Full-color dynamic volumetric displays with tunable upconversion emission from RE3+-doped glasses (RE = Ho, Tm, Nd, Yb) under NIR laser excitation

Light Science & Applications, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 2, 2025

Abstract Three-dimensional (3D) imaging technology holds immense potential across various high-tech applications; however, current display technologies are hindered by limitations such as restricted viewing angles, cumbersome headgear, and limited multi-user accessibility. To address these challenges, researchers actively exploring new materials techniques for 3D imaging. Laser-based volumetric displays (VDs) offer a promising solution; nonetheless, existing screen fall short in meeting key requirements long-term durability, full-color operation, scalability. In this study, we present comprehensive investigation into easily scalable rare-earth (RE 3+ ) doped monolithic glasses = Ho, Tm, Nd, Yb) capable of tunable emission using novel excitation modulation technique under 808 nm 980 laser demonstrate their implementation laser-based VD through prototyping. By controlling the movement lasers’ pulses galvanometer mirrors with waveform generators, our system generates images simple complex shapes high purity red, green, blue (RGB) colors. These can be manipulated, including actions like translation, rotation, expansion, sequential within glass material. Our findings showcase glass-based dynamic VDs revolutionizing technology, offering superior color purity, vividness, performance comparison to conventional systems.

Language: Английский

Towards core–shell engineering for efficient luminescence and temperature sensing

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 249 - 257

Published: June 12, 2024

Language: Английский