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Profile, Teaching & Contact

Who I am and what I have done, what I teach at Central University of Jammu, the teachers this work descends from, and how to reach me.

Ashish K Sharma

Professor in the Department of Physics & Astronomical Sciences at Central University of Jammu, since July 2026. An experimental condensed-matter physicist: the work is thermoelectric energy conversion and power semiconductor devices, and the method is defect engineering with ion beams, answered by first-principles calculation.

The through-line since the doctorate has been building the instrument before running the experiment. Five cryogenic measurement systems designed and commissioned so far — one of them published in Review of Scientific Instruments and now used by collaborating national groups — and the in-situ DLTS facility at the IUAC Pelletron, which reads defects while the ion beam is still arriving — a pioneering in-situ capability for real-time measurement during swift-heavy-ion irradiation, first reported by the group in Semiconductor Science and Technology in 2018.

Publishes under the name Ashish Kumar: 91 papers, three patents, an h-index of 27 and about 1,850 citations. Continuous funding as principal investigator since 2015 from DST, SERB, ISRO, DRDO, UGC and IUAC.

Download biosketch (PDF) Research programme

Positions

  • 2026–Professor
    Central University of Jammu
  • 2023–26Associate Professor
    Central University of Jammu
  • 2021–23Associate Professor
    UPES Dehradun
  • 2020–21SERB Research Scientist
    Inter-University Accelerator Centre, New Delhi
  • 2015–20DST-INSPIRE Faculty
    Inter-University Accelerator Centre, New Delhi
  • 2013–15Postdoctoral Researcher
    Inter-University Accelerator Centre, New Delhi

Education

  • 2013Ph.D. in Physics
    IIT Delhi — GaN Schottky barrier diodes under swift heavy ion irradiation, under Prof. Rajendra Singh
  • 2007M.Sc. Physics
    Kurukshetra University, Haryana

Teaching Philosophy

Physics is best taught through the lens of active enquiry. Courses at CUJ are structured to connect foundational principles directly with open experimental questions — students in Condensed Matter Physics, for instance, regularly encounter material drawn from the group's own ongoing measurements, including live data from thermoelectric and defect-spectroscopy experiments.

This approach has a demonstrable record: three of the group's PhD students — including Dr. Vaishali Rathi, recipient of the Best PhD Thesis Award at UPES Dehradun — were first introduced to experimental research through taught courses before joining the laboratory. The boundary between classroom and research group is deliberately kept permeable.

Emphasis is placed on problem solving, quantitative reasoning, and the physical interpretation of data, with problem sets that draw on published literature wherever appropriate. Students are encouraged to engage with primary sources from the first year of postgraduate study.

"The laboratory and the lecture hall should be a continuous learning environment — not separate activities."

Research-Integrated Instruction

Lecture content in advanced courses is supplemented by primary literature, including the group's own publications. Students in Semiconductor Physics encounter real DLTS spectra, ZT measurements, and device I–V data as worked examples.

Laboratory-First Projects

Over 20 M.Sc./M.Tech project students have been supervised at CUJ, UPES, and IUAC New Delhi. Projects are structured to generate data contributing to the group's research programme, giving students genuine scientific ownership.

Resource Person — National Workshops

Regularly invited to deliver lectures at national refresher courses, workshops, and winter schools — including the UGC-HRDC Refresher Course in Physics (CUH, 2026) and the IUAC Winter School on Ion Beam Physics (2023).

Courses Taught

Central University of Jammu — Department of Physics & Astronomical Sciences.

Postgraduate
Condensed Matter Physics
Crystal structure, lattice dynamics, free electron theory, energy bands, semiconductors, magnetism, and superconductivity. The course draws directly on experimental examples from the group's thermoelectric and GaN device research.
Phonons Band theory Semiconductors Magnetism
PG / UG
Astronomy & Astrophysics
Stellar structure and evolution, galactic astronomy, cosmology, and observational techniques. Offered at both undergraduate and postgraduate level, with graded mathematical treatment.
Stellar physics Cosmology Observational methods
Undergraduate
Modern Physics
Relativity, origins of quantum mechanics, atomic and nuclear structure, radioactivity, elementary particle physics. Emphasises historical development alongside the mathematical framework.
Special relativity Quantum origins Nuclear physics
UG / PG
Thermal Physics
Thermodynamic laws and potentials, statistical mechanics (Maxwell–Boltzmann, Fermi–Dirac, Bose–Einstein distributions), kinetic theory, and phase transitions. Strong emphasis on physical intuition and entropy.
Thermodynamics Statistical mechanics Phase transitions
Postgraduate
Science & Technology of Thin Films
Nucleation and growth, vacuum technology, physical and chemical deposition — sputtering, thermal and e-beam evaporation, pulsed laser deposition, CVD — and the characterisation that follows. Taught against the deposition and measurement systems running in the Department.
Vacuum & growth PVD / CVD / PLD Film characterisation
PG / UG
Special Theory of Relativity
Inertial frames and the constancy of c, Lorentz transformations, simultaneity and time dilation, relativistic momentum and energy, four-vectors and the invariant interval. Worked through the experiments that forced each conclusion rather than as a set of formulae.
Lorentz transformations Four-vectors Mass–energy
Undergraduate
Physics in Everyday Life
Why a pressure cooker works, where the energy in a phone battery goes, what a thermoelectric cooler actually does, how a semiconductor sensor reads a temperature. For students meeting physics as a general course, taught from objects they already own.
Heat & energy Everyday devices Measurement

Teachers Who Shaped Me

Every teacher carries within them the echoes of those who taught them. These are the mentors whose guidance — in the laboratory, the lecture hall, and beyond — defined the physicist and teacher I have become.

