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Strong chiroptical effects in surface second harmonic generation obtained for molecules exhibiting excitonic coupling chirality

Marie-Claire Schanne-Klein 1 T. Boulesteix 1 François Hache 1 M. Alexandre 2 G. Lemercier 2 Chantal Andraud 2
1 LOB - Laboratoire d'optique et biosciences
2 STIM - Stéréochimie et Interactions Moléculaires
Abstract : We measured nonlinear optical activity in second harmonic generation (SHG) by reflection on a thin film of chiral molecules. We selected the structure of our molecules in order to obtain very large chiroptical effects. We indeed measured an angle of rotation of the second harmonic polarization as large as 66° for an acridine substituted Tröger base. This is in good agreement with our theoretical expectations for such an excitonic coupling chirality. Cop. 2002 Elsevier Science B.V. All rights reserved.
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Submitted on : Wednesday, June 26, 2013 - 9:03:11 PM
Last modification on : Friday, September 10, 2021 - 12:42:12 PM

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Marie-Claire Schanne-Klein, T. Boulesteix, François Hache, M. Alexandre, G. Lemercier, et al.. Strong chiroptical effects in surface second harmonic generation obtained for molecules exhibiting excitonic coupling chirality. Chemical Physics Letters, Elsevier, 2002, 362 (1-2), pp.103. ⟨10.1016/S0009-2614(02)01030-8⟩. ⟨hal-00836943⟩

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