Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published October 28, 2021 | Published + Supplemental Material
Journal Article Open

A hybrid coupler for directing quantum light emission with high radiative Purcell enhancement to a dielectric metasurface lens


Quantum photonic technologies such as quantum sensing, metrology, and simulation could be transformatively enabled by the availability of integrated single photon sources with high radiative rates and photon collection efficiencies. We address these challenges for quantum emitters formed from color center defect sites such as those in hexagonal boron nitride, which are promising candidates as single photon sources due to their bright, stable, polarized, and room temperature emission. We report design of a nanophotonic coupler from color center quantum emitters to a dielectric metasurface lens. The coupler is comprised of a hybrid plasmonic–dielectric resonator that achieves a large radiative Purcell enhancement and partial control of far-field radiation. We report radiative Purcell factors up to 285 and photon collection efficiencies up to 89% for a lossless metasurface, applying a continuous hyperboloidal phase-front. Our hybrid plasmonic–dielectric coupler interfacing two nanophotonic elements is a compound optical element, analogous to those found in microscope objective lenses, which combine multiple optical functions into a single component for improved performance.

Additional Information

© 2021 Published under an exclusive license by AIP Publishing. Submitted: 25 June 2021; Accepted: 3 October 2021; Published Online: 26 October 2021. This work was supported by the "Photonics at Thermodynamic Limits" Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0019140. This work was also supported by the U.S. Department of Defense, U.S. Air Force, Air Mobility Command, Air Force Office of Scientific Research (AFOSR) under Award Number FA2386-18-1-4095. Author Contributions: F.Y. and P.K.J. contributed equally to this work. The authors have no conflict to disclose. Data Availability: The data that support the findings of this study are available from the corresponding author upon reasonable request.

Attached Files

Published - 163103_1_online.pdf

Supplemental Material - supplementary_material_20210920.docx


Files (15.1 MB)
Name Size Download all
1.9 MB Preview Download
13.2 MB Download

Additional details

October 5, 2023
October 24, 2023