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Conferences > IQEC > 1994 > QWC > QWC50
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper QWC50

Effects of band-gap renormalization on relaxation of hot electrons studied with 15-fs resolution

Erik Westwig, Frank Wise, Dan Bailey, and Chris Stanton

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Abstract

Hot-carrier Coulomb interactions, such as band-gap renormalization (BGR) and plasma screening of electron-hole interactions, have been studied thoroughly under equilibrium conditions.1 By comparison, there are few studies of the dynamics of Coulomb interactions. Shank et al. measured the dynamics of band-edge absorption with 0.5-ps resolution,2 and, more recently, Gong and coworkers studied the band-edge dynamics with 75-fs pulses.3 In each case BGR occurred on a time scale shorter than the experimental resolution.

© 1994 Optical Society of America

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