Curriculum Vitae of L. K. (Ricky) ANG Nationality: Singaporean Status: Married with two children Address: Singapore University of Technology and Design 20 Dover Drive, Singapore 138682 Telephone: (65) 6499-4558; Fax: (65) 6779-5161 Email: ricky_ang@sutd.edu.sg EDUCATION University of Michigan, Ann Arbor, USA Ph.D. (in Nuclear Engr and Plasma Physics) 8/1994-6/1999 University of Michigan, Ann Arbor, USA M.S. (in Nuclear Engr and Plasma Physics) 8/1994-6/1996 National Tsinghua University, Taiwan B.S. (in Nuclear Engineering) 8/1990-6/1994 APPOINTMENTS Singapore University of Technology and Design Director, PhD program 3/2012 now Singapore University of Technology and Design, EPD Associate Professor (Tenured) 11/2011 now Nanyang Technological University, Singapore Visiting Associate Professor 11/2011-6/2013 Nanyang Technological University, Singapore Associate Professor (Tenured) 4/2008-10/2011 Inst of High Performance Computing, Singapore Adjunct Professor 4/2006-10/2011 Nanyang Technological University, Singapore Assistant Professor 9/2001 3/2008 Los Alamos National Laboratory, USA LANL Director Fellow 9/1999 8/2001 University of Michigan, USA Research Assistant 9/1994 8/1999 VISITING APPOINTMENTS National Central University, Taiwan Visiting Professor 2010 University of Michigan Visiting Scientist 2007 Los Alamos National Laboratory, USA Visiting Scientist 2003-2006, 2011 INDIVUDAL AWARDS USA AFOSR AOARD Window of Science (WOS) Visiting Scientist 2007, 2012 Finalist, NTU-EEE Excellent Teaching award 2010 USA ONR Global Visiting scientist 2009 World Knowledge Dialogue (WKD) Young Scientist Travel award 2006 Los Alamos National Laboratory Director Postdoctoral Fellowship 1999 Excellent Foreign Student Award by Taiwan 1991, 1993 Outstanding Academic Award by National Tsinghua University (Taiwan) 1991, 1993 GROUP AWARDS OCPA-APS best poster award with Yingbin Zhu (first in plasma) June 2014 OCPA-APS best poster award with Kelvin J. A. Ooi (third in photonics) June 2014 IEEE NPSS Graduate Fellowship: Yingbin Zhu April 2014 PROFESSIONAL MEMBERSHIPS Singapore local chapter chair, IEEE NPSS 2012 2013 Member, APS (American Physical Society) since 1996 Senior Member, IEEE (The Institute of Electrical and Electronic Engineers), NPSS since 1995
RESEARCH INTERESTS His research interests are in the development of theoretical scaling laws and models that are able to capture the essential physics in any interesting problems with a strong focus on the physics and applications of charge particles (electrons), lights (laser, electromagnetic wave) with materials and plasma. He enjoys strong interactions with experimental works in all phase of his research. He has worked on laser-matter interaction, multipactor discharge, energy-beam ablation, and high power microwave sources during his PhD studies. His current research topics are quantum theory of collective electron-structure interaction (space charge limiting current, beam modulation, beam-loading, noise, etc), ultra-fast laser induced electron photo-field emission, electron emission from novel materials (carbon, grapheme), charge injection in solids (organic electronics, graphene and Topological insulator), compact THz coherent radiation sources, high power multipactor discharge, and plasmonic-based photonics devices. His research projects have been funded by both Singapore and USA (AFOSR and ONR). He has published more than 70 referred journal papers [4 Physical Review Letters, 13 Applied Physics Letters, and 5 invited journal papers] and more than 100 conference presentations (~20 invited orals). ONGOING FUNDED PROJECTS 1. Quantum model of space charge limited charge injection into novel materials (Singapore MOE T2), June 2014 - May 2017 2. Modeling and design of thermal energy harvesting devices (SUTD-MIT IDC), Sept 2013 - Aug 2015 3. Design of devices operating at space charge limited condition (SUTD SRG), Nov 2011 - Oct 2014 CURRENT GROUP MEMBERS Yingbin Zhu Postdoctoral