Solid-state single photon source with Fourier transform limited lines at room temperature

Dietrich, A; Doherty, MW; Aharonovich, I; Kubanek, A

Solid-state single photon source with Fourier transform limited lines at room temperature

Dietrich, A Doherty, MW Aharonovich, I

Kubanek, A

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Publisher:: American Physical Society (APS)
Publication Type:: Journal Article
Citation:: Physical Review B, 2020, 101, (8)
Issue Date:: 2020-02-15

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Field	Value	Language
dc.contributor.author	Dietrich, A
dc.contributor.author	Doherty, MW
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935
dc.contributor.author	Kubanek, A
dc.date.accessioned	2020-10-30T03:45:49Z
dc.date.available	2020-10-30T03:45:49Z
dc.date.issued	2020-02-15
dc.identifier.citation	Physical Review B, 2020, 101, (8)
dc.identifier.issn	2469-9950
dc.identifier.issn	2469-9969
dc.identifier.uri	http://hdl.handle.net/10453/143609
dc.description.abstract	© 2020 American Physical Society. Solid-state single photon sources with Fourier transform (FT) limited lines are among the most crucial constituents of photonic quantum technologies and have been accordingly the focus of intensive research over the last several decades. However, so far, solid-state systems have only exhibited FT limited lines at cryogenic temperatures due to strong interactions with the thermal bath of lattice phonons. In this Rapid Communication, we report a solid-state source that exhibits FT limited lines measured in photoluminescence excitation (sub-100-MHz linewidths) from 3 to 300 K. The studied source is a color center in the two-dimensional hexagonal boron nitride and we propose that the center's decoupling from phonons is a fundamental consequence of the material's low dimensionality. While the center's luminescence lines exhibit spectral diffusion, we identify the likely source of the diffusion and propose to mitigate it via dynamic spectral tuning. The discovery of FT limited lines at room temperature, which once the spectral diffusion is controlled, will also yield FT limited emission. Our work motivates a significant advance towards room-temperature photonic quantum technologies and a different research direction in the remarkable fundamental properties of two-dimensional materials.
dc.language	en
dc.publisher	American Physical Society (APS)
dc.relation	http://purl.org/au-research/grants/arc/DP180100077
dc.relation.ispartof	Physical Review B
dc.relation.isbasedon	https://dx.doi.org/10.1103/PhysRevB.101.081401
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Fluids & Plasmas
dc.title	Solid-state single photon source with Fourier transform limited lines at room temperature
dc.type	Journal Article
utslib.citation.volume	101
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2020-10-30T03:45:36Z
pubs.issue	8
pubs.publication-status	Published
pubs.volume	101
utslib.citation.issue	8

Abstract:

© 2020 American Physical Society. Solid-state single photon sources with Fourier transform (FT) limited lines are among the most crucial constituents of photonic quantum technologies and have been accordingly the focus of intensive research over the last several decades. However, so far, solid-state systems have only exhibited FT limited lines at cryogenic temperatures due to strong interactions with the thermal bath of lattice phonons. In this Rapid Communication, we report a solid-state source that exhibits FT limited lines measured in photoluminescence excitation (sub-100-MHz linewidths) from 3 to 300 K. The studied source is a color center in the two-dimensional hexagonal boron nitride and we propose that the center's decoupling from phonons is a fundamental consequence of the material's low dimensionality. While the center's luminescence lines exhibit spectral diffusion, we identify the likely source of the diffusion and propose to mitigate it via dynamic spectral tuning. The discovery of FT limited lines at room temperature, which once the spectral diffusion is controlled, will also yield FT limited emission. Our work motivates a significant advance towards room-temperature photonic quantum technologies and a different research direction in the remarkable fundamental properties of two-dimensional materials.

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http://hdl.handle.net/10453/143609