Title :
Homogeneous linewidth temperature dependence of interfacial GaAs quantum dots studied with optical 2D Fourier-transform spectroscopy
Author :
Karaiskaj, D. ; Moody, G. ; Bristow, A.D. ; Siemens, M.E. ; Dai, X. ; Bracker, A.S. ; Gammon, D. ; Cundiff, S.T.
Author_Institution :
Nat. Inst. of Stand. & Technol., Univ. of Colorado, Boulder, CO, USA
Abstract :
Optical 2D Fourier-transform spectroscopy extracts the temperature-dependent homogeneous lineshape of an ensemble of interfacial quantum dots. The asymmetric lineshape reveals that confinement and excitation-induced dephasing compete with strong exciton-phonon interactions, which dominate at higher temperature.
Keywords :
Fourier transform spectroscopy; III-V semiconductors; gallium arsenide; phonon-exciton interactions; quantum dots; spectral line breadth; thermo-optical effects; GaAs; asymmetric lineshape; excitation induced dephasing; exciton-phonon interaction; homogeneous linewidth temperature dependence; interfacial quantum dot; optical 2D Fourier transform spectroscopy; Gallium arsenide; Quantum dots; Spectroscopy; Temperature dependence;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
