Researchers Demonstrate Collective Emission From Hexagonal Boron Nitride Emitter Ensembles

Breakthrough discovery in hBN could enable ultrabright LEDs, quantum computing, and secure communication

Published on Feb. 2, 2026

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Researchers have demonstrated a phenomenon called 'superradiance' - dramatically enhanced and accelerated light emission - from tiny defects within hexagonal boron nitride (hBN) material. This collective emission, which occurs at room temperature, is a potential game-changer for quantum technologies like computing, communication, and advanced sensing.

Why it matters

Achieving efficient light emission from solid materials at room temperature has long been a challenge for physicists. The discovery of superradiance in hBN defects overcomes this hurdle, unlocking new possibilities for practical quantum applications that were previously limited by the need for complex setups and cryogenic temperatures.

The details

Researchers have identified and activated ensembles of 'B-center' defects - naturally occurring imperfections in the hBN structure - using focused electron beams. By carefully controlling the density and proximity of these defects, they've observed a significant reduction in the time it takes for light to be emitted, from nanoseconds to picoseconds. This collective, superradiant behavior amplifies the light output and speeds up the emission process.

  • The research was spearheaded by teams at the Technion – Israel Institute of Technology and the National Institute for Materials Science (NIMS) in Japan.

The players

Technion – Israel Institute of Technology

A leading research university in Israel that has contributed to the breakthrough research on superradiance in hexagonal boron nitride.

National Institute for Materials Science (NIMS)

A Japanese research institute that has also played a key role in the discovery of superradiant light emission from hBN defect ensembles.

Dr. Anya Sharma

A quantum materials scientist at the University of California, Berkeley who has provided expert commentary on the scalability and potential of hBN for photonic applications.

Professor Kenji Watanabe

A lead author on one of the key studies and a researcher at NIMS who believes hBN could become a cornerstone of future quantum technologies.

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What they’re saying

“The scalability of hBN is a major advantage. You can potentially create large arrays of these defect ensembles, paving the way for complex photonic circuits.”

— Dr. Anya Sharma, Quantum materials scientist (University of California, Berkeley)

“We're still in the early stages of understanding the full potential of hBN, but the initial results are incredibly encouraging, and we believe this material could become a cornerstone of future quantum technologies.”

— Professor Kenji Watanabe (National Institute for Materials Science (NIMS)

What’s next

Researchers are exploring techniques like electron beam irradiation and ion implantation to control the number and arrangement of B-centers in hBN, further tailoring the material's optical properties and unlocking its full potential for quantum applications.

The takeaway

The discovery of superradiant light emission from hBN defect ensembles at room temperature represents a significant breakthrough in the quest for efficient solid-state light sources, with far-reaching implications for the development of quantum technologies like computing, communication, and advanced sensing.