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Related Experiment Video

Updated: Jun 20, 2026

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

Visible color-center laser in diamond.

S C Rand, L G Deshazer

|September 5, 2009

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.

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$Synthesis and Microdiffraction at Extreme Pressures and Temperatures$

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

Fixed Target Serial Data Collection at Diamond Light Source

Fixed Target Serial Data Collection at Diamond Light Source

Published on: February 26, 2021

Related Experiment Videos

Last Updated: Jun 20, 2026

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

$Synthesis and Microdiffraction at Extreme Pressures and Temperatures$

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

Fixed Target Serial Data Collection at Diamond Light Source

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Published on: February 26, 2021

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.