Prof. Anil Kumar Chaudhary, Senior Professor, DIA-CoE (ACRHEM), School of Physics, University of Hyderabad (UoH), recently undertook an academic outreach visit to leading research institutions in the Czech Republic, Poland, and Germany between 2-16 Dec., 2025. The visit highlighted the global research contributions of UoH in the frontier areas of Terahertz (THz) science and photoacoustic-based explosives detection technologies.
During the visit, Prof. Chaudhary was invited to deliver a series of lectures and seminars covering two major thrust areas of his research group:
(i) Generation of Terahertz radiation using organic and inorganic nonlinear optical crystals, along with spectroscopy and imaging applications; and
(ii) Development of pulsed photoacoustic pyro-analyzer systems and spectroscopy techniques for detecting high-energy molecules and understanding their thermal decomposition mechanisms.
The lectures were well received by faculty members, research scholars, and post-doctoral fellows, generating strong interest in both the advanced scientific techniques and their real-world field applications.
(i) The first invited lecture, titled “Generation of Efficient THz Radiation from Organic and Inorganic Nonlinear Crystals and Its Applications,” was delivered at the Institute of Physics (FZU), Czech Academy of Sciences, Prague, Czech Republic, on 09.12.2025. The talk was organized by Prof. Petr Kužel, THz Laboratories, Department of Condensed Matter Physics. The lecture attracted wide attention from faculty and researchers, leading to detailed discussions on common scientific challenges and plans for joint research on organic nonlinear crystals and characterization of two-dimensional materials.
(ii) The second lecture, “Designing UV-IR-THz Based High-Q Photoacoustic Sensors for Low-Level Detection of Decomposed By-Product Gases from High-Energy Materials,” was delivered at Wrocław University of Science and Technology, Wrocław, Poland, on 10.12.2025. The seminar was organized by Prof. Robert Kudrawiec, Head, Department of Fundamental Problems of Technology. This interaction opened new avenues for collaborative research on the application of photoacoustic techniques to understand the thermal behavior of semiconductors and THz-based optical characterization of newly synthesized semiconductor materials.
(iii) The third lecture, titled “Time-Domain Terahertz and Photoacoustic Spectroscopy Techniques for Characterization of High-Energy Molecules,” was delivered on 12.12.2025 at the Department of Chemistry, Ludwig-Maximilians-Universität München (LMU), Germany. The seminar was organized by Prof. Dr. Thomas M. Klapötke, Head, High Energy Materials Group. The presentation of newly generated results on the decomposition mechanisms of high-energy molecules under controlled pressure and temperature conditions using pulsed photoacoustic pyro-analysis attracted significant attention and was highly appreciated by the research community.
With Professor Wroclaw
Both research groups agreed to initiate joint studies on newly synthesized green energy materials at LMU, Germany, with collaborative experimental activities planned at the HCU campus in India. Prof. Chaudhary was also felicitated by research scholars and post-doctoral fellows during an evening Christmas gathering. The lecture was rated “excellent” by Prof. Klapötke on his official Twitter account.
FZU laboratory
Finally , Prof. Chaudhary, was invited to visit the THz Labs of Toptica Co. Pvt. Ltd., Munich , ( a leading THz company of the world) on dated 13.12.2025 . The company’s Sr. Scientist Dr. D. Anselm has organized the visit and participated in the scientific discussion. It was an unique experience for him and provided an opportunity to see the future ongoing development in the field of THz technology. Based on many innovative approach and converting the fiber coupled THz system into 2D-imaging system in reflection geometry .The company has treated UoH group as one of the best user of their system for generating very new valuable scientific information .
Overall, this academic visit significantly enhanced the international visibility of the University of Hyderabad’s physics research and opened new pathways for global academic partnerships in advanced optical sensing and defense-related technologies