Chips at Work: Picosecond Imaging Circuit Analysis
J.A. Kash, J.C. Tsang
UEO 1999
Time-resolved and cw photoluminescence of excitons in coupled quantum wells with an applied electric field is modeled using a Fermi-Dirac distribution. This distribution can result from inhomogeneous broadening due to interface roughness and the strong, short-range electric dipole repulsion between excitons. The model quantitatively explains the striking temperature dependence of the luminescence linewidth and peak position previously interpreted as a phase transition to an ordered state [T. Fukuzawa, E. E. Mendez, and J. M. Hong, Phys. Rev. Lett. 64, 3066 (1990)]. At very low temperatures (6 K), the excitons are in a metastable distribution. © 1991 The American Physical Society.
J.A. Kash, J.C. Tsang
UEO 1999
J.A. Kash, E. Mendez, et al.
Applied Physics Letters
J.A. Kash, B. Pezeshki, et al.
LEOS 1995
J.A. Kash
UEO 1995