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Conferences > QELS > 2001 > QThL > QThL3
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 2001),
  • paper QThL3

Evidence of nonperturbative exciton- exciton scattering in four-wave-mixing signals in quantum well microcavities

N.H. Kwong, R. Takayama, R. Binder, I. Rumyantsev, and M. Kuwata-Gonokami

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Abstract

The role of exciton-exciton scattering in the nonlinear optical response of semiconductor quantum wells is well established. However, an interesting question arising from the system’s dimensionality has so far not been addressed. In the quantum theory of scattering in two dimensions, the scattering amplitude behaves non-smoothly and non-perturbatively at low energies. While the exact scattering amplitude vanishes as 1/ln (energy) as energy ↘ 0, the second Born approximation diverges logarithmically.1

© 2001 Optical Society of America

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