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Updated: Jun 20, 2026
13:09
Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
Summary
Diamond H3 centers demonstrate efficient 530 nm laser action at room temperature. N3 centers reveal a metastable level, explaining low quantum efficiency and excited-state absorption in N3 luminescence.
Area of Science:
- Solid-state physics
- Quantum optics
- Materials science
Background:
- Diamond defects are promising for quantum technologies.
- H3 and N3 centers are key color centers in diamond with unique optical properties.
- Understanding their excited-state dynamics is crucial for device applications.
Purpose of the Study:
- To investigate laser action in H3 centers in diamond.
- To elucidate the excited-state dynamics of N3 centers in diamond.
- To correlate N3 center properties with optical performance.
Main Methods:
- Observation of laser action at 530 nm using H3 centers.
- Room temperature efficiency measurements.
- Optical double-resonance experiments on N3 centers.
Main Results:
- Achieved 13.5% efficiency for H3 center laser action at room temperature.
- Provided direct evidence for a (2)A metastable level in N3 centers.
- Identified the (2)A level as the cause of rapid excited-state decay, low quantum efficiency, and excited-state absorption in N3 luminescence.
Conclusions:
- H3 centers in diamond are viable for efficient room-temperature laser applications.
- The identified (2)A metastable level in N3 centers significantly impacts their optical performance.
- These findings offer insights for designing and optimizing diamond-based optical devices.
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