Coherence Properties of Electron-Beam-Activated Emitters in Hexagonal Boron Nitride under Resonant Excitation

Horder, J; White, SJU; Gale, A; Li, C; Watanabe, K; Taniguchi, T; Kianinia, M; Aharonovich, I; Toth, M

Coherence Properties of Electron-Beam-Activated Emitters in Hexagonal Boron Nitride under Resonant Excitation

Horder, J White, SJU Gale, A Li, C

Watanabe, K Taniguchi, T Kianinia, M

Aharonovich, I

Toth, M

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Publisher:: AMER PHYSICAL SOC
Publication Type:: Journal Article
Citation:: Physical Review Applied, 2022, 18, (6)
Issue Date:: 2022-12-01

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Field	Value	Language
dc.contributor.author	Horder, J
dc.contributor.author	White, SJU
dc.contributor.author	Gale, A
dc.contributor.author	Li, C https://orcid.org/0000-0002-8424-9721
dc.contributor.author	Watanabe, K
dc.contributor.author	Taniguchi, T
dc.contributor.author	Kianinia, M https://orcid.org/0000-0003-4073-1492
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935
dc.contributor.author	Toth, M https://orcid.org/0000-0003-1564-4899
dc.date.accessioned	2023-02-07T03:55:37Z
dc.date.available	2023-02-07T03:55:37Z
dc.date.issued	2022-12-01
dc.identifier.citation	Physical Review Applied, 2022, 18, (6)
dc.identifier.issn	2331-7019
dc.identifier.issn	2331-7019
dc.identifier.uri	http://hdl.handle.net/10453/165969
dc.description.abstract	Two-dimensional (2D) materials are becoming increasingly popular as a platform for studies of quantum phenomena and for the production of prototype quantum technologies. Quantum emitters in 2D materials can host two-level systems that can act as qubits for quantum information processing. Here, we characterize the behavior of position-controlled quantum emitters in hexagonal boron nitride at cryogenic temperatures. Over two dozen sites, we observe an ultranarrow distribution of the zero phonon line at approximately 436 nm, together with strong linearly polarized emission. We employ resonant excitation to characterize the emission lineshape and find spectral diffusion and phonon broadening contribute to linewidths in the range 1-2 GHz. Rabi oscillations are observed at a range of resonant excitation powers, and under 1-μW excitation a coherent superposition is maintained up to 0.90 ns. Our results are promising for future employment of quantum emitters in h-BN for scalable quantum technologies.
dc.language	English
dc.publisher	AMER PHYSICAL SOC
dc.relation	http://purl.org/au-research/grants/arc/DP190101058
dc.relation	http://purl.org/au-research/grants/arc/CE200100010
dc.relation.ispartof	Physical Review Applied
dc.relation.isbasedon	10.1103/PhysRevApplied.18.064021
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	© American Physical Society (APS) [Coherence Properties of Electron-Beam-Activated Emitters in Hexagonal Boron Nitride Under Resonant Excitation. Physical Review Applied 18, 6 (2022) https://doi.org/10.1103/PhysRevApplied.18.064021
dc.subject	02 Physical Sciences, 09 Engineering
dc.title	Coherence Properties of Electron-Beam-Activated Emitters in Hexagonal Boron Nitride under Resonant Excitation
dc.type	Journal Article
utslib.citation.volume	18
utslib.for	02 Physical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - MTEE - Research Centre Materials and Technology for Energy Efficiency
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access	*
dc.date.updated	2023-02-07T03:55:35Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	18
utslib.citation.issue	6

Abstract:

Two-dimensional (2D) materials are becoming increasingly popular as a platform for studies of quantum phenomena and for the production of prototype quantum technologies. Quantum emitters in 2D materials can host two-level systems that can act as qubits for quantum information processing. Here, we characterize the behavior of position-controlled quantum emitters in hexagonal boron nitride at cryogenic temperatures. Over two dozen sites, we observe an ultranarrow distribution of the zero phonon line at approximately 436 nm, together with strong linearly polarized emission. We employ resonant excitation to characterize the emission lineshape and find spectral diffusion and phonon broadening contribute to linewidths in the range 1-2 GHz. Rabi oscillations are observed at a range of resonant excitation powers, and under 1-μW excitation a coherent superposition is maintained up to 0.90 ns. Our results are promising for future employment of quantum emitters in h-BN for scalable quantum technologies.

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http://hdl.handle.net/10453/165969