Detection and amplification of spin noise using scattered laser light in a quantum-dot microcavity

A. N. Kamenskii, M. Yu. Petrov, G. G. Kozlov, V. S. Zapasskii, S. E. Scholz, C. Sgroi, A. Ludwig, A. D. Wieck, M. Bayer, Alex Greilich

Research output

Abstract

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 coherent scattering at the quantum dot ensemble. Detecting the scattered light outside of the aperture of the transmitted light, we measured the basic electron spin properties, such as 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.

Original languageEnglish
Article number041401
JournalPhysical Review B
Volume101
Issue number4
DOIs
Publication statusPublished - 2 Jan 2020

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Detection and amplification of spin noise using scattered laser light in a quantum-dot microcavity'. Together they form a unique fingerprint.

Cite this