LED-pumped room-temperature solid-state maser
Abstract Room-temperature MASERs (Microwave Amplification by Stimulated Emission of Radiation) amplify electromagnetic waves at microwave frequencies with minimal noise. We demonstrate a cost-effective LED-pumped maser using pentacene-doped para-terphenyl as the gain medium. Here, we show that LED l...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Communications Engineering |
| Online Access: | https://doi.org/10.1038/s44172-025-00455-w |
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| author | Sophia Long Lisa Lopez Bethan Ford François Balembois Riccardo Montis Wern Ng Daan M. Arroo Neil McN. Alford Hamdi Torun Juna Sathian |
| author_facet | Sophia Long Lisa Lopez Bethan Ford François Balembois Riccardo Montis Wern Ng Daan M. Arroo Neil McN. Alford Hamdi Torun Juna Sathian |
| author_sort | Sophia Long |
| collection | DOAJ |
| description | Abstract Room-temperature MASERs (Microwave Amplification by Stimulated Emission of Radiation) amplify electromagnetic waves at microwave frequencies with minimal noise. We demonstrate a cost-effective LED-pumped maser using pentacene-doped para-terphenyl as the gain medium. Here, we show that LED light, which is brightness-enhanced and guided via a cerium-doped yttrium aluminium garnet luminescent concentrator, achieves persistent maser emission at 1.45 GHz with a duration of 200 µs and a microwave output power of 0.014 mW, surpassing previous non-laser pumped systems. Operating at low voltage, the LED-pumped maser ensures safety, reduced costs, and simple integration. Potential applications include sensitive magnetic resonance imaging, portable atomic clocks, quantum technologies, and enhanced deep-space radio astronomy. |
| format | Article |
| id | doaj-art-a19274a38ee846bebd804551ee08e1f7 |
| institution | Kabale University |
| issn | 2731-3395 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Engineering |
| spelling | doaj-art-a19274a38ee846bebd804551ee08e1f72025-08-20T03:45:49ZengNature PortfolioCommunications Engineering2731-33952025-07-01411710.1038/s44172-025-00455-wLED-pumped room-temperature solid-state maserSophia Long0Lisa Lopez1Bethan Ford2François Balembois3Riccardo Montis4Wern Ng5Daan M. Arroo6Neil McN. Alford7Hamdi Torun8Juna Sathian9Department of Mathematics, Physics and Electrical Engineering, Faculty of Engineering and Environment, Northumbria UniversityUniversité Paris-Saclay, Institut d’Optique Graduate School, CNRS, Laboratoire Charles FabryDepartment of Mathematics, Physics and Electrical Engineering, Faculty of Engineering and Environment, Northumbria UniversityUniversité Paris-Saclay, Institut d’Optique Graduate School, CNRS, Laboratoire Charles FabryDepartment of Pure and Applied Sciences, University of Urbino, Campus Scientifico Enrico MatteiDepartment of Materials, Imperial College LondonDepartment of Materials, Imperial College LondonDepartment of Materials, Imperial College LondonDepartment of Mathematics, Physics and Electrical Engineering, Faculty of Engineering and Environment, Northumbria UniversityDepartment of Mathematics, Physics and Electrical Engineering, Faculty of Engineering and Environment, Northumbria UniversityAbstract Room-temperature MASERs (Microwave Amplification by Stimulated Emission of Radiation) amplify electromagnetic waves at microwave frequencies with minimal noise. We demonstrate a cost-effective LED-pumped maser using pentacene-doped para-terphenyl as the gain medium. Here, we show that LED light, which is brightness-enhanced and guided via a cerium-doped yttrium aluminium garnet luminescent concentrator, achieves persistent maser emission at 1.45 GHz with a duration of 200 µs and a microwave output power of 0.014 mW, surpassing previous non-laser pumped systems. Operating at low voltage, the LED-pumped maser ensures safety, reduced costs, and simple integration. Potential applications include sensitive magnetic resonance imaging, portable atomic clocks, quantum technologies, and enhanced deep-space radio astronomy.https://doi.org/10.1038/s44172-025-00455-w |
| spellingShingle | Sophia Long Lisa Lopez Bethan Ford François Balembois Riccardo Montis Wern Ng Daan M. Arroo Neil McN. Alford Hamdi Torun Juna Sathian LED-pumped room-temperature solid-state maser Communications Engineering |
| title | LED-pumped room-temperature solid-state maser |
| title_full | LED-pumped room-temperature solid-state maser |
| title_fullStr | LED-pumped room-temperature solid-state maser |
| title_full_unstemmed | LED-pumped room-temperature solid-state maser |
| title_short | LED-pumped room-temperature solid-state maser |
| title_sort | led pumped room temperature solid state maser |
| url | https://doi.org/10.1038/s44172-025-00455-w |
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