নৰ্থ লখিমপুৰ বিশ্ববিদ্যালয় North Lakhimpur University A Public State University established by upgrading North Lakhimpur College
under Assam Act No. LVIII of 2023 & Recognized by the UGC under section 2(f) of the UGC Act, 1956
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Dr Dipankar Chetia

Assistant Professor | Physics
MSc (Tezpur University), PhD (Gauhati University)
dc@nlu.ac.in

Dr. Dipankar Chetia has been an Assistant Professor in the Department of Physics at North Lakhimpur University, Assam, since March 2020. He is a recognised Ph.D. supervisor and currently chairs the Departmental Research Committee (DRC) of the Department of Physics. His research interests lie in FOS, and optoelectronics & photonic devices. 

He received his M.Sc. from Tezpur University and his Ph.D. from Gauhati University, where he carried out his doctoral research as a UGC-JRF/SRF fellow (2013-18). Before joining North Lakhimpur University, he taught in the Department of Physics at Rajiv Gandhi University (2019) and in the Department of Electronics & Communication Technology at Gauhati University (2014-17).

His research work has appeared in reputed journals including IEEE Sensors Journal, IEEE Transactions on Instrumentation and Measurement, and IEEE Sensors Letters, and he has presented at several international and national conferences. He has co-authored textbooks for undergraduate students and serves as a reviewer for IEEE Sensors Journal, IEEE Transactions on Instrumentation and Measurement and Scientific Reports. He has also edited the proceedings of SPARK 2023 - IOP Journal of Physics: Conference Series and SPARK 2025 - Springer Nature Interactions.

For a complete list of publications, visit Google Scholar profile.

Institutional Responsibilities: Dr. Chetia has served as the Single Point of Contact (SPOC) for the NPTEL-SWAYAM Local Chapter since 2020 and as the Institute Nodal Officer for NIRF and AISHE since the 2021–22 session. He is also the Organizing Secretary of the SPARK (Symposium on Physics: Advances in Research and Knowledge) conference series, having led both the inaugural 2023 edition and the 2025 edition.

Research Interests

Free-Space Optical (FSO) Communication, Quantum Key Distribution (QKD), Opto-electronic and Photonic Sensors & Devices, Material Science

Specialized Courses

Opto-electronics, Photonics, Electronic Instrumentation, Material Science, Statistical Mechanics, Python.

Publications

 

Research articles, books and edited books/proceedings.

International Journal Publications

Groundwater Uranium Contamination in Kamrup Metro District, Assam: Correlation with Nitrate and Phosphate Levels and Health Risk Assessment
Saikia R., Chetia D. and Bhattacharyya K.G.
Journal of Physics: Conference Series, Vol. 2957, 012009, 2025. IOP Publishing
Estimation of Uranium in Groundwater and Assessment of Age-Dependent Radiation Dose in Nalbari District of Assam, India
Saikia R., Chetia D. and Bhattacharyya K.G.
SN Applied Sciences, Vol. 3, Issue 1, Article 17, 2021. Springer
Low-Cost Refractive Index Sensor with Optical Fibers Attached to a U-Shaped Glass Tube
Chetia D., Gogoi J.M., Singh H.K. and Bezboruah T.
IEEE Sensors Letters, Vol. 2, Issue 3, Article No. 3501504. ISSN: 2475-1472, 2018. IEEE
A Low-Cost Refractometer with Misaligned Optical Fibers
Chetia D., Basumatary T., Singh H.K. and Bezboruah T.
Advances in Communication, Devices and Networking, Lecture Notes in Electrical Engineering, Vol. 462, Ch. 46, pp. 419–428. ISSN: 1876-1119, ISBN: 978-981-10-7901-6, 2018. Springer
Fiber Optic Sensor for Detection of Chlorine Level in Water
Yesmin S., Chetia D., Basumatary T. and Singh H.K.
Advances in Communication, Devices and Networking, Lecture Notes in Electrical Engineering, Vol. 462, Ch. 47, pp. 429–437. ISSN: 1876-1119, ISBN: 978-981-10-7901-6, 2018. Springer
Low-Cost Refractometer with Longitudinally Displaced Optical Fibers
Chetia D., Basumatary T., Singh H.K. and Bezboruah T.
IEEE Sensors Journal, Vol. 16, Issue 15, pp. 5950–5957. ISSN: 1530-437X, 2016. IEEE
Fiber Optic Viscometer Based on Sliding of Liquid Drop under Gravity on Inclined Flow Channel
Basumatary T., Chetia D., Singh H.K. and Bezboruah T.
IEEE Transactions on Instrumentation and Measurement, Vol. 65, Issue 4, pp. 930–938. ISSN: 0018-9456, 2016. IEEE
Fiber Optic Sensor for Liquid Volume Measurement
Singh H.K., Basumatary T., Chetia D. and Bezboruah T.
IEEE Sensors Journal, Vol. 14, Issue 4, pp. 935–936. ISSN: 1530-437X, 2014. IEEE

