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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Highly efficient infrared-to-visible energy upconversion in Er(3+):Y(2)O(3)
Optics Letters
|December 7, 2007
Summary
Intense green and red light emission was observed from Erbium-doped Yttrium Oxide (Er(3+):Y(2)O(3)) at room temperature. This finding demonstrates potential for efficient visible light generation using diode laser excitation.
Area of Science:
- Materials Science
- Optics and Photonics
- Solid-State Physics
Background:
- Rare-earth doped materials are crucial for optical applications.
- Yttrium Oxide (Y2O3) is a promising host for rare-earth ions like Erbium (Er3+).
- Efficient visible light emission from Er3+ is desirable for various photonic devices.
Purpose of the Study:
- To investigate the visible light emission properties of Er3+ doped Y2O3.
- To explore the potential of resonant sequential excitation for enhanced fluorescence.
- To quantify the luminance and emission power under continuous-wave (cw) diode laser pumping.
Main Methods:
- Synthesized and characterized Er3+-doped Y2O3 material.
- Utilized a 975 nm cw diode laser for resonant sequential excitation.
- Measured fluorescence intensity, luminance, and emission power at room temperature.
Main Results:
- Observed intense green and red fluorescence emission from Er3+ ions at room temperature.
- Achieved easily visible fluorescence even at low excitation power (27 mW).
- Recorded a total luminance of 39,000 cd/m(2) at 850 mW cw excitation power, corresponding to ~100 muW green and ~270 muW red emission.
Conclusions:
- Er3+:Y2O3 exhibits efficient visible light emission under diode laser excitation.
- Resonant sequential excitation is an effective method for achieving strong fluorescence.
- The material shows potential for applications requiring bright visible light sources.
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