Dr. Reetesh Kumar Gangwar

Associate Professor & Head

Areas of Interest

Plasma Physics (Experiment and Theory), Atomic Molecular Physics (Theory)

• Ion trapping and cooling
• Quantum-mechanical calculation of cross sections relevant to plasma modeling
• Population kinetic modeling of low temperature plasmas
• Development of nonthermal plasma systems
• Spectroscopic characterization of low temperature plasmas
• Plasma-mediated processing for the application in environmental, biomedical, food, Agriculture, and material synthesis

Education and Experience

• Ph.D, Department of Physics, IIT Roorkee, INDIA (Aug, 2012)
  Thesis Title: Study of Collisional Processes in Atomic Systems
• Post Doc, Plasma processing laboratory, Département de Physique, Université de Montréal, Montréal, Canada. (11/2012-03/2016)
• Post Doc, Molecular Phy. Lab, Dept. of Physics, Weizmann Institute of Science, Israel (03/2016-03/2018)
• Assistant Professor, Department of Physics, VNIT Nagpur, (03/2018-11/2018)

Sponsored Research & Consultancy Projects

• DST-SERB (Core Research Grant), ongoing, Title "A novel scheme to cool the translational as well as internal degrees of freedom of any molecular ion beam". PI: Dr. Reetesh Kumar Gangwar.
• DST-SERB-(Special COVID Call), completed, Title "Development of a Portable Optical Cavity Sterilization Unit". PI: Dr. Reetesh Kumar Gangwar
• Consultancy Project, Amara Raja Batteries Ltd., “Development of N-95 equivalent respirator”. PI: Dr. D. V. Kiran, Dr. S. M. Maliyekkal, Dr. R. K. Gangwar
• Seed fund from the Center for Atomic, Molecular and Optical Science & Technology, IIT-IISER Tirupati, joint initiative for “Setting up of Plasma processing Laboratory.” PI: Dr. R. K. Gangwar.

Current Research Student

• Ph.D thesis joint-supervisor, Mr. Shaik Mahamad Allabakshi, SRF, since 02-Jan-2019
• Ph.D thesis supervisor, Mr. P S Naga Sai Raghavendra Srikar, SRF, since 17-June-2019
• Ph.D thesis supervisor, Ms. Indhu Suresh, CSIR-JRF, since 24-Aug-2020
• Ph.D thesis joint-supervisor, Mr. Tadavarthi Pushparaj Gandhi, PMRF, since JAN, 2022
• Ph.D thesis supervisor, Mr. Thota Satish Babu, since July, 2022
• M.Tech/MSc. Student: Syed Arwa Altaf Balkhi, Debabrat Rout, Saroj Meena

Latest Publications (Last 03 years)