Prof. Rajendra Singh, Ph.D. Supervisor, IIT Delhi
Prof. Rajendra Singh
Ph.D. Supervisor
Professor (Physics) & Associate Dean Research, IIT Delhi
Supervised my doctoral research at IIT Delhi with calm steadiness and quiet authority. He backed unconventional ideas, championed ethical research, and taught me that honest conduct — not politics — is the only currency worth holding in academic life. His model of building deep, genuine scientific relationships over decades has shaped how I network and collaborate to this day.
Dr. D.K. Kanjilal, Distinguished Scientist, IUAC New Delhi
Dr. D.K. Kanjilal
Postdoc Mentor
FNA, FNASc, Former Director & DAE Raja Ramanna Fellow, IUAC New Delhi
Gave me the most transformative gift a mentor can offer: complete independence. As a postdoc at IUAC he trusted me to pursue new ideas entirely on my own terms, and that confidence changed my relationship with research — from executing a programme to owning my own scientific questions. A true visionary, he always saw the larger scientific horizon and led with genuine empathy — never letting the pressures of running a large programme diminish his warmth for the people doing the work. His student-centric approach and unshakeable positivity in the face of setbacks remain my benchmark for how a laboratory leader should be.

Teachers, Leaders & Collaborators

Each of these teachers, leaders, and collaborators has directly influenced my learning, research, and approach to teaching. Through their example I absorbed the values of discipline, intellectual honesty, empathy towards students, staying true to oneself in the face of pressure, and maintaining a broad vision in both science and life. They showed — by how they treated their own students, collaborators, and colleagues — what it means to hold authority with grace and responsibility.
Prof. M. Jagadesh Kumar
Prof. M. Jagadesh Kumar
Ph.D. SRC Chairman & Teacher
Former UGC Chairman & VC JNU; Prof., Dept. of Electrical Engineering, IIT Delhi
Dr. Seema Vinayak
Dr. Seema Vinayak
Collaborator & Mentor
Former Director, Solid State Physics Laboratory (SSPL), DRDO, Delhi
Dr. Sundeep Chopra
Dr. Sundeep Chopra
Scientist & Mentor
Scientist, Inter-University Accelerator Centre (IUAC), New Delhi
Dr. Ram Sharma
Dr. Ram Sharma
Colleague & Mentor & Leader
Former Vice-Chancellor, University of Petroleum and Energy Studies (UPES), Dehradun
Prof. Fakir Chand
Prof. Fakir Chand
M.Sc. Teacher & Mentor
Professor of Physics, Kurukshetra University, Kurukshetra
A Lifetime of Teachers

No scientist is self-made. Long before any laboratory, the foundations were built by school teachers whose patience with a curious student I only fully appreciate now — and by undergraduate teachers who first made physics feel like a living discipline rather than a body of facts to memorise.

I carry gratitude to every teacher, colleague, and scientist who treated their subject as something worth caring about deeply: to the broader community at IUAC New Delhi, where an open scientific culture showed me that every interaction — across career stages — is a potential learning; and to my own students, who have taught me far more than they know about explaining things clearly, questioning assumptions, and the responsibility that comes with standing at the front of a room.

Teaching is a relay. I became a teacher because of teachers — and everything I do in the classroom and the laboratory is, in some measure, a tribute to that chain.

Honours & Fellowships

Awards & Fellowships

  • 69th Lindau Nobel Laureate Meeting, Germany (2019) — selected among roughly 600 young scientists worldwide, from an Indian nomination pool of about 15–20 across all disciplines.
  • SERB Research Scientist Award (2020) — Government of India.
  • DST-INSPIRE Faculty Award (2015) — five-year national fellowship carrying ₹35 L of project support.
  • RSC Advances Outstanding Student Paper Award (2024) — for the PEDOT:PSS/Bi2Te3/rGO ternary composite work.
  • DST–IST Visiting Fellowship (2017) — University of Valladolid, Spain.
  • ICTP travel grant (2019) — Conference on Thermoelectricity, Trieste.
  • DST-ITS award — for DRIP XVII, the 17th International Conference on Defect Recognition, Imaging and Physics in Semiconductors.

Contact

Email

ashish.phy@cujammu.ac.in

For research collaborations, invited lectures and academic correspondence.

Office

Room No. 120 F, First Floor
Aryabhatta Bhawan (Science Block)
Department of Physics & Astronomical Sciences
Central University of Jammu
Rahya-Suchani, Samba
Jammu & Kashmir 181143, India

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