As Europe’s premier event for optics and photonics, the CLEO®/Europe-EQEC Conference annually gathers leading researchers and experts from around the world who drive groundbreaking advancements and innovation in their fields.
The program features plenary lectures, keynote and tutorial speakers, invited talks, contributed talks and poster sessions, ensuring a high-quality and enriching experience for all participants.
IMS contributions
For the 2025 edition, the IMS Laboratory is proud to highlight significant contributions from its Terahertz team, with:
- An oral presentation about “Terahertz Phase Imaging from a Sequence of Diffraction Patterns”.
This work demonstrated a lens-less phase retrieval approach using a sequence of diffraction patterns recorded at multiple axial planes. The team utilized a 3.5 THz quantum cascade laser source and a microbolometer camera to capture diffraction data at fine axial increments. The nonlinear optimization-based reconstruction retrieved high-fidelity phase information, enabling non-interferometric terahertz phase imaging with potential applications in sensing and non-destructive evaluation. - A poster presentation entitled “Terahertz Spatiotemporal Imaging by Multiangle Beam Projection”.
The poster introduced a spatiotemporal synthetic aperture framework that combines multiangle broadband THz illumination with time-domain spectroscopy detection. This approach achieves high-resolution phase and temporal delay imaging beyond the conventional resolution limits of THz systems, opening new directions for chemical sensing, material characterization, and biomedical imaging.
Award Recognition
The IMS Laboratory is pleased to share that Pitambar Mukherjee received the EPS-QEOD / Young Minds Best Student Presentation Award for his outstanding oral presentation at CLEO Europe 2025!
His work was also funded by the “École Doctorale SPI” from the University of Bordeaux.
A big thank you to the conference organizers, session chairs, and contributing authors (Vivek Kumar, Sylvain Gigan, Patrick Mounaix, Amaury Badon, Lorenzo Valzania, Frédéric Fauquet) from IMS, LKB and LP2N labs, as well as all colleagues who engaged with the presentations, posters, and discussions. Your questions and insights continue to inspire and shape our future research directions.

Looking ahead
Members of the IMS Terahertz team will also be presenting their work at FGTC 2025 and IRMMW-THz 2025 later this summer. Opportunities to discuss ongoing projects and explore potential collaborations in terahertz science and imaging are warmly welcomed.



