Sudeep Bhattacharjee

Professor, Department of Physics

(Holding Highest Academic Grade (HAG))

Indian Institute of Technology Kanpur, India

Tel : +91 512 2597602 (office), +91 512 2596113 (laboratory)Fax: +91 512 2590914, Email : sudeepb@iitk.ac.in

Current Research:

I work in Experimental Plasma Physics, Focused Ion Beams, Matter Wave Generation from Ion Beams and Control, Ion Matter Interactions, and Physics of Nanoscale and Quantum Systems

Recent Research Topics:

Physics of plasmas confined in a dipole magnetic field - diffusion, particle and energy balance, electron energy distribution, plasma fluctuations, Electrical conductivity and current density profiles in a dipole plasma, Thermodynamics of dipole plasmas; Plasmas created at cryogenic temperatures (Cryo-plasmas) - collisional cooling in a cryo-plasma, disorder induced heating in strongly coupled plasmas; Matter waves from ion beams - Diffraction of cryo-plasma (ion) beams, Talbot arrangement for de Broglie waves and detection of small electric and magnetic fields; Focused ion beams - Nonlinear demagnification in plasma-based charged particle optics, capillary guiding beyond the self focusing limit, creation of quantum beams; Atmospheric pressure microplasmas - fluctuations and strong field effects, collisionally broadened ion cyclotron resonance; Ion matter interactions and atomically heterogeneous systems - applications of low energy ion beams for modifying electrical, optical and surface properties of matter; Nanoscale and quantum systems - field emission, electric field penetration through nano pores, ac voltage driven nano-gaps; More details in laboratory page.

ORCID ID: https://orcid.org/0000-0002-5369-9818

Plenary Talk at 8th Asia Pacific Conference in Plasma Physics, 2 - 9, November, 2024, Melaka, Malaysia

Thermodynamics of magnetized plasma through experimental observations : superadiabaticity, entropy and energy content

Ph.D and Postdoctoral positions:

We have a vibrant research group consisting of several Ph.D and master students working on the aforementioned forefront research topics, and are always on the lookout for bright and energetic students and postdocs to join our research group for undertaking either doctoral or postdoctoral work. If you would like to join our laboratory please contact Prof. Sudeep Bhattacharjee at: sudeepb@iitk.ac.in

Book

Sudeep Bhattacharjee, Compact plasma and focused ion beams , CRC Press (Taylor & Francis Group), December 2013.

Perspective Article

A Perspective Article on plasmas that I recently wrote for the International Low Temperature Plasma Community (ILTPC) Newsletter, currently hosted by the Michigan Institute for Plasma Science and Engineering (MIPSE).

Plasmas, An Evolving Multidisciplinary Field – Yesterday, Today and Tomorrow

Research Patents

S. Bhattacharjee and J. V. Mathew, "Multielement focused ion beams (MEFIB) from intense, collimated microwave plasmas: concepts to genesis of a novel device", US patent number 9576767 issued on 21 Feb 2017.
S. Bhattacharjee and S. Paul, "Measurement of submicron focused charged particle beams using a current flux grating : spider probe", US patent number 9733366, issued on 15 August 2017.
Sanghamitro Chatterjee, Sudeep Bhattacharjee, Sanjeev K. Maurya, Vyas Srinivasan, Krishnacharya Khare and Sameer Khandekar, "A method for transforming the wettability of a surface", Indian patent number 360984, issued on 12 March 2021.
Kavita Rathore, Prabhat Munshi and Sudeep Bhattacharjee, "An improved emission tomographic measurement system device and a method thereof", Indian patent number 386742, issued on 18 January 2022.
Anuj Ram Baitha and Sudeep Bhattacharjee, "A Compact Table Top Dipole Plasma System for Plasma Processing", Indian patent number 538119, issued on 15 May 2024.
Sudeep Bhattacharjee, Sushanta Barman, and Sanjeev Kumar Maurya, "Plasma based focused ion beam system for reducing ion beam size using plasma sheath nonlinearity", Indian patent number 548562, issued on 23 August 2024.

