Title :
Optical spin initialization and nondestructive measurement in a quantum dot molecule
Author :
Kim, Danny ; Economou, Sophia E. ; Badescu, S.C. ; Scheibner, M. ; Bracker, A.S. ; Bashkansky, M. ; Reinecke, T.L. ; Gammon, D.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
The spin of an electron in an InAs/GaAs quantum-dot molecule is optically prepared and nondestructively measured through trion-triplet states. With two-laser transmission spectroscopy we demonstrate both simultaneously, something not previously accomplished in single quantum dots.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; nondestructive readout; semiconductor quantum dots; triplet state; two-photon spectroscopy; InAs-GaAs; InAs/GaAs quantum-dot molecule; nondestructive measurement; optical spin initialization; trion-triplet states; two-laser transmission spectroscopy; Electron optics; Energy states; Laser transitions; Laser tuning; Magnetic field measurement; Magnetic fields; Optical sensors; Quantum dots; Spectroscopy; Trions; (160.4760) Optical Properties of Materials; (300.6470) Semiconductor Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
