Exciton Dynamics in soluble Poly(p-phenylene-vinylene): Towards an Ultrafast Excitonic Switch
Journal Article
·
· Physical Review Letters
- University of Utah, Physics Department, Salt Lake City, Utah 84112 (United States)
- Electronic Engineering Department, Osaka University, Yamada-Oka 2-1, Suita (Japan)
We have applied a variety of ps transient and cw optical techniques to elucidate the dynamics, absorption, and emission properties of excitons in soluble derivatives of poly(p-phenylene vinylene) neat films and dilute solutions. We found that the photogenerated singlet excitons in both films and solutions are characterized by strong stimulated emission and {ital two} photoinduced absorption bands. We demonstrate that these bands can be used to form an ultrafast optical switch in the near IR spectral range with variable switching times. {copyright} {ital 1997} {ital The American Physical Society}
- DOE Contract Number:
- FG03-93ER45490
- OSTI ID:
- 656099
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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