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

Frontiers in Physics

Paul Birk¹  Andreas Persch¹  Carina da Costa Castanheira²  Thomas Pfeifer³  Christian Ott⁴ 

[1] Heidelberg, Germany;[e-mail], [e-mail];null;[e-mail];

关键词: transient absorption spectroscopy;    coherence in the liquid phase;    atom-like multi-level simulation;    laser-induced control of the optical response;    aluminum phthalocyanine chloride;   

DOI  :  10.3389/fphy.2021.627826

来源: Frontiers

【 摘 要 】

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.

【 授权许可】

CC BY