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Dyad data overview University of Vienna 31.03.2009

Dyad data overview University of Vienna 31.03.2009. Janne Savolainen. University of Twente, the Netherlands. Structure. Purpurin (Pur) Carotenoid (Car). Absorption spectra. Pur. Dyad (solid line). Car (dash-dotted line). linker. Car. Pur (dashed line).

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Dyad data overview University of Vienna 31.03.2009

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  1. Dyad data overview University of Vienna 31.03.2009 Janne Savolainen University of Twente, the Netherlands

  2. Structure Purpurin (Pur) Carotenoid (Car)

  3. Absorption spectra Pur Dyad (solid line) Car (dash-dotted line) linker Car Pur (dashed line)

  4. Car: Transient absorption surface Short Long

  5. Car: Transient spectra and time traces

  6. Car: SAS Target analysis results

  7. Dyad

  8. Structure and spectra

  9. Fluorescence excitation spectrum: ET ~60%

  10. Transient absorption data T n S n S 2 4 2 Q S 1 y T 1 3 1 S S 0 0 carotenoid (donor) porphyrin(acceptor)

  11. Savolainen et al. J Phys Chem B 2008

  12. Fits well to the data

  13. Coherent Control

  14. Feedback signals Loss channel S n S 70% 2 50 fs probe IC 110 fs Q 30% S y 1 Functional channel probe ET Few ns 7.7 ps pump S S 0 0 Transient absorption spectrum at time delay of 8 ps carotenoid (donor) porphyrin(acceptor)

  15. Optimize the loss channel (IC/ET)

  16. Optimize IC/ET using Fourier parameterization

  17. Optimize ET/IC using Fourier parameterization Savolainen et al. PNAS 2008

  18. Savolainen et al. PNAS 2008

  19. 2D

  20. SAS and the laser spectrum

  21. 2D at T=60 fs real part

  22. 2D at T=60 fs Car bleach

  23. 2D at T=60 fs Pur Bleach

  24. 2D at T=60 fs Qy ESA

  25. 2D at T=60 fs HotS0

  26. 2D at T=60 fs ???

  27. 2D amplitude spectrum at T=60 fs

  28. Vibrational cross peak amplitude

  29. Summary 2D at 60 fs real part

  30. Carotenoid vs Dyad 2D at 0 fs amplitude spectra

  31. Acknowledgments FOM-institute AMOLF, University of Twente: Jennifer Herek Niels Dijkuizen Riccardo Fanciulli University of Marburg: Marcus Motzkus Tiago Buckup University of Vienna: Harald Kauffmann Jürgen Hauer Franz Milota Arizona state university: Ana Moore

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