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New electro-optic effect: Sum-frequency generation from optically active liquids in the presence of a dc electric field

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Fischer,  Peer
Optical Nanoscopy, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Fischer, P., Buckingham, A. D., Beckwitt, K., Wiersma, D. S., & Wise, F. W. (2003). New electro-optic effect: Sum-frequency generation from optically active liquids in the presence of a dc electric field. Physical Review Letters, 91(17): 173901, pp. 173901-1-173901-4. doi:10.1103/PhysRevLett.91.173901.


Cite as: https://hdl.handle.net/21.11116/0000-000A-F4A6-7
Abstract
We report the observation of sum-frequency signals that depend linearly on an applied electrostatic field and that change sign with the handedness of an optically active solute. This recently predicted chiral electro-optic effect exists in the electric-dipole approximation. The static electric field gives rise to an electric-field-induced sum-frequency signal (an achiral third-order process) that interferes with the chirality-specific sum-frequency at second order. The cross-terms linear in the electrostatic field constitute the effect and may be used to determine the absolute sign of second- and third-order nonlinear-optical susceptibilities in isotropic media.