Professional Activities

Co-chair, Scientific Program Committee, 9th Asia-Pacific Conference on Plasma Physics, September 21 - 26, 2025, Fukuoka, Japan
Chairman, Selection Committee, Plasma Innovation Prize of AAPPS-DPP (Association of Asia Pacific Physical Societies- Division of Plasma Physics), 2024
Member, Scientific Program Committee, National Symposium on Plasma Science and Technology (PLASMA 2023, 2024)
Member, Selection Committee, Plasma Innovation Prize of AAPPS-DPP, 2019, 2020, 2022, 2023
Member, Board of Directors, Association of Asia-Pacific Physical Societies, Division of Plasma Physics AAPPS-DPP (2022 - )
Chairman, Basic Plasma Physics Program Committee, 7th Asia-Pacific Conference on Plasma Physics, November 12 - 17, 2023, Nagoya, Japan
Chairman, Basic Plasma Physics Program Committee, 6th Asia-Pacific Conference on Plasma Physics, October 9 -14, 2022
Member, International Honorary Advisory Committee, Association of Asia-Pacific Physical Societies, Division of Plasma Physics AAPPS-DPP (2021 - present)
Member, Selection Committee, Subrahmanyan Chandrasekhar Prize of Plasma Physics of AAPPS-DPP 2020
Member Editorial Board, Reviews of Modern Plasma Physics SPRINGER (2020 - present)
Member Editorial Board, Plasma Research Express (Institute of Physics (IOP)) PREX (2018 - 2022)
Associate Editor, frontiers in PHYSICS, (Plasma Physics) (2014 - 2022)
Member, International Organizing Committee (IOC), 4th Asia Pacific Conference on Plasma Physics October 26 - 31, 2020
Member, Scientific Program Committee (SPC), 4th Asia Pacific Conference on Plasma Physics October 26 - 31, 2020
Member, International Scientific Committee (ISC), International Conference on Phenomena in Ionized Gases (ICPIG), 2013 - 2017
Member, Program Committee, 1st Asia Pacific Conference on Plasma Physics , September 18 - 23, 2017, ChengDu, China
Member, National Advisory Committee, 33rd National Symposium on Plasma Science and Technology, Delhi University, December 4 - 7, 2018
Member of the Scientific Advisory Committee, National Symposium on Plasma Science and Technology, (PLASMA 2016, 2017, 2019, 2021, 2022)

Recent Journal Publications

Ayesha Nanda and Sudeep Bhattacharjee, Observation of astrophysically relevant superadiabaticity in a plasma confined by a dipole magnet, Physics of Plasmas (LETTER) 32, 030703 (2025).
Sushanta Barman and Sudeep Bhattacharjee, Electrically controlled focusing of de Broglie matter waves by Fresnel zone plate, Physica Scripta 100, 045404 (2025).
Joy Mukherjee, Dipak Bhowmik, Sudip Bhowmick, Prasanta Karmakar, Sudeep Bhattacharjee, Low energy ion-beam mediated tailoring of structural, optical, and electrical properties of ITO films, Surfaces and Interfaces 59, 105973 (2025).
Jayashree Majumdar and Sudeep Bhattacharjee, Field emission study on atomically heterogeneous micro-metallic emitters produced by ion beam from inert gas plasmas, Journal of Physics D : Applied Physics 58, 135205 (2025).
Swati Swagatika Mishra, Sudeep Bhattacharjee, and Pascal Brault, Evaluating ion dynamics through Coulomb and Yukawa interaction potentials in one-component strongly coupled plasmas, Physical Review E 111, 015208 (2025).
Sargam Hunjan and Sudeep Bhattacharjee, Characteristics of fluctuations in the equatorial and polar directions of a compact dipole plasma driven at steady state, Physics of Plasmas 31, 092106 (2024).
Sushanta Barman and Sudeep Bhattacharjee, Electric field driven focusing and transport of plasma ion beams by micro-glass capillaries beyond the self-focusing limit, Journal of Physics D : Applied Physics 57, 405206 (2024).
Deepika Behmani, Michael Keidar, and Sudeep Bhattacharjee, Frequency-locked measurement of floating potential fluctuations in cold micro-plasma jets : interactive surface feedback effects on reactive species generation, Physics of Plasmas 31, 033505 (2024).
Swati Swagatika Mishra and Sudeep Bhattacharjee, Collisional cooling in confined gases at cryogenic temperatures: time dependent near-wall accumulation and gas dynamics, International Journal of Heat and Mass Transfer 220, 125008 (2024).

Research Overview

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