Mapping Excited-State Dynamics by Coherent Control of a Dendrimer's Photoemission Efficiency

• Published in: Science (American Association for the Advancement of Science) Vol. 326; no. 5950; pp. 263 - 267
• Main Authors: Kuroda, Daniel G, Singh, C.P, Peng, Zhonghua, Kleiman, Valeria D
• Format: Journal Article
• Language: English
• Published: Washington, DC American Association for the Advancement of Science 09.10.2009; The American Association for the Advancement of Science
• Subjects: Chemical engineering; Chemistry; Dendrimers; Electric fields; Electric pulses; Emissions; Energy transfer; Exact sciences and technology; Fundamental areas of phenomenology (including applications); General and physical chemistry; Lasers; Macromolecules; Mapping; Molecules; Nonlinear optics; Optics; Photochemistry; Photons; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Physics; Q1; Quantum mechanics; Quantum theory; Step functions; Theory of reactions, general kinetics; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Ultrafast processes; optical pulse generation and pulse compression; Pulse shaping; Photoemission; Quantum optics; Photoinduced effect; Radiation matter interactions; Laser beam applications; Excited states; Optical pulse; Quantum interference phenomena; Donor acceptor interaction; Dendritic structure

Adaptive laser pulse shaping has enabled impressive control over photophysical processes in complex molecules. However, the optimal pulse shape that emerges rarely offers straightforward insight into the excited-state properties being manipulated. We have shown that the emission quantum yield of a d...