CV
Prasoon Diwakar
West Lafayette, IN 47907. Ph (O): (765) 494 6984 Ph (Cell): (352) 870 3473 Email: pdiwakar@purdue.edu pdf version of CV
Education
Ph.D in Mechanical Engineering Aug 2009
Advisor: Prof. D.W. Hahn, Department of Mechanical and Aerospace Engineering
Thesis title: “Laser-induced plasmas as an analytical source for quantitative analysis of gaseous and aerosol systems: Fundamentals of plasma-particle interactions”
University of Florida, Gainesville, FL
M.S. in Mechanical Engineering Aug 2006
University of Florida, Gainesville, FL
B.Tech in Mechanical Engineering May 2003
Indian Institute of Technology, Kanpur, India
Professional Experience
Post-Doctoral Associate 2012 – present
Center for Materials Under eXtreme Environment (CMUXE), Purdue University (link)
Research Topic: Femotsecond LIBS and Laser ablation-ICP-MS; High Energy Density Plasmas
National Research Council Post-Doctoral Associate 2009 – 2012
National Institute for Occupational Safety and Health, CDC Cincinnati
Research Topic: Development of novel direct reading instruments for real-time measurement of fine and ultra-fine aerosols using plasma spectroscopy techniques (LIBS/SIBS/MIPS).
Graduate Research Assistant 2004 – 2009
Department of Mechanical and Aerospace Engineering, University of Florida
Research Topic: Study of plasma-particle interactions in Laser-induced plasmas; Study of soot formation using Laser-induced incandescence.
Visiting Scientist March 2009
Institute of Analytical Sciences, Dortmund, Germany
Research Topic: Investigation of single particle atomization in ICP.
Research Associate Fall 2003
Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, India
Research Topic: Design and simulation of Heat Exchangers using Artificial Neural Networks.
Student Research Assistant Summer 2002
CNR-TEMPE, Laboratorio di Combustione e Diagnostiche Laser, Milano, Italy
Research Topic: Two dimensional imaging of soot volume fraction in flames using two color emission technique and extinction methods.
Summer Internship Summer 2001
Research and Development, TVS-Suzuki Motors, Hosur, India
Research Topic: Optimization of suspension parameters of two-wheelers using stochastic linear control theory.
Refereed Publications
- P.K. Diwakar, P.S. Kulkarni, 2012. Measurement of Elemental Concentration of Aerosols Using Spark Emission Spectroscopy. Submitted
- P.K. Diwakar, P.S. Kulkarni, M.E. Birch, 2012. New approach for near-real-time measurement of elemental composition of aerosols using laser induced breakdown spectroscopy. Aerosol Science and Technology, 46:316-332. web link
- P.K. Diwakar, S. Groh, K. Niemax, D.W. Hahn, 2010. Study of analyte dissociation and diffusion in laser-induced plasmas: Implications for laser-induced breakdown spectroscopy. Journal of Analytical Atomic Spectrometry, 25:1921-1930. pdf
- S. Groh, P.K. Diwakar, C.C. Garcia, A. Murtazin, K. Niemax, D.W. Hahn, 2010. 100% efficient sub-nanoliter sample introduction in laser-induced breakdown spectroscopy and inductively coupled plasma spectrometry: Implications for ultralow sample volumes. Analytical Chemistry, 82: 2568-2573. pdf
- P.K. Diwakar, D.W. Hahn, 2008. Study of early laser-induced plasma dynamics: transient electron density gradients via Thomson scattering and the implications on LIBS measurements. Spectrochimica Acta B, 63:1038-1046. pdf
- P.K. Diwakar, P. B. Jackson, D. W. Hahn, 2007. Investigation of multi-component aerosol particles and the effect on quantitative laser-induced breakdown spectroscopy: consideration of localized matrix effects. Spectrochimica Acta B, 62, 1466-1474. pdf
- C. A. Henry, P.K. Diwakar, D.W. Hahn, 2007. Investigation of helium addition for laser-induced plasma spectroscopy of pure gas phase systems: analyte interactions and signal enhancement. Spectrochimica Acta B, 62, 1390-1398. pdf
- B.C. Windom P.K. Diwakar, D.W. Hahn, 2006. Dual-pulse LIBS for analysis of gaseous and aerosol systems: plasma-analyte interactions, Spectrochimica Acta B, 61, 788-796. pdf
- G.D. Yoder P.K. Diwakar, D.W. Hahn, 2005. Assessment of soot particle vaporization effects during laser-induced incandescence using time-resolved light scattering. Applied Optics, 44, 4211-4219. pdf
Manuscript in Preparation
- P.K. Diwakar, P.S. Kulkarni. Matrix effects due to easily ionizable elements on analyte response in LIBS plasma: implications to portable and low-energy LIBS plasma instruments.
- P.K. Diwakar, P.B. Jackson, D.W.Hahn. Investigation of breakdown process in different gas media by temporal spectroscopic imaging of laser-induced plasma.
Patent
- CDC employee invention report titled “Method for focused collection of aerosol particles for chemical analysis by spectroscopic techniques” filed dated Nov 10, 2010. Patent application filed.
Poster Presentations/Conference Proceedings
- FACSS 2011, Oct 2011, Reno, 2011. “Role of Analyte Diffusion in Laser-Induced Plasmas. “
- 30th Annual AAAR Conference, Orlando, Oct 2011. “Near Real-time Elemental Analysis of Aerosols Using Spark-induced Breakdown Spectroscopy.”
- 3rd North American Symposium on LIBS, Clearwater, Jul 2011.”Corona-Assisted Microwave Plasma Spectroscopy (CAMPS) for Aerosol Analysis.”
- 29th American Association for Aerosol Research Annual Conference, Portland, Oregon, October 25-29, 2010 “Semi-Continuous Measurement of Elemental Composition of Aerosol Particles Using Laser Induced Breakdown Spectroscopy”
- 29th American Association for Aerosol Research Annual Conference, Portland, Oregon, October 25-29, 2010. “Matrix Effects in Laser-Induced Breakdown Spectroscopy”
- 6th International Conference on Laser-Induced Breakdown Spectroscopy 2010 (LIBS 2010), Memphis,USA, Sep 13-17, 2010.“Novel Approach for Analysis of Fine and Ultra-fine Aerosol Particles Using Laser Induced Breakdown Spectroscopy”
- 2nd North American Symposium on LIBS, New Orleans, USA. Jul 2009 “Investigation of Plasma-Particle Interactions in LIBS by Introduction of Single Droplet (Picolitre Volume) in the Plasma”
- 2nd North American Symposium on LIBS, New Orleans, USA. Jul 2009 “Elemental Distribution in Fish Scales Using LIBS and LA-ICP-MS Methods”
- 2nd North American Symposium on LIBS, New Orleans, USA. Jul 2009 “LIBS and LA-ICP-MS Complementary Study of Uroliths”
- European Winter Conference on Plasma Spectrochemitry, Graz, Austria. Feb 2009 “LIBS, LA-ICPMS and synchrotron hard X-ray micro-radiography and micro-tomography complementary study of elemental distributions in biominerals”
- 5th International Conference on Laser-Induced Breakdown Spectroscopy, Berlin, Germany. Sept 2008 “Temporal investigation of aerosol particles and early plasma dynamics on single isolated analyte droplets”
- Conference on Lasers and Electro-Optics (CLEO), San Jose,CA. May 2008 “Laser-induced breakdown spectroscopy (LIBS) for aerosol analysis”
- 4th International Conference on Laser-Induced Breakdown Spectroscopy, Montreal, Canada. Sept 2006 “Investigation of multi-component aerosol particles and the effect on quantitative analysis: consideration of thermal matrix e®ects”
- 29th International Symposium of Combustion, Sapporo, Japan. Jul 2002 “Quantitative two-dimensional imaging of soot volume fraction in flames”
Awards
- Charles C Shepard Science Award Nominee for Outstanding Scientific Publication (2012, CDC)
- Research Associateship Award by National Academy of Sciences for postdoc at NIOSH Cincinnati, 2009.
- Prize for student poster presentation at 2nd NASLIBS conference , New Orleans, USA, Jul 2009.
- Nominated for Elsevier/Spectrochimica Acta Atomic Spectroscopy Award, 2008.
- Nominated for Elsevier/Spectrochimica Acta Atomic Spectroscopy Award, 2007.
- Second prize for poster presentation at 9th Environmental Engineering Society Poster Symposia, University of Florida, April 2007.
- Elsevier prize for best student poster presentation at 4th International Conference on LIBS, Montreal, Canada, Sep 2006.
- IIT-Kanpur certificate of merit for academic excellence in Mechanical Engineering, Aug 1998.
Research Interests
Specialization includes the areas of laser-based diagnostic methods, plasma spectroscopy, aerosol measurement and instrumentation and thermal sciences.
Specific areas of research interest include development of LIBS, fundamentals of plasma-particle interactions, aerosol systems, aerosol chemical composition measurement, real-time instrumentation, study and diagnostics of environmental pollutants and combustion diagnostics.
Experience in experimental techniques include Laser-Induced Breakdown Spectroscopy (LIBS),Spark Spectroscopy, Microwave-Induced Plasma Spectroscopy, Rayleigh Scattering, Thomson Scattering, Laser Induced Incandescence (LII), Laser Induced Fluorescence (LIF), Raman Spectroscopy, Single Particle analysis, Plasma-Particle Imaging, Inductively Coupled Plasma.
Professional and Service Organizations
Member of Optical Society of America, American Chemical Society, Society for Applied Spectroscopy, American Association for Aerosol Research, Combustion Institute, North American Society for Laser-Induced Breakdown Spectroscopy
Secretary-Elect and Council member of North American Society for Laser Induced Breakdwon Spectroscopy (NASLIBS)
Member of Esther Hoffman Beller Award Committee 2012-2013
Reveiwer of Journal of Analytical Atomic Spectrometry, Physical Chemistry Chemical Physics, Analyst, Optics Letters, Optics Express, Applied Spectroscopy, Analytical Chemistry, NIOSH manuscripts.
President of Florida chapter of charity organization Asha for Education, 2006-2008.