Abstract

Many semiconductor light modulators rely on changes in excitonic absorption induced by electric fields. We study their temporal response in the framework of a one-dimensional model, for which we solve exactly the time-dependent Schrödinger equation. For a homogeneously broadened system, the electroabsorption response time is found to be simply the inverse of the (field-induced) exciton linewidth, which can be as short as 50 fsec.

© 1990 Optical Society of America

Fast atomic line filter/field ionization detector

S. H. Bloom, Eric Korevaar, M. Rivers, and C. S. Liu
Opt. Lett. 15(5) 294-296 (1990)

Coherent effects in pump–probe spectroscopy of excitons

M. Joffre, D. Hulin, A. Migus, A. Antonetti, C. Benoit à la Guillaume, N. Peyghambarian, M. Lindberg, and S. W. Koch
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Relaxation dynamics of photoexcitations in polydiacetylenes and polythiophene

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J. Opt. Soc. Am. B 7(8) 1630-1637 (1990)

Picosecond spectroscopy of exciton relaxation in organic crystals

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J. Opt. Soc. Am. B 7(8) 1615-1629 (1990)