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Optica Publishing Group
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1989),
  • paper FHH2

Phonon-mediated optical Stark effect in polydiacetylene

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Abstract

The polydiacetylene poly-[2,4-hexadiyn-1,6-diol-bis(p-toluene sulfonate)] (PDA PTS) is a prototype 1-D polymer semiconductor with a very strong excitodic absorption peak (α ≃ 106 cm−1) centered at 2 eV. PTS is known to possess a large fast (≃ 2-ps) nonlinear optical response of the resonantly excited excitonic absorption.1,2 This nonlinear response is accounted for by a phase space filling model that describes successfully the optical nonlindarities in GaAs/AIGaAs quantum well structures.3

© 1989 Optical Society of America

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