Title :
Temperature-dependent coupling of GaAs quantum well and interfacial quantum dots studied with optical 2D fourier-transform spectroscopy
Author :
Moody, G. ; Siemens, M.E. ; Bristow, A.D. ; 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 spectra reveal time and temperature dependent relaxation from GaAs quantum well states into the interfacial quantum dot ensemble. We attribute the increased rate of relaxation at higher temperature to stimulated phonon emission.
Keywords :
Fourier transform spectra; III-V semiconductors; gallium arsenide; semiconductor quantum dots; semiconductor quantum wells; stimulated emission; GaAs; interfacial quantum; optical 2D Fourier-transform spectroscopy; quantum well states; stimulated phonon emission; temperature dependent relaxation; temperature-dependent coupling; Excitons; Gallium arsenide; Lattices; Nonlinear optics; Optical coupling; Optical mixing; Phonons; Quantum dots; Spectroscopy; Temperature;
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
