Atomical manipulating of Te cluster in photonic glass

The integration of broadband and continuously tunable near-infrared (NIR) luminescence in solid-state materials remains a persistent challenge, owing to the inherent limitations of conventional ionic active dopants. Here, we report a topological structure assisted atomical manipulating of Te cluster in glass matrix for precisely management of the photon emission from the photonic germanate glass. Through selective tailoring of the network topology using cesium as a modifier and silicon as a compensator, we achieve tunable topological cages that enables the atomical control of Te clusters with tailored sizes and distributions approximately 1.4 to 2.5 nm. This approach allows for continuous spectral tuning of the NIR emission band from 900 nm to 1080 nm, with a maximum full width half-maximum exceeding 340 nm, effectively covering the short-wave infrared region. We demonstrate the fabrication of high-quality Te clusters activated optical fiber and achieve broadband amplified spontaneous emission output. Furthermore, we successfully realize advanced NIR three-dimensional computational imaging based on multi-angle projection and reconstruction, enabling non-invasive visualization of complex biological structures. This work establishes a generalized route for designing novel photonic materials with tailored optical response, opening new avenues for high-capacity optical communication, tunable laser technologies, and advanced bioimaging applications.