Waveguide-integrated single-crystalline GaP resonators on diamond

Nicole Thomas, Russell J. Barbour, Yuncheng Song, Minjoo Larry Lee, Kai Mei C. Fu

Research output: Contribution to journalArticlepeer-review


Large-scale entanglement of nitrogen-vacancy (NV) centers in diamond will require integration of NV centers with optical networks. Toward this goal, we present the fabrication of single-crystalline gallium phosphide (GaP) resonator-waveguide coupled structures on diamond. We demonstrate coupling between 1 μm diameter GaP disk resonators and waveguides with a loaded Q factor of 3,800, and evaluate their potential for efficient photon collection if integrated with single photon emitters. This work opens a path toward scalable NV entanglement in the hybrid GaP/diamond platform, with the potential to integrate on-chip photon collection, switching, and detection for applications in quantum information processing.

Original languageEnglish (US)
Pages (from-to)13555-13564
Number of pages10
JournalOptics Express
Issue number11
StatePublished - 2014
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Waveguide-integrated single-crystalline GaP resonators on diamond'. Together they form a unique fingerprint.

Cite this