  Fundamental properties of the spin-noise signal formation in a quantum-dot
microcavity are studied by measuring the angular characteristics of the
scattered light intensity. A distributed Bragg reflector microcavity was used
to enhance the light-matter interaction with an ensemble of n-doped
(In,Ga)As/GaAs quantum dots, which allowed us to study subtle effects of the
noise signal formation. Detecting the scattered light outside of the aperture
of the transmitted light, we measured the basic electron spin properties, like
g-factor and spin dephasing time. Further, we investigated the influence of the
microcavity on the scattering distribution and possibilities of signal
amplification by additional resonant excitation.
