Title :
Observation of Faraday rotation from a single quantum-dot spin
Author :
Dreiser, Jan ; Atatüre, Mete ; Badolato, Antonio ; Imamoglu, Atac
Author_Institution :
ETH Zurich, Zurich
Abstract :
Here, we present an all-optical dispersive measurement of a single spin confined in a self-assembled InAs/GaAs quantum dot (QD) (Atature etl., 2007). The time-averaged spin-state is observed via spin-dependent Faraday rotation of a spectrally detuned laser, induced by the polarization-and spin-selective trion transitions. The measurement was performed with a spin prepared by an independent laser (Atature et al., 2006) and in the case of a thermal state.
Keywords :
Faraday effect; III-V semiconductors; gallium arsenide; indium compounds; self-assembly; semiconductor quantum dots; trions; Faraday rotation; InAs-GaAs; all-optical dispersive measurement; polarization-and spin-selective trion transitions; self-assembled quantum dot; single quantum-dot spin; spectrally detuned laser; time-averaged spin-state; Detectors; Dispersion; Laser transitions; Optical polarization; Performance evaluation; Quantum dot lasers; Quantum dots; Rotation measurement; Signal detection; Trions;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386932