Books and Chapters

Book · 2024
Condensed Matter Physics for Undergraduate Students
Chetia D. and Robidas D.
January 2024. 203 pages. ISBN: 978-93-5860-182-4
Book Chapter · 2017
Surface Plasmon Resonance Based Fiber Optic Sensors and Fiber Bragg Grating Sensors: A Qualitative Analysis
Chetia D.
In Recent Trends in Material Science and Optoelectronics, 1st ed., pp. 53–72, June 2017. ISBN: 978-81-92955-85-8

Editorial Work

Springer Nature · 2026
Editor, SPARK 2025 Proceedings
A special collection in Interactions (formerly Hyperfine Interactions) presenting peer-reviewed papers from the Symposium on Physics: Advances in Research and Knowledge 2025, held at North Lakhimpur University, covering areas from particle physics and cosmology to advanced materials, photonics and sensing technologies.
IOP Publishing · 2025
Editor, SPARK 2023 Proceedings
Journal of Physics: Conference Series, Vol. 2957. This volume contains the proceedings of the inaugural edition of the SPARK conference series.

Symposiums, Conferences & Workshops

 

Conferences organized, papers presented at international and national seminars, and workshops attended.

International Level Seminars

Fiber Optic Sensor Based Viscometer to Measure Viscosity of Newtonian Fluids
Chetia D., Basumatary T., Singh H.K. and Bezboruah T.
IEEE International Conference on Innovations in Electronics, Signal Processing and Communication
19–20 October 2017. Organized by NIT Meghalaya and IEEE. IEEE · 2017
A Low-Cost Refractometer with Misaligned Optical Fibers
Chetia D., Basumatary T., Singh H.K. and Bezboruah T.
Springer International Conference on Communication Devices and Networking (ICCDN 2017)
3–4 June 2017. Organized by the Department of Electronics and Communication Engineering, Sikkim Manipal Institute of Technology, with Springer; co-sponsored by IEEE. ICCDN · 2017
Ultra-Low-Cost Refractometer with Longitudinally Attached Optical Fibers
Chetia D., Basumatary T., Singh H.K. and Bezboruah T.
International Conference on Electronics Devices, Circuits, Applied Electronics and Communication Technology (EDCAECT 2015)
8–10 October 2015. Organized by the Department of ECT, Gauhati University. EDCAECT · 2015
Designing of a Low-Cost Optical Beam Splitter for Optical Fibers
Chetia D., Basumatary T., Singh H.K. and Bezboruah T.
International Conference on Green Energy and Smart Materials through Science, Technology and Management (GESM-2014)
21–23 January 2014. Organized by Gauhati University and University of South Africa at Gauhati University. GESM · 2014

National Level Seminars

Toward Affordable Multispectral Methods for Optical Glucose Detection Using Sugar Solutions and Blood-Like Tissue Phantoms
Chetia D., Borah N.R.
Symposium on Physics: Advances in Research and Knowledge (SPARK 2025)
31 October – 1 November 2025. Organized by the Department of Physics, North Lakhimpur University. SPARK · 2025
Spatial Distribution of Various Physico-Chemical Parameters and their Correlation with Groundwater Uranium in Kamrup Metro District of Assam, India
Current Trends and Future Directions in Chemical Sciences 2025
8 March 2025. Organized by the Department of Chemistry, Dhemaji College. Chemical Sciences · 2025
Assessment of Uranium Levels and Water Quality Parameters in Assam Groundwater: Correlation with Nitrate and Phosphate, and Health Risk Evaluation
Saikia R., Chetia D. and Bhattacharyya K.G.
Symposium on Physics: Advances in Research and Knowledge (SPARK 2023)
14 October 2023. Organized by the Department of Physics, North Lakhimpur University. SPARK · 2023
A New Experimental Setup to Determine the Bending Loss of Multimode Optical Fiber
Chetia D., Basumatary T., Singh H.K. and Bezboruah T.
National Symposium on Instrumentation (NSI-38)
24–26 October 2013. Organized by the Instrumentation Society of India at BVB College of Engineering and Technology, Hubli, Karnataka. NSI-38 · 2013

Workshop Attended

The Winter School on Remote Sensing of the Earth's Atmosphere and Space Weather (ReMatSpace-2013)
4–22 March 2013. Organized by the Department of Radio Physics and Electronics, University of Calcutta. Workshop · 2013

Symposia Organized

As Organizing Secretary, Dr. Chetia has led both editions of SPARK (Symposium on Physics: Advances in Research and Knowledge), the biennial national conference of the Department of Physics, North Lakhimpur University.