fellow April 2013 present Kelvin J. A. Ooi Postdoctoral fellow (co-funding) Oct 2013 present Changyu Hsieh SUTD-MIT postdoctoral fellow Nov 2013 present Shijun Liang PhD student Sept 2013 present Yaoli Liu Research Assistant Aug 2014 present Xi Xu Research Assistant Aug 2014 present Ahmed Sakr PhD student Jan 2015 present Yew Von Lim PhD student Jan 2015 present FORMER GROUP MEMBERS Mihir PANT SUTD RA (2012-2013) Employer: PhD student, MIT Yangjie LIU NTU PhD (2009-2013) Employer: Postdoc, UK Queen Marry Univ Song SUN NTU PhD (2009-2012) Employer: Research Scientist, ASTAR IHPC Zhong Qi JIN NTU RA (2009-2010) Employer: PhD student, Michigan State U Jian ZHANG NTU RA (2007-2008) Employer: Research Engineer, NUS Peng ZHANG NTU Master (2006-2007) Employer: PhD student, U of Michigan Li SUN NTU UG RA (2005-2006) Employer: PhD student, Harvard University William CHANDRA NTU PhD (2005-2010) Employer: Research Scientist, ASTAR DSI Lin WU NTU PhD (2005-2008) Employer: Research Scientist, ASTAR IHPC Wee Shing KOH NTU PhD (2002-2006) Employer: Group leader, ASTAR IHPC Daniel Leong NTU Master (2002-2004) Employer: Delphi, Singapore
GRADUATED PhD and Master Thesis (Main advisor for PhD and MEng) Name Degree (status) Thesis title Kevin Ooi Jian Aun NTU PhD (2013) Modelling of Plasmonic based circuit Liu Yang Jie NTU PhD (2013) Time-dependent modelling of SCL current Zhu Ying Bin NTU PhD (2013) Transit model of SCL current Sun Song NTU PhD (2012) Modelling of electron emission from graphene William Chandra NTU PhD (2010) Modelling of space charge limited current in solid Wu Lin NTU PhD (2008) Modelling of electron emission and novel applications Zhang Peng NTU MEng (2007) Modelling of short-pulse Child-Langmuir law Koh Wee Shing NTU PhD (2006) Multi-dimensional theory of SCL current Daniel Leong NTU MEng (2003) Optimization and comparison of plasma induce QWI PUBLICATION (SELECTED 20 JOURNAL PAPERS) 1. Invited: Shijun Liu, and L. K. Ang, Chiral Tunneling-assisted Over-barrier Electron Emission from Graphene, IEEE Trans Electron Dev, 61, 1764 (2014) [Based on invited talk from IVEC 2013] 2. Kelvin J. A. Ooi, Hong Son Chu, Ping Bai, and Lay Kee Ang, Electrooptical Graphene Plasmonic Logic Gates, Optics Lett. 30, 1629-1632 (2014). 3. Y. J. Liu, and L. K. Ang, Space charge effect of the time-dependent ultrafast laser excited electron emission from a metal surface, J. Phys. D: Appl. Phys. 47, 122502 (2014). 4. K. J. A. Ooi, H. S. Chu, P. Bai, and L. K. Ang, Active graphene nanoribbon plasmonic waveguide devices, J. Opt. Soc. Am. B 30, 3111 (2013). 5. M. Pant, and L. K. Ang, Time-dependent quantum tunneling and non-equilibrium heating model for the generalized Einstein photoelectric effect Phys. Rev. B 88, 195434 (2013). 6. Shijun Liu, and L. K. Ang, Over-barrier side band electron emission from graphene with timeoscillating potential, Carbon 61, 294-298 (2013). 7. Y. B. Zhu, P. Zhang, A. Valfells, L. K. Ang, and Y. Y. Lau, Novel scaling laws for the Langmuir- Blodgett solutions in cylindrical and spherical diodes, Phys. Rev. Lett. 110, 265007 (2013). 8. Shijun Liu, and L. K. Ang, Over-barrier side band electron emission from graphene with timeoscillating potential, Carbon 61, 294 (2013). 9. Invited: L. K. Ang, and M. Pant, Generalized model for ultrafast laser induced electron emission from a metal tip, Physics of Plasmas 20, 056705 (2013) (Invited paper from APS-DPP12). 10. M. Pant, and L. K. Ang, Ultrafast laser induced electron emission from multiphoton to optical tunneling, Phys. Rev. B 86 045423 (2012). 11. Y. B. Zhu, and L. K. Ang, Child-Langmuir law in Coulomb-Blockade regime, Appl. Phys. Lett. 98, 051502 (2011). 12. W. Chandra, and L. K. Ang, Space charge limited current in a gap combined of free space and solid, Appl. Phys. Lett. 96 183501 (2010). 13. L. Wu, and L. K. Ang, Non-equilibrium model of ultrafast laser induced electron photo-field emission from a dc-biased metallic surface, Phys. Rev. B 78 224112 (2008).
