Ultra-Low-Loss Lithium Niobate Photonics Atomic-scale roughness engineering enables ultra-low-loss thin-film lithium niobate cavities. This advancement unlocks the potential for next-generation integrated photonic systems, supporting high-speed, efficient optical interconnects and emerging quantum technologies. More details can be found in the Research Article by Ali Khalatpour and co-workers (DOI: 10.1002/adom.202502355).
Khalatpour et al. (Sun,) studied this question.