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


EKİM U., Özkutay D., ÇELİKBİLEK ERSUNDU M., ERSUNDU A. E.

Light: Science and Applications, cilt.14, sa.1, 2025 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 1
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1038/s41377-024-01672-2
  • Dergi Adı: Light: Science and Applications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, Chemical Abstracts Core, Compendex, INSPEC, Directory of Open Access Journals
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

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 are actively exploring new materials and techniques for 3D imaging. Laser-based volumetric displays (VDs) offer a promising solution; nonetheless, existing screen materials fall short in meeting key requirements for long-term durability, full-color operation, and scalability. In this study, we present a comprehensive investigation into easily scalable rare-earth (RE3+) doped monolithic glasses (RE = Ho, Tm, Nd, Yb) capable of tunable full-color emission using a novel excitation modulation technique under 808 nm and 980 nm laser excitation and demonstrate their implementation as laser-based VD materials through prototyping. By controlling the movement of lasers’ pulses and galvanometer mirrors with waveform generators, our system generates images in simple and complex shapes with high purity red, green, and blue (RGB) colors. These images can be manipulated, including actions like translation, rotation, expansion, and sequential movement within the monolithic glass screen material. Our findings showcase the potential of glass-based dynamic VDs in revolutionizing display technology, offering superior color purity, vividness, and performance in comparison to conventional display systems.