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TECHNOLOGY

Building the source layer for quantum photonics

Illustration of an hBN flake with a mapped quantum emitter.
AVAILABLE NOW: hBN flake with a mapped quantum emitter

Photon Foundry develops room-temperature single-photon emitters in hexagonal boron nitride. Today, we grow hBN, fabricate and characterise research-grade emitters, and integrate them with photonic nanostructures. Productisation now focuses on repeatability, packaging and photonic-integration processes.

Technology overview

The technology in six answers

Illustration of a packaged single-photon source module concept with fibre input and output.
LONGER-TERM: packaged integrated single photon source concept

Photon Foundry is translating room-temperature quantum emission in hBN into repeatable, integrated sources designed for use beyond specialist laboratories. Longer-term product paths include packaged sources, sensing, QKD and QRNG hardware, education products, photonic integration and supporting software.

01

What is a single-photon emitter?

A nanoscale light source that releases one photon at a time. Those photons can carry quantum information or probe their environment in sensing systems.

02

Why is the source a bottleneck?

A deployable source must be stable, repeatable and easy to integrate. Sources requiring cryogenic cooling, fragile alignment or device-specific calibration add complexity to the systems built around them.

03

Why is hBN relevant?

hBN can host single-photon emitters operating at room temperature at wavelengths spanning the UV to NIR range. Its layered form factor creates promising routes to compact photonic integration.

04

What can Photon Foundry do today?

Photon Foundry can grow hBN; create, locate, map and characterise research-grade emitters; and fabricate monolithic and hybrid emitter-coupled photonic nanostructures.

05

What applications have been demonstrated?

The founding team has demonstrated proof-of-concept quantum key distribution, quantum random-number generation, quantum sensing and super-resolution imaging.

06

What still needs to be engineered?

The remaining work is product engineering: improve repeatability and process control, stabilise optical interfaces, package sources for use outside specialist laboratories, and establish scalable integration processes.

Conceptual flow from hBN material platform to a packaged source:

  1. 01hBN material >>
  2. 02Quantum emitter >>
  3. 03Photonic interface >>
  4. 04Packaged source

HOW IT WORKS

From emitter to engineered source

Our workflow connects materials growth and emitter selection with nanophotonic integration and packaging. Each stage generates evidence for the next.

  1. Current capability

    Create and characterise

    Optically active defects in hBN create quantum emission. Photon Foundry grows hBN, creates and locates emitters, measures their optical behaviour and selects research-grade sources for defined uses.

  2. Demonstrated capability

    Couple to photonic structures

    Selected emitters can be coupled to monolithic hBN or hybrid photonic and plasmonic structures that control, collect or route their light.

  3. Productisation

    Package and integrate

    A deployable source needs stable optical alignment, repeatable interfaces and packaging that works outside a specialist emitter laboratory. These are the current productisation priorities.

Research to product

Published science is the foundation; repeatable hardware is the product

Peer-reviewed publications establish the scientific foundation for hBN quantum emission, defect engineering and photonic integration; they do not establish a finished product. We are converting the foundation into repeatable processes, engineered interfaces and packaged sources.