Coherent two-dimensional electronic spectroscopy in the Soret band of a chiral porphyrin dimer
Using coherent two-dimensional (2D) electronic spectroscopy in fully noncollinear geometry, we observe the excitonic coupling of β,β′-linked bis[tetraphenylporphyrinato-zinc(II)] on an ultrafast timescale in the excited state. The results for two states in the Soret band originating from an excitoni...
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Veröffentlicht in: | New journal of physics 2013-02, Vol.15 (2), p.25006-12 |
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creator | Koch, Federico Kullmann, Martin Selig, Ulrike Nuernberger, Patrick Götz, Daniel C G Bringmann, Gerhard Brixner, Tobias |
description | Using coherent two-dimensional (2D) electronic spectroscopy in fully noncollinear geometry, we observe the excitonic coupling of β,β′-linked bis[tetraphenylporphyrinato-zinc(II)] on an ultrafast timescale in the excited state. The results for two states in the Soret band originating from an excitonic splitting are explained by population transfer with approximately 100 fs from the energetically higher to the lower excitonic state. This interpretation is consistent with exemplary calculations of 2D spectra for a model four-level system with coupling. |
doi_str_mv | 10.1088/1367-2630/15/2/025006 |
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Phys</addtitle><date>2013-02-05</date><risdate>2013</risdate><volume>15</volume><issue>2</issue><spage>25006</spage><epage>12</epage><pages>25006-12</pages><issn>1367-2630</issn><eissn>1367-2630</eissn><coden>NJOPFM</coden><abstract>Using coherent two-dimensional (2D) electronic spectroscopy in fully noncollinear geometry, we observe the excitonic coupling of β,β′-linked bis[tetraphenylporphyrinato-zinc(II)] on an ultrafast timescale in the excited state. The results for two states in the Soret band originating from an excitonic splitting are explained by population transfer with approximately 100 fs from the energetically higher to the lower excitonic state. This interpretation is consistent with exemplary calculations of 2D spectra for a model four-level system with coupling.</abstract><pub>IOP Publishing</pub><doi>10.1088/1367-2630/15/2/025006</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Coherence Electronics Excitation Excitation spectra Joining Spectra Spectroscopy Two dimensional |
title | Coherent two-dimensional electronic spectroscopy in the Soret band of a chiral porphyrin dimer |
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