Dr. Kousik Bera | Editorial Board Member

Published on by Physics and Quantum Physics

Dr. Kousik Bera | Editorial Board Member

Indian Institute of Technology Bombay | India

Kousik Bera is an emerging researcher in optical physics and advanced materials science, with an h-index of 4, 11 research documents, and 48 citations across 44 citing works. He earned his research training at premier Indian institutions, focusing extensively on Raman spectroscopy, thermal transport in two-dimensional materials, nonlinear optics, and quantum photonics. His experience spans studies on hexagonal boron nitride (hBN), GaN nanowall networks, Heusler alloys, Pd–Ag nanostructures, and entangled photon generation using PPKTP crystals. He has contributed to prestigious journals such as Optics Communications, Physical Review B, Journal of Applied Physics, Applied Physics Letters, Optical Materials, and Nanotechnology. His research interests include 2D materials, ultrafast laser–matter interactions, spectroscopy-driven materials characterization, superconductivity, and quantum-enhanced optical systems. Bera’s work integrates experimental materials science with quantum photonic applications, highlighting his interdisciplinary expertise. His contributions have supported advancements in thermal conductivity engineering, strain analysis, nonlinear optical behavior, and surface-enhanced Raman spectroscopy (SERS). He has collaborated with multiple national and international research groups, extending the impact of his work across several domains of condensed matter physics. With a steadily growing publication record and diversified research output, he continues to advance innovative spectroscopic and nanomaterial-based methodologies.

Profiles : Google Scholar | Scopus | Orcid

Featured Publications

Bera, K., Dubey, P. K., Kumar, A., & Jha, M. (2025). Bright source of degenerate polarization-entangled photons using type-0 PPKTP crystal: Effects of accidental coincidences. Optics Communications, 132401. https://doi.org/10.1016/j.optcom.2025.132401

Bera, K., Moram, S. S. B., Banerjee, D., Lahiri, J., & Rao Soma, V. (2024). Surface enhanced Raman scattering-based sensing and ultrafast nonlinear optical properties of silver-hexagonal boron nitride nanocomposites achieved by femtosecond laser ablation. Optical Materials, 157, 116393. https://doi.org/10.1016/j.optmat.2024.116393

Das, N. M., Chauhan, A., Bharati, M. S. S., Bera, K., et al. (2024). Nanostructured bi-metallic Pd–Ag alloy films for surface-enhanced Raman spectroscopy-based sensing application. Journal of Vacuum Science & Technology A, 42(5). https://doi.org/10.1116/6.0003748

Bera, K., Chugh, D., Bandopadhyay, A., Tan, H. H., Roy, A., & Jagadish, C. (2023). Decoupling the roles of defects/impurities and wrinkles in thermal conductivity of wafer-scale hBN films. Journal of Applied Physics, 134(15). https://doi.org/10.1063/5.0168186

Rahaman, A., Paramanik, T., Pal, B., Pal, R., Maji, P., Bera, K., et al. (2023). Surface-phase superconductivity in a Mg-deficient V-doped MgTi₂O₄ spinel. Physical Review B, 107(24), 245124. https://doi.org/10.1103/physrevb.107.245124

Dr. Vivek Kumar | Best Researcher Award

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Dr. Vivek Kumar | Best Researcher Award

Indian Institute of Technology Mandi | India

Dr. Vivek Kumar is a physicist at the Indian Institute of Technology (IIT) Mandi, School of Physical Sciences, where he earned his Ph.D. in Physics. His research focuses on quantum materials, quantum spin liquids, Raman spectroscopy, and density functional theory (DFT). Dr. Kumar has made significant contributions to understanding phonon dynamics, fractional spin fluctuations, and quantum liquid behavior in low-dimensional magnetic and topological systems. His notable publications include works in Physical Review B, 2D Materials, Annalen der Physik, and Physica Status Solidi (RRL), exploring complex phenomena such as electron-phonon coupling, Mott transitions, and the interplay of topology with magnetism in van der Waals materials. He has authored 6 research documents, which have collectively garnered 33 citations from 28 sources, reflecting the growing recognition of his contributions within the condensed matter physics community. With an h-index of 4, Dr. Kumar continues to advance the understanding of correlated quantum systems through both experimental Raman studies and first-principles simulations. His research excellence underscores the pursuit of novel states of matter in two-dimensional materials, offering promising directions for future quantum technologies and materials innovation.

