[Fluoride-oxide glass for high efficiency upconversion from IR to green]
1Laboratory of Excited State Processes, Chinese Academy of Sciences, 130021 Changchun.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 10, 2003
Summary
This study reports on Er3+-doped fluoride-oxide glass for efficient infrared-to-green light upconversion. The material shows intense green emission under 808 nm and 970 nm laser diode excitation, demonstrating potential for optical applications.
Area of Science:
- Materials Science
- Photonics
- Inorganic Chemistry
Context:
- Upconversion materials are crucial for applications like bio-imaging and lasers.
- Erbium (Er3+) doped glasses are widely investigated for their upconversion properties.
- Fluoride-oxide glasses offer a promising host matrix for rare-earth ions.
Purpose:
- To synthesize and characterize a novel fluoride-oxide glass doped with Er3+.
- To investigate the upconversion luminescence properties of the material under infrared excitation.
- To explore the relationship between excitation conditions and upconversion emission intensity.
Summary:
- A novel glass composition (60TeO2-8PbF2-10AlF3-10BaF2-10NaF-2ErO3/2) was prepared and characterized.
- Intense green upconversion emissions were observed under 808 nm and 970 nm laser diode (LD) excitation at room temperature.
- The upconversion mechanism was discussed, confirming a two-photon process for both excitation wavelengths.
Impact:
- Demonstrates efficient IR-to-green upconversion in a novel glass host.
- Provides insights into the upconversion mechanics and excitation dependencies.
- Highlights the potential of this material for optoelectronic and photonic devices.
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