Dispersion of the molecular second-order nonlinear optical susceptibilities of nitropyridine derivatives

Christian Bosshard; Guenter Knoepfle; Philippe Pretre; Peter Guenter

doi:10.1117/12.139196

Translator Disclaimer

25 February 1993 Dispersion of the molecular second-order nonlinear optical susceptibilities of nitropyridine derivatives

Christian Bosshard, Guenter Knoepfle, Philippe Pretre, Peter Guenter

Author Affiliations +

Proceedings Volume 1775, Nonlinear Optical Properties of Organic Materials V; (1993) https://doi.org/10.1117/12.139196
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Molecular second-order nonlinear optical properties of a series of interesting nitropyridine derivatives, namely 2-cyclooctylamino-5-nitropyridine (COANP), 2-docosylamino-5- nitropyridine (DCANP), and 2-(N-prolinol)-5-nitropyridine (PNP) were investigated with two different methods: electric field-induced second-harmonic generation (EFISH) and a solvatochromic method. Both techniques yield the same values within the experimental errors, showing that the main contribution of the microscopic nonlinearity arises from a single intramolecular charge transfer transition. The measured values were shown to follow the theoretical two-level dispersion. A comparison of the hