Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen: http://dx.doi.org/10.18419/opus-13067
Autor(en): Meinel, Jonas
Vorobyov, Vadim
Yavkin, Boris
Dasari, Durga
Sumiya, Hitoshi
Onoda, Shinobu
Isoya, Junichi
Wrachtrup, Jörg
Titel: Heterodyne sensing of microwaves with a quantum sensor
Erscheinungsdatum: 2021
Dokumentart: Zeitschriftenartikel
Seiten: 8
Erschienen in: Nature communications 12 (2021), No. 2737
URI: http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-130861
http://elib.uni-stuttgart.de/handle/11682/13086
http://dx.doi.org/10.18419/opus-13067
ISSN: 2041-1723
Zusammenfassung: Diamond quantum sensors are sensitive to weak microwave magnetic fields resonant to the spin transitions. However, the spectral resolution in such protocols is ultimately limited by the sensor lifetime. Here, we demonstrate a heterodyne detection method for microwaves (MW) leading to a lifetime independent spectral resolution in the GHz range. We reference the MW signal to a local oscillator by generating the initial superposition state from a coherent source. Experimentally, we achieve a spectral resolution below 1 Hz for a 4 GHz signal far below the sensor lifetime limit of kilohertz. Furthermore, we show control over the interaction of the MW-field with the two-level system by applying dressing fields, pulsed Mollow absorption and Floquet dynamics under strong longitudinal radio frequency drive. While pulsed Mollow absorption leads to improved sensitivity, the Floquet dynamics allow robust control, independent from the system’s resonance frequency. Our work is important for future studies in sensing weak microwave signals in a wide frequency range with high spectral resolution.
Enthalten in den Sammlungen:08 Fakultät Mathematik und Physik

Dateien zu dieser Ressource:
Datei Beschreibung GrößeFormat 
s41467-021-22714-y.pdf2,41 MBAdobe PDFÖffnen/Anzeigen


Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons Creative Commons