%0 Journal Article %T Spatiotemporal Spin Noise Spectroscopy %+ Laboratoire Charles Coulomb (L2C) %+ Optique des états collectifs et du spin (OECS) %+ Nanophysique et Semiconducteurs (NEEL - NPSC) %A Cronenberger, Steeve %A Abbas, Chahine %A Scalbert, Denis %A Boukari, H. %< avec comité de lecture %Z L2C:19-138 %@ 0031-9007 %J Physical Review Letters %I American Physical Society %V 123 %N 1 %P 017401 %8 2019-07-02 %D 2019 %R 10.1103/PhysRevLett.123.017401 %Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]Journal articles %X We report on the potential of a new spin noise spectroscopy approach by demonstrating all-optical probing of spatiotemporal spin fluctuations. This is achieved by homodyne mixing of a spatially phase-modulated local oscillator with spin-flip scattered light, from which the frequency and wave vector dependence of the spin noise power is unveiled. As a first application of the method we measure the spatiotemporal spin noise in weakly n-doped CdTe layers, from which the electron spin diffusion constant and spin relaxation rates are determined. The absence of spatial spin correlations is also shown for this particular system. %G English %2 https://hal.science/hal-02192421/document %2 https://hal.science/hal-02192421/file/PhysRevLett.123.017401.pdf %L hal-02192421 %U https://hal.science/hal-02192421 %~ UGA %~ CNRS %~ INPG %~ NEEL %~ L2C %~ NEEL-NPSC %~ MIPS %~ UNIV-MONTPELLIER %~ UGA-COMUE %~ EMMAH-EQUIPE-AVIGNON %~ UM-2015-2021