High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence Feedback

Abstract Focused ion beam implantation is ideally suited for placing defect centers in wide bandgap semiconductors with nanometer spatial resolution. However, the fact that only a few percent of implanted defects can be activated to become efficient single photon emitters prevents this powerful capa...

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Main Authors: Vigneshwaran Chandrasekaran, Michael Titze, Anthony R. Flores, Deanna Campbell, Jacob Henshaw, Andrew C. Jones, Edward S. Bielejec, Han Htoon
Format: Article
Language:English
Published: Wiley 2023-06-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202300190
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author Vigneshwaran Chandrasekaran
Michael Titze
Anthony R. Flores
Deanna Campbell
Jacob Henshaw
Andrew C. Jones
Edward S. Bielejec
Han Htoon
author_facet Vigneshwaran Chandrasekaran
Michael Titze
Anthony R. Flores
Deanna Campbell
Jacob Henshaw
Andrew C. Jones
Edward S. Bielejec
Han Htoon
author_sort Vigneshwaran Chandrasekaran
collection DOAJ
description Abstract Focused ion beam implantation is ideally suited for placing defect centers in wide bandgap semiconductors with nanometer spatial resolution. However, the fact that only a few percent of implanted defects can be activated to become efficient single photon emitters prevents this powerful capability to reach its full potential in photonic/electronic integration of quantum defects. Here an industry adaptive scalable technique is demonstrated to deterministically create single defects in commercial grade silicon carbide by performing repeated low ion number implantation and in situ photoluminescence evaluation after each round of implantation. An array of 9 single defects in 13 targeted locations is successfully created—a ≈70% yield which is more than an order of magnitude higher than achieved in a typical single pass ion implantation. The remaining emitters exhibit non‐classical photon emission statistics corresponding to the existence of at most two emitters. This approach can be further integrated with other advanced techniques such as in situ annealing and cryogenic operations to extend to other material platforms for various quantum information technologies.
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spelling doaj.art-99f2e2aa1aea458cb6d6b81ae22aae622023-06-23T07:34:34ZengWileyAdvanced Science2198-38442023-06-011018n/an/a10.1002/advs.202300190High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence FeedbackVigneshwaran Chandrasekaran0Michael Titze1Anthony R. Flores2Deanna Campbell3Jacob Henshaw4Andrew C. Jones5Edward S. Bielejec6Han Htoon7Center for Integrated Nanotechnologies Materials Physics and Applications Division Los Alamos National Laboratory Los Alamos NM 87545 USASandia National Laboratories Albuquerque NM 87123 USASandia National Laboratories Albuquerque NM 87123 USASandia National Laboratories Albuquerque NM 87123 USACenter for Integrated Nanotechnologies Sandia National Laboratories Albuquerque NM 87123 USACenter for Integrated Nanotechnologies Materials Physics and Applications Division Los Alamos National Laboratory Los Alamos NM 87545 USASandia National Laboratories Albuquerque NM 87123 USACenter for Integrated Nanotechnologies Materials Physics and Applications Division Los Alamos National Laboratory Los Alamos NM 87545 USAAbstract Focused ion beam implantation is ideally suited for placing defect centers in wide bandgap semiconductors with nanometer spatial resolution. However, the fact that only a few percent of implanted defects can be activated to become efficient single photon emitters prevents this powerful capability to reach its full potential in photonic/electronic integration of quantum defects. Here an industry adaptive scalable technique is demonstrated to deterministically create single defects in commercial grade silicon carbide by performing repeated low ion number implantation and in situ photoluminescence evaluation after each round of implantation. An array of 9 single defects in 13 targeted locations is successfully created—a ≈70% yield which is more than an order of magnitude higher than achieved in a typical single pass ion implantation. The remaining emitters exhibit non‐classical photon emission statistics corresponding to the existence of at most two emitters. This approach can be further integrated with other advanced techniques such as in situ annealing and cryogenic operations to extend to other material platforms for various quantum information technologies.https://doi.org/10.1002/advs.202300190focused ion beamin situ photoluminescencequantum defectssilicon carbidesingle photon sources
spellingShingle Vigneshwaran Chandrasekaran
Michael Titze
Anthony R. Flores
Deanna Campbell
Jacob Henshaw
Andrew C. Jones
Edward S. Bielejec
Han Htoon
High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence Feedback
Advanced Science
focused ion beam
in situ photoluminescence
quantum defects
silicon carbide
single photon sources
title High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence Feedback
title_full High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence Feedback
title_fullStr High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence Feedback
title_full_unstemmed High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence Feedback
title_short High‐Yield Deterministic Focused Ion Beam Implantation of Quantum Defects Enabled by In Situ Photoluminescence Feedback
title_sort high yield deterministic focused ion beam implantation of quantum defects enabled by in situ photoluminescence feedback
topic focused ion beam
in situ photoluminescence
quantum defects
silicon carbide
single photon sources
url https://doi.org/10.1002/advs.202300190
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