Laser-Induced Control of the Optical Response of Aluminum Phthalocyanine Chloride Complexes Dissolved in Ethanol

We show that absorption spectra of aluminum chloride phthalocyanine (AlClPc) in the liquid phase can be dynamically modified through the time-resolved interaction with a second laser pulse during a time window on the order of 100 fs. The observed effects can be explained by laser-induced coherent co...

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Bibliographic Details
Published in:Frontiers in physics 2021-05, Vol.9
Main Authors: da Costa Castanheira, Carina, Persch, Andreas, Birk, Paul, Ott, Christian, Pfeifer, Thomas
Format: Article
Language:English
Subjects:
aluminum phthalocyanine chloride
atom-like multi-level simulation
coherence in the liquid phase
laser-induced control of the optical response
transient absorption spectroscopy
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Summary:We show that absorption spectra of aluminum chloride phthalocyanine (AlClPc) in the liquid phase can be dynamically modified through the time-resolved interaction with a second laser pulse during a time window on the order of 100 fs. The observed effects can be explained by laser-induced coherent coupling dynamics between the ground state and a bath of excited states as reproduced by a few-level toy model. The presented results help to understand how intense laser fields interact with complex molecules in solution, but in their laser-controlled response still much alike isolated atoms in the gas phase. This understanding can, in the future, be used to modify and control the dynamics in complex systems.
ISSN:2296-424X
2296-424X
DOI:10.3389/fphy.2021.627826