Detection of nanowatt microwave radiation by the photoluminescence of an ensemble of negatively charged nitrogen vacancies in diamond
Abstract
We report on detecting continuous 60-GHz microwave radiation with powers in the nanowatt range by the photoluminescence of an ensemble of negatively charged nitrogen vacancy (NV−) centers in diamond at room temperature. The high contrast of the optically detected magnetic resonance and the efficient photon collection yield a magnetic field sensitivity of 86 nT/Hz for continuous-wave laser excitation with a photon energy of 2.33 eV and a power density of 93 W/cm2. The efficiency of the microwave-power-to-magnetic-field conversion amounts to 0.54 mT/W. The microwave excitation also enhances the degree of the linear polarization of NV− photoluminescence at magnetic resonance conditions, and for linearly co-polarized NV− photoluminescence and laser light, the magnetic field sensitivity is improved by about 7%.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 05, 2018
- Source ID
- 10.1063/1.5053639
Entities
People
- D. Braukmann
- D. R. Yakovlev
- D. V. Azamat
- Evan R. Glaser
- Joerg Debus
- M. Bayer
- T. A. Kennedy
- V. Yu. Ivanov
Organizations
- German Research Foundation
- Institute of Physics
- Ministry of Science and Higher Education
- Office of Naval Research
- Palacký University Olomouc
- Russian Academy of Sciences
- Technical University of Dortmund
- United States Naval Research Laboratory