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Enhanced photon extraction via cone structured waveguide from nitrogen vacancy center in diamond

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2023-09-22
JournalResults in Optics
AuthorsV. Priyadarshini, A. Dharani, Subhankar Roy, Jianping Hu, M. Ummal Momeen
InstitutionsChengdu University of Technology, Vellore Institute of Technology University
Citations1

Abstract

Section titled ā€œAbstractā€

We present a novel design of optical nanostructure for efficient light extraction from nitrogen vacancy (NV) center in diamond. Numerical simulations of the optimal structure exhibit significant collection efficiency along with a stable radiation profile. We achieved a photon collection efficiency of 70% even with a lower numerical aperture of 0.5. Two different approaches (simple cone and encapsulated cone) have been adopted to reach a high geometrical tolerance without affecting much to the efficiency and emission profile. Besides that, our structure adds an extra benefit in terms of emission enhancement near zero phonon line (ZPL) region of NV spectra. Overall, this cone shaped diamond structure provides a robust, highly efficient and directional emission which can be integrated with a quantum optical network for various applications.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2011 - Engineering chromium-related single photon emitters in single crystal diamonds [Crossref]
  2. 2014 - Numerical simulations of nanodiamond nitrogen-vacancy centers coupled with tapered optical fibers as hybrid quantum nanophotonic devices [Crossref]
  3. 2010 - A diamond nanowire single-photon source [Crossref]
  4. 2017 - Nanoscale sensing using point defects in single-crystal diamond: recent progress on nitrogen vacancy center-based sensors [Crossref]
  5. 2018 - Ultrabright room-temperature sub-nanosecond emission from single nitrogen-vacancy centers coupled to nano-patch antennas [Crossref]
  6. 2022 - Enhancing quantum cryptography with quantum dot single-photonsources [Crossref]
  7. 2011 - Enhanced single-photon emission from a diamond-silver aperture [Crossref]
  8. 2013 - The nitrogen-vacancy colour centre in diamond [Crossref]

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