Abstract
We demonstrate simultaneous red, green, and blue emission from a Yb3+-Er3+-Tm3+tridoped hexagonal β-NaYF4microrod, which supports whispering-gallery-mode (WGM) resonance, to realize white-light lasing under near-infrared excitation at room temperature. This can be done by optimizing the upconversion efficiency and emission intensity balance of the blue, green, and red peaks through the proper tuning of sensitizer (Yb3+) and activator (Er3+, Tm3+) concentration in the host matrix. In addition, we minimize the difference of lasing threshold and maintain stable single-mode operation to achieve simultaneous red, green, and blue lasing by optimizing the radius of the hexagonal microrods.
| Original language | English |
|---|---|
| Pages (from-to) | 1539-1543 |
| Number of pages | 5 |
| Journal | ACS Photonics |
| Volume | 4 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 21 Jun 2017 |
Keywords
- lanthanide ions
- NaYF hexagonal microrods 4
- upconversion emission
- whispering gallery mode
- white-light lasing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biotechnology
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering