Please use this identifier to cite or link to this item: doi:10.22028/D291-29311
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Title: Continuous-wave room-temperature diamond maser
Author(s): Breeze, Jonathan D.
Salvadori, Enrico
Sathian, Juna
Alford, Neil McN.
Kay, Christopher
Language: English
Title: Nature
Volume: 555
Issue: 7697
Startpage: 493
Endpage: 496
Publisher/Platform: Nature Publishing Group
Year of Publication: 2018
Publikation type: Journal Article
Abstract: The maser-the microwave progenitor of the optical laser-has been confined to relative obscurity owing to its reliance on cryogenic refrigeration and high-vacuum systems. Despite this, it has found application in deep-space communications and radio astronomy owing to its unparalleled performance as a low-noise amplifier and oscillator. The recent demonstration of a room-temperature solid-state maser that utilizes polarized electron populations within the triplet states of photo-excited pentacene molecules in a p-terphenyl host paves the way for a new class of maser. However, p-terphenyl has poor thermal and mechanical properties, and the decay rates of the triplet sublevel of pentacene mean that only pulsed maser operation has been observed in this system. Alternative materials are therefore required to achieve continuous emission: inorganic materials that contain spin defects, such as diamond and silicon carbide, have been proposed. Here we report a continuous-wave room-temperature maser oscillator using optically pumped nitrogen-vacancy defect centres in diamond. This demonstration highlights the potential of room-temperature solid-state masers for use in a new generation of microwave devices that could find application in medicine, security, sensing and quantum technologies.
DOI of the first publication: 10.1038/nature25970
Link to this record: hdl:20.500.11880/27852
ISSN: 0028-0836
Date of registration: 20-Sep-2019
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Chemie
Professorship: NT - Prof. Dr. Christopher Kay
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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