Low-frequency excitations could soon be mapped with nanometer precision

Jan 29, 2026 Researchers propose a method to detect and map low-frequency excitations in nonlinear materials at nanometer resolution, enabling far-infrared fingerprints. (Nanowerk News) Atoms never remain perfectly fixed, even inside solid materials. Instead, they vibrate around their equilibrium positions, giving rise to collective excitations known as phonons. These and...