Aleksandrs Leitis

Aleksandrs Leitis is a former researcher at the School of Life Sciences (École Polytechnique Fédérale de Lausanne) with expertise in photonics, nanophotonics, and biosensing. His work focuses on dielectric metasurfaces, mid-infrared photonics, and MEMS-based optical systems. Leitis has contributed to advancements in programmable Huygens' metasurfaces, wafer-scale functional metasurfaces, and AI-enhanced biosensing technologies. His research integrates MEMS fabrication with optical engineering to create innovative platforms for spectroscopy and molecular detection.

Key research interests include optical wavefront manipulation, broadband sensing, and vibrational light-matter coupling. Leitis collaborates with institutions like the European Research Council and National Yang Ming Chiao Tung University on projects involving mid-IR photonics and surface-enhanced spectroscopy. Notable achievements include developing angle-multiplexed metasurfaces for molecular fingerprinting and gradient high-Q resonators for infrared absorption spectroscopy.

His articles highlight trends in MEMS-optical hybrid systems, programmable phase control, and AI-driven sensor optimization. Leitis has pioneered wafer-scale fabrication techniques for functional metasurfaces, enabling scalable mid-IR photonics applications. Earlier work explored cold atom optical pumping effects in sodium and cesium beams.