14. L. K. Ang, and P. Zhang, Ultrashort pulse Child-Langmuir law in quantum and relativistic regimes, Phys. Rev. Lett. 98, 164802 (2007). 15. W. Chandra, L. K. Ang, K. L. Pey, and C. M. Ng, Two-dimensional analytical Mott-Gurney law for a trapped filled solid, Appl. Phys. Lett. 90 153505 (2007). 16. W. S. Koh, and L. K. Ang, Transition from field emission to space charge limited emission in a nanogap", Appl. Phys. Lett. 89, 183107 (2006). 17. W. Lin, and L. K. Ang, Low temperature refrigeration by electron emission in a crossed-field gap, Appl. Phys. Lett. 89, 133503 (2006). 18. Invited: L. K. Ang, W. S. Koh, Y. Y. Lau and T. J. T. Kwan, Space-charge limited flows in the quantum regime", Phys. Plasmas 13, 056701 (2006). (invited paper from APS-DPP05). 19. W. S. Koh, L. K. Ang, and T. J. T. Kwan, "Three-dimensional Child-Langmuir law for uniform hot electron emission", Phys. Plasmas 12, 053107 (2005). 20. L. K. Ang, T. J. T. Kwan, and Y. Y. Lau, "New scaling of Child-Langmuir law in the quantum regime", Phys. Rev. Lett. 91, 208303 (2003). LIST OF 20 INVITED TALKS 1. L. K. Ang, Modeling of electron emission from graphene and metal tip, The 27 th International Vacuum Nanoelectronics Conference (IVNC 2014), Engelberg, Switzerland, 6 10 July (2014) 2. L. K. Ang, Modeling of electron emission from graphene and metal tip, The 8 th joint meeting of Chinese Physicists Worldwide (OCPA8), Singapore, 23-27 June (2014). 3. Kelvin Ooi (PhD student) and L. K. Ang, Electron beam excitation on doped graphene plasmon for generation of coherent radiation 2014 IEEE conference of plasma science (ICOPS), Washington DC, USA 25-29 May (2014). 4. L. K. Ang, Development of photcathode using ultrafast laser excitation, The International Conference on Plasma Science and Applications (ICPSA2013), Singapore, 4-6 December (2013). 5. Shijun Liang (PhD student) and L. K. Ang, Electron Over-barrier Emission Mechanism of Single Layer, The 14 th IEEE International Vacuum Electronics Conference, Paris, France 21-23 May (2013). 6. L. K. Ang, Modeling of Ultrafast laser induced electron emission from a sharp tip, CI2.2, The 54th Annual meeting of American Physical Society-Division of Plasma Physics (APS-DPP), Providence, Rhode Island, 29 Oct - 1 Nov (2012). 7. L. K. Ang, Modeling of Klein tunneling for electrin field emission from graphene for high current cathode, AFOSR Plasma and Electro-energetic Program Review meeting, 17 18 Jan (2012). 8. L. K. Ang, Physics and modeling of electron emission and injection from low current to high current regime, IVESC 2010 & NANOcarbon 2010, Nanjiang, China, 14-16 October (2010). 9. L. K. Ang, Theory of space charge limited current in free space and solid, Seminar, National Tsing Hua University, Taiwan, 14 June (2010). funded by Central for Mathematics and Theoretical Physics, National Central University.
10. L. K. Ang, Physics and modeling of electron emission and injection from low current to high current regime, Seminar, National Central University, Taiwan, 11 June (2010). funded by Central for Mathematics and Theoretical Physics, National Central University. 11. L. K. Ang, Electron emission from FN law to CL law and its novel applications, Seminar, Naval Research Laboratory, USA, 6 Jan (2010). funded by ONRG visiting scientist grant. 12. L. K. Ang, Space charge limited current in free space and solids, Seminar, University of Maryland, USA, 5 Jan (2010). funded by ONRG visiting scientist grant. 13. L. K. Ang, Space charge limited current in quantum and ultrafast regimes, The 7th International Vacuum Electron Source Conference, London, UK, 3-6 August (2008). 14. L. K. Ang, Modeling and Design of high efficiency compact free electron lasers at THz frequency, A*STAR THz Science and Technology, Workshop, Singapore, 29 May (2008). 15. L. K. Ang, Child-Langmuir law in the quantum regime, Topical Lecture, Plasma College Symposium, Abdus Salam International Center for Theoretical Physics, Trieste, Italy, August 20-24 (2007). 16. L. K. Ang, High Current Space-charge Limited Field Emission, Seminar, General Electric Global Research, Niskayuna, NY 12309, USA, June 7-8 (2007). funded by AFOSR AOARD 17. L. K. Ang, Quantum Child-Langmuir law and its properties, The USA AFOSR Quantum Vacuum Nano-Electronics Meeting, Arlington, VA, Sept 13 (2006). funded by AFOSR AOARD 18. L. K. Ang, Space-charge limited flow in the quantum regime, LI2.4, The 47th Annual meeting of American Physical Society-Division of Plasma Physics (APS-DPP), Denver, Colorado, Oct 24-28 (2005). 19. L. K. Ang, Space-charge limiting current in quantum regime, X-windows newsletters, Applied Physics Division, Los Alamos National Laboratory (2004) funded by LANL 20. L. K. Ang, Intense electron beam generation and interaction in nm regime", A*STAR SERC TSRP Workshops (Nano-manufacturing), Singapore, August 28-29 (2003).