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Akademický článek

Tailoring ultrafast singlet fission by structural modification of phenazinothiadiazoles

Autor: Alagna N., Han J., Herz J., Perez Lustres J. L., Hahn S., Koser S., Geyer Florian L., Hahn Sebastian, Bunz U., Dreuw A., Buckup T., Motzkus M.

Publikováno v: EPJ Web of Conferences, Vol 205, p 09013 (2019)

Ultrafast transient absorption and quantum chemistry calculations are combined to demonstrate singlet fission in newly functionalized TIPS-Tetracenes. The coupling strength (but not the energy gap) between Si and ’(TT) states gauges singlet fission

Externí odkaz: https://doaj.org/article/e70385023f68457e866b44a19e0041c1

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Akademický článek

Resonant Two-Photon Excitation Pathways During Retinal-Isomerization in Bacteriorhodopsin

Autor: Motzkus M., Buckup T., Kraack J.P.

Publikováno v: EPJ Web of Conferences, Vol 41, p 07019 (2013)

Resonant two-photon excitation is observed in Bacteriorhodopsin using transient absorption experiments with hyperspectral probing (440 – 770 nm) at different excitation wavelengths. Signal contributions from ground as well as excited electronic sta

Externí odkaz: https://doaj.org/article/f4f7bbd6487546b8a1810e664028d490

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Akademický článek

Vibronic Coupling in Excited Electronic States Investigated with Resonant 2D Raman Spectroscopy

Autor: Motzkus M., Marek M.S., Kraack J.P., Buckup T.

Publikováno v: EPJ Web of Conferences, Vol 41, p 05018 (2013)

The coupling between molecular vibrational modes in the excited state is investigated by resonant Raman two-dimensional time resolved spectroscopy. Resonant 2D Raman exploits electronic resonances to enhance fifth-order signals. We apply this approac

Externí odkaz: https://doaj.org/article/e9fe512d3c704a1babb32a314c650269

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Akademický článek

Intense, directional UV emission from molecular nitrogen ions in an adaptively controlled femtosecond filament

Autor: Zheltikov A., Motzkus M., Pugžlys A., Kartashov D., Möhring J., Andriukaitis G., Baltuška A.

Publikováno v: EPJ Web of Conferences, Vol 41, p 10004 (2013)

Using phase-shaped millijoule 1030-nm femtosecond pulses generating a filament in a cell filled with N2, we obtain intense forward UV emission between vibrational manifolds of B2Σ and X2Σ states of N2+ for optimal pulse sequences. The effect is ten

Externí odkaz: https://doaj.org/article/2b23d9956ecc4a2583e297adc2fd4419

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