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Article Dans Une Revue Journal of Physical Chemistry C Année : 2008

Chiral Specificity of Doubly Resonant Sum-Frequency Generation in An Anisotropic Thin Film

Bertrand Busson

Résumé

The chiral specificity of infrared-visible sum-frequency generation (SFG) is investigated under doubly resonant (DR) conditions. An anisotropic thin film made of stacks of chiral supramolecular assemblies is investigated as a function of incoming and outgoing light polarizations. SFG experiments, crossed with in situ polarized absorption measurements, show that the double resonance process leads to a selection of the nonvanishing components of the chiral second-order susceptibility tensor. Specifically, it is demonstrated that a chiral component overcomes the achiral ones. This result is linked to the model for DR-SFG and to the selection rules of the vibration modes and electronic transition involved in the process.

Dates et versions

hal-02111111 , version 1 (15-05-2019)

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Bertrand Busson. Chiral Specificity of Doubly Resonant Sum-Frequency Generation in An Anisotropic Thin Film. Journal of Physical Chemistry C, 2008, 112 (31), pp.11813-11821. ⟨10.1021/jp7114719⟩. ⟨hal-02111111⟩
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