SPARK 2025Organizing Secretary
Symposium on Physics: Advances in Research and Knowledge 2025
31 October – 1 November 2025, North Lakhimpur University

The second edition of the biennial national conference brought together participants from reputed academic and research institutions across India.

It featured keynote lectures, parallel technical sessions, poster presentations and interdisciplinary discussions spanning High Energy Physics, Gravitation, Electronics, Photonics, Nanoscience, Plasma Physics, Astronomy and Applied Physics. The peer-reviewed proceedings are published in Springer Nature's Interactions.

SPARK 2023Organizing Secretary
Symposium on Physics: Advances in Research and Knowledge 2023
14 October 2023, North Lakhimpur University

The inaugural edition launched the SPARK conference series and hosted more than 100 participants from institutions across India, covering both theoretical and experimental physics.

The programme included keynote lectures, plenary talks, parallel technical sessions and poster presentations. The proceedings are published in IOP Publishing's Journal of Physics: Conference Series.

Research

 

Research areas, research group and student supervision.

Research Areas

Optoelectronic and Photonic Devices
Low-Cost Optical InstrumentationFree-Space Optical (FSO) CommunicationQuantum Key Distribution (QKD)Fiber-Optic SensorsPhysical and Environmental Parameter DetectionOptical ViscometrySensors for Biochemical Parameter Detection

Research Group

Opto-electronics & Photonics Lab
Department of Physics, North Lakhimpur University
Ph.D. Supervision
Recognised Ph.D. Supervisor, North Lakhimpur University
Research Committee
Chairman, Departmental Research Committee (DRC), Department of Physics

Ongoing Ph.D. Research Scholar

RB
Mr. Raktim Borah
Ph.D. Research Scholar
rs.raktim[at]nlu.ac.in

M.Sc. Project Students (Completed)

NB
Mr. Nikunja Ranjan Borah
M.Sc. Project, 2026
PT
Mr. Prabhat Taye
M.Sc. Project, 2024

Professional Responsibilities

 

Institutional roles held at North Lakhimpur University, with contact details for related queries.

Current Responsibilities

SPOC, NPTEL-SWAYAM Local Chapter, North Lakhimpur University Since 2020

Dr. Chetia has served as the Single Point of Contact (SPOC) for the NPTEL-SWAYAM Local Chapter of North Lakhimpur University since 2020, coordinating NPTEL, SWAYAM and SWAYAM-Plus online courses for students and faculty.

Queries on NPTEL-SWAYAM or SWAYAM-Plus courses: swayam[at]nlu[dot]ac[dot]in
Organizing Secretary, SPARK 2023 & 2025

He serves as the Organizing Secretary of the Symposium on Physics: Advances in Research and Knowledge (SPARK), the national conference series of the Department of Physics, North Lakhimpur University. In this role he has led both the inaugural 2023 edition and the 2025 edition.

For details about SPARK: spark[at]nlc[dot]ac[dot]in
Visit sparkphysics.in
Institute Nodal Officer, NIRF and AISHE Since 2021–22

Since the 2021–22 session, he has served as the University Nodal Officer for the National Institutional Ranking Framework (NIRF) and the All India Survey of Higher Education (AISHE), overseeing the university's data submissions for both.

Queries on NIRF and AISHE: dc[at]nlc[dot]ac[dot]in

Past Responsibilities

Teacher In-charge, Science Forum 2022–24

Served as the Teacher In-charge of the Science Forum at North Lakhimpur College (Autonomous) and of the college science festival, Scionics, for the 2022–24 session.

Experience

 

Teaching positions and research fellowships.

Professional Experience

 
December 2023 – Present
Assistant ProfessorCurrent
Department of Physics, North Lakhimpur University, Assam
 
March 2020 – December 2023
Assistant Professor
Department of Physics, North Lakhimpur College (Autonomous), Assam
 
January 2019 – December 2019
Guest Assistant Professor
Department of Physics, Rajiv Gandhi University, Arunachal Pradesh
 
August 2014 – July 2017
Teaching Assistant
Department of Electronics & Communication Technology, Gauhati University, Assam
Engaged in departmental teaching alongside doctoral research, as part of the UGC-JRF/SRF fellowship.

Fellowships and Awards

UGC Junior Research Fellowship / Senior Research Fellowship 2013–18
Awarded by the University Grants Commission (UGC) for doctoral research.

Referee Works

 

Peer review for international journals and conferences.

Journals

IEEE
IEEE Sensors Journal
IEEE Sensors Council
IEEE
IEEE Transactions on Instrumentation and Measurement
IEEE Instrumentation and Measurement Society
Nature Portfolio
Scientific Reports
Springer Nature

Conferences

IEEE · 2027
IEEE EM³I 2027
International Conference on Emerging Materials, Measurement Technologies and Machine Intelligence