• Indhu Suresh, PSNSR SRIKAR, Priti, Rajesh Srivastava and Reetesh Kumar Gangwar, Relativistic calculation of electron impact excitation of tin: Cross sections of importance in plasma modeling, Plasma Sources Sci. Technol., Accepted, (2023), DOI: 10.1088/1361-6595/acdf7d.
• Sai Srikar, Tinku Kumar, Degala Venkata Kiran and Reetesh Kumar Gangwar, Non‐invasive optical characterization and estimation of Zn porosity in gas tungsten arc welding of Fe-Al joints using CR model and OES measurements, Plasma Sci. Technol., Accepted, (2023), DOI 10.1088/2058-6272/acddb7.
• Shaik Mahamad Allabakshi, P.S.N.S.R. Srikar, Suman Gomosta, Reetesh Kumar Gangwar, Shihabudheen M. Maliyekkal, UV-C photon integrated surface dielectric barrier discharge hybrid reactor: A novel and energy-efficient route for rapid mineralisation of aqueous azo dyes, Journal of Hazardous Materials, 446, 130639 (2023), DOI: 10.1016/j.jhazmat.2022.130639.
• Indhu Suresh, P S N S R Srikar, Priti, R Srivastava,and R K Gangwar, Electron impact excitation cross section calculations of the fine structure transitions of Mo and their applications in the diagnostics of the laser induced Mo plasma Plasma Sources Sci. Technol., 31, 095016 (2022).
• S S Baghel, N Sahin, A Agrawal, R K Gangwar, M Tanıslı, and R Srivastava Diagnostic study of capacitively coupled neon rf plasma with traces of O2/H2 at intermediate pressure J. Phys. D: Appl. Phys. 55 295201 (2022).
• Shaik Mahamad Allabakshi, P.S.N.S.R. Srikar, Reetesh Kumar Gangwar, Shihabudheen M. Maliyekkal Feasibility of surface dielectric barrier discharge in wastewater treatment: Spectroscopic modeling, diagnostic, and dye mineralization Separation and Purification Technology 296 121344 (2022).
• S S Baghel, R. K. Gangwar and R Srivastava, Diagnostics of Ne–Ar mixture plasma using a fine-structure resolved collisional radiative model, Contributions to Plasma Physics, 62 e202100226, (2022).
• Indhu Suresh, P S N S R Srikar, Priti, R Srivastava, and R K Gangwar, Electron impact excitation cross section calculations of the fine structure transitions of Mo and their applications in the diagnostics of the laser induced Mo plasma, Plasma Sources Sci. Technol. 31 (2022) 095016. DOI: https://doi.org/10.1088/1361-6595/ac9081
• Shaik Mahamad Allabakshi, P.S.N.S.R. Srikar, R. K. Gangwar, and S. M. Maliyekkal, Feasibility of surface dielectric barrier discharge in wastewater treatment: Spectroscopic modeling, diagnostic, and dye mineralization, Separation and Purification Technology 296 (2022) 121344. DOI: https://doi.org/10.1016/j.seppur.2022.121344
• S S Baghel, N ¸ Sahin, A Agrawal, R. K. Gangwar, M Tanı¸sl, and R Srivastava, Diagnostic study of capacitively coupled neon rf plasma with traces of O2/H2 at intermediate pressure, Journal of Physics D: Applied Physics, 55, 295201 (2022), DOI: https://doi.org/10.1088/1361-6463/ac6993
• S S Baghel, R. K. Gangwar and R Srivastava, Diagnostics of Ne–Ar mixture plasma using a fine-structure resolved collisional radiative model, Accepted in Contributions to Plasma Physics,62, e202100226 (2022), DOI: https://doi.org/10.1002/ctpp.202100226
• Ananthanarasimhan J, R. K. Gangwar, P. Leelesh, P. S. N. S. R. Srikar, A. M. Shivapuji, and L. Rao, Estimation of electron density and temperature in an argon rotating gliding arc using optical and electrical measurements, Journal of Applied Physics 129, 223301 (2021), DOI: https://doi.org/10.1063/5.0044014
• S S Baghel, S Gupta, R. K. Gangwar and R Srivastava, Diagnostics of laser-produced Mg plasma through a detailed collisional radiative model with reliable electron impact fine structure excitation cross-sections and self-absorption intensity correction, Plasma Sources Sci. Technol. 30 055010 (2021), DOI: https://doi.org/10.1088/1361-6595/abe1d3
• N. Shukla, R. K. Gangwar, R. Srivastava, Diagnostic of Ar-CO2 mixture plasma using a fine-structure resolved collisional radiative model Spectrochimica Acta Part B: Atomic Spectroscopy, 175 106019 (2021), DOI: https://doi.org/10.1016/j.sab.2020.106019

Book Chapters

• Afrah Harafana, R. K. Gangwar, S. M. Maliyekkal (2022), Chapter 8-Abatement of pesticides in drinking water by nanoscale carbon materials, Separation Science and Technology, Volume 15, 2022, Pages 139-16, DOI: https://doi.org/10.1016/B978-0-323-90763-7.00001-9
• S.M. Allabakshi, P.S.N.S.R. Srikar, R. K. Gangwar, S. M. Maliyekkal (2022), Application of Plasma-Assisted Advanced Oxidation Processes for Removal of Emerging Contaminants in Water. In: P. Singh S., Agarwal A.K., Gupta T., Maliyekkal S.M. (eds) New Trends in Emerging Environmental Contaminants. Energy, Environment, and Sustainability. Springer, Singapore. DOI: https://doi.org/10.1007/978-981-16-8367-115