Profiles : Google Scholar | Orcid | Scopus

Featured Publications

Kumar, D., Kumar, V., Kumar, R., Kumar, M., & Kumar, P. (2022). Electron-phonon coupling, thermal expansion coefficient, resonance effect, and phonon dynamics in high-quality CVD-grown monolayer and bilayer MoSe₂. Physical Review B, 105(8), 085419. https://doi.org/10.1103/PhysRevB.105.085419

Kumar, V., Kumar, D., Singh, B., Shemerliuk, Y., Behnami, M., Büchner, B., Aswartham, S., & Kumar, P. (2023). Fluctuating fractionalized spins in quasi-two-dimensional magnetic V₀.₈₅PS₃. Physical Review B, 107(9), 094417. https://doi.org/10.1103/PhysRevB.107.094417

Singh, B., Kumar, D., Kumar, V., Vogl, M., Wurmehl, S., Aswartham, S., Büchner, B., & Kumar, P. (2021). Fractional spin fluctuations and quantum liquid signature in Gd₂ZnIrO₆. Physical Review B, 104(13), 134402. https://doi.org/10.1103/PhysRevB.104.134402

Khan, N., Kumar, D., Kumar, V., Shemerliuk, Y., Selter, S., Büchner, B., Pal, K., Aswartham, S., & Kumar, P. (2024). The interplay of topology and antiferromagnetic order in two-dimensional van der Waals crystals of (NiₓFe₁₋ₓ)₂P₂S₆. 2D Materials, 11(3), 035018. https://doi.org/10.1088/2053-1583/ad3e0a

Kumar, V., Shemerliuk, Y., Behnami, M., Büchner, B., Aswartham, S., & Kumar, P. (2025). Dynamics of phonons and magnetic continuum in thin flakes of V(1−X)PS₃. Physical Review Materials, 9(7), 076201. https://doi.org/10.1103/pb66-73sc

Dr. Kousik Bera | Best Paper Award

Published on by Physics and Quantum Physics

Dr. Kousik Bera | Best Paper Award

Indian Institute of Technology Bombay | India

Dr. Kousik Bera is a research scholar at the Indian Institute of Technology Bombay, specializing in condensed matter physics, quantum materials, and spectroscopic techniques. He has authored 11 peer-reviewed publications, achieving over 45 citations with an h-index of 4, reflecting the quality and influence of his research. His work integrates Raman spectroscopy, ultrafast nonlinear optics, and quantum photonics to address key challenges in material science and quantum technology. Dr. Bera’s studies on wafer-scale hexagonal boron nitride (hBN) films have provided critical insights into the role of defects, wrinkles, and impurities in thermal transport, with implications for next-generation nanoelectronic devices. He has also contributed to the development of polarization-entangled photon sources using type-0 PPKTP crystals, advancing quantum communication and cryptography. His collaborative publications in Physical Review B, Journal of Applied Physics, Nanotechnology, Optical Materials, and Optics Communications highlight his multidisciplinary approach. With strong expertise in 2D materials, superconductivity, and quantum criticality, Dr. Bera’s research is paving the way for breakthroughs in photonic devices and quantum technologies. His academic productivity and impactful contributions make him a promising candidate for recognition and awards in physics and materials research.

Profile : Orcid

Featured Publications

Bright source of degenerate polarization-entangled photons using type-0 PPKTP crystal: Effects of accidental coincidences
Optics Communications, 2025 – Demonstrated a high-brightness entangled photon source, relevant for quantum communication and cryptography.

Surface-enhanced Raman scattering-based sensing and ultrafast nonlinear optical properties of silver–hexagonal boron nitride nanocomposites achieved by femtosecond laser ablation
Optical Materials, 2024 – Reported novel nanocomposites with enhanced SERS activity and nonlinear optical response for sensing applications.

Nanostructured bi-metallic Pd–Ag alloy films for surface-enhanced Raman spectroscopy-based sensing application
Journal of Vacuum Science & Technology A, 2024 – Developed bimetallic alloy films for ultrasensitive SERS-based detection.

Decoupling the roles of defects/impurities and wrinkles in thermal conductivity of wafer-scale hBN films
Journal of Applied Physics, 2023 – Provided critical insights into thermal transport mechanisms in large-area hBN films.

Surface-phase superconductivity in a Mg-deficient V-doped MgTi₂O₄ spinel
Physical Review B, 2023 – Investigated unconventional superconductivity and surface effects in spinel oxides.