Gigantic spin-noise gain enables magnetic resonance spectroscopy of impurity crystals
arXiv:1912.12100 · doi:10.1103/PhysRevResearch.2.023317
Abstract
Spin noise spectroscopy is a method of magnetic resonance widely used, nowadays, in atomic and semiconductor research. Classical objects of the EPR spectroscopy - dielectrics with paramagnetic impurities - seemed to be unsuitable for this technique because of large widths of allowed optical transitions and, therefore, low specific Faraday rotation (FR). We show, however, that the FR noise detected at the wavelength of a weak optical transition (with low regular FR) may increase by many orders of magnitude as its homogeneous width decreases. This spin-noise gain effect, numerically described by the ratio of the inhomogeneous linewidth to homogeneous, relates primarily to forbidden intraconfigurational transitions of impurity ions with unfilled inner electronic shells. Specifically, for the f-f transitions of rare-earth ions in crystals, this factor may reach 10. In this paper, we report on the first successful application of spin noise spectroscopy for detecting magnetic resonance of rare-earth ions in crystals.
arXiv comment5 pages, 3 figures
References in corpus (17)
- Charge noise and spin noise in a semiconductor quantum device
- Spectroscopy of spontaneous spin noise as a probe of spin dynamics and magnetic resonance
- Observation of Faraday rotation from a single confined spin
- Spin noise spectroscopy in GaAs
- Coherent properties of single rare-earth spin qubits
- Nanophotonic coherent light-matter interfaces based on rare-earth-doped crystals
- Spin noise of electrons and holes in self-assembled quantum dots
- Semiconductor Spin Noise Spectroscopy: Fundamentals, Accomplishments, and Challenges
- Optical measurements of spin noise as a high resolution spectroscopic tool
- Two-color spin noise spectroscopy: Using spin fluctuation correlations to reveal homogeneous linewidths within quantum dot ensembles
- Optical Spin Noise of a Single Hole Spin Localized in an (InGa)As Quantum Dot
- Spin-noise-based magnetometry of an -doped GaAs microcavity in the field of elliptically polarized light
- GHz Spin Noise Spectroscopy in n-Doped Bulk GaAs
- Linear optics, Raman scattering, and spin noise spectroscopy
- A quantitative study of spin noise spectroscopy in a classical gas of K atoms
- Increased sensitivity of spin noise spectroscopy using homodyne detection in -doped GaAs
- Spin fluctuations of non-equilibrium electrons and excitons in semiconductors