shih-I Chu, Floquet formulation for the investigation of multiphoton quantum interference in a superconducting qubit driven by a strong field in The 38th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Calgary, Alberta, Canada, June 5-9, 2007) [BibTeX][link][slide: 3Mb][abstract]
7. Juan J. Carrera, Sang-Kil Son, and Shih-I Chu, Ab initio theoretical investigation of the frequency comb structure in the XUV regime via high harmonic generation in The 38th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Calgary, Alberta, Canada, June 5-9, 2007) [BibTeX][link][abstract]
8. 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) [BibTeX][link][slide: 568kb][abstract]
9. 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) [BibTeX][link][pdf][slide: 2Mb][abstract]
10. Sang-Kil Son, Dmitry A. Telnov, and Shih-I Chu, Ab initio study of the ellipticity of molecular high harmonic generation driven by linearly polarized laser fields in The 41th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Houston, Texas, May 25-29, 2010) [BibTeX][link][slide: 896kb][abstract]
11. Sang-Kil Son, Linda Young, and Robin Santra, Impact of hollow-atom formation on coherent x-ray scattering at high intensity in European XFEL and HASYLAB Users' Meeting (DESY, Hamburg, Germany, January 26-28, 2011) [BibTeX][link][poster: 2Mb][abstract]
12. Sang-Kil Son, Linda Young, and Robin Santra, Impact of hollow-atom formation on coherent x-ray scattering at high intensity in 75th Annual Meeting of the DPG and DPG Spring Meeting (German Physical Society, Dresden, Germany, March 13-18, 2011) [BibTeX][link][abstract]
13. 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) [BibTeX][poster: 3Mb][abstract]
14. 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, UK, July 19-22, 2011) [BibTeX][link][pdf][poster: 4Mb][abstract]
15. 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) [BibTeX][link][poster: 4Mb][abstract]
16. Sang-Kil Son, Henry N. Chapman, and Robin Santra, Multiwavelength anomalous diffraction at high x-ray intensity in European XFEL and HASYLAB Users' Meeting (DESY, Hamburg, Germany, January 25-27, 2012) [BibTeX][link][poster: 4Mb][abstract]
17. 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, February 12-17, 2012) [BibTeX][link][abstract]
18. Arina Sytcheva, Stefan Pabst, Sang-Kil Son, and Robin Santra, Enhanced nonlinear response of Ne⁸⁺ to intense ultrafast X-rays in DPG Spring Meeting of the Section AMOP (German Physical Society, Stuttgart, Germany, March 12-16, 2012) [BibTeX][link][abstract]
19. Robert W. Dunford, Stephen H. Southworth, Dipanwita Ray, Elliot P. Kanter, Bertold Kraessig et al., Molecular fragmentation and charge redistribution in XeF₂ after K-shell photoionization in DPG Spring Meeting of the Section AMOP (German Physical Society, Stuttgart, Germany, March 12-16, 2012) [BibTeX][link][abstract]
20. Benedikt Rudek, Daniel Rolles, Artem Rudenko, Sang-Kil Son, Lutz Foucar et al., Resonance-Enhanced X-ray Multiple Ionization of Heavy Atoms at LCLS in DPG Spring Meeting of the Section AMOP (German Physical Society, Stuttgart, Germany, March 12-16, 2012) [BibTeX][link][abstract]
21. D. Ray, R. W. Dunford, S. H. Southworth, E. P. Kanter, B. Krässig et al., 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) [BibTeX][link][abstract]
22. Siddharth Bhardwaj, Sang-Kil Son, Robin Santra, and Franz X. Kärtner, Recombination Amplitude Calculation for Noble Gases beyond Strong Field Approximation in Length and Acceleration forms in CLEO (San Jose, California, May 6-11, 2012) [BibTeX][link]
23. Sang-Kil Son, Henry N. Chapman, and Robin Santra, Multiwavelength anomalous diffraction at high x-ray intensity in Science at FELs (DESY, Hamburg, Germany, 15-18 July, 2012) [BibTeX][link][pdf][abstract]
24. L. Müller, C. Gutt, B. Pfau, S. Schaffert, J. Geilhufe et al., Breakdown of the resonant magnetic X-ray scattering cross-section during intense FEL X-ray exposure in Science at FELs (DESY, Hamburg, Germany, 15-18 July, 2012) [BibTeX][link]

Academic Honors

Sep. 1992	Bronze medal at the 4th High School Student Chemistry Competition held by Ministry of Education, Korea
May. 2004	H. P. Cady Award for the best first year graduate student in Dept. of Chemistry, KU
Apr. 2006	Paul and Helen Gilles Award in Physical Chemistry in Dept. of Chemistry, KU
May. 2008	McCollum Research Scholarship in Dept. of Chemistry, KU
May. 2009	Higuchi Doctoral Progress Award in Dept. of Chemistry, KU

Experiences and Extra Curricular Activities

Mar. 1993 ~ Feb. 1997	KMUG : KAIST Mac User Group (President in 1995)
May. 1994 ~ Feb. 1999	Grimijua : Fine Arts Campus Club (Starting member / Held and Participated in 3 campus exhibitions)
Jan. 1996 ~ Jan. 1996	Teaching Assistant in the 28th International Chemistry Olympiad Training Winter School for the High School Student, Chemistry Competition Finalists
Feb. 1999 ~ Sep. 1999	KLUSTER : KAIST Cluster Group (Discussed Linux Clustering)
Oct. 1999 ~ Jan. 2003	Republic of Korea Air Force Officer (Discharged as First Lieutenant)
Feb. 2003 ~ Jun. 2003	Visiting Researcher, KAIST, Korea
Aug. 2003 ~ Dec. 2009	Graduate Research Assistant, KU, U.S. Grading: [CHEM648] [CHEM750] [CHEM752] [CHEM915]
Aug. 2006 ~ Apr. 2007	Graduate Teaching Assistant, KU, U.S. [CHEM184 Lab] [CHEM188 Lab]
Jul. 2007 ~ Sep. 2007	Visiting Researcher, NTU, Taiwan
Jan. 2010 ~ May. 2010	Research Assistant, KU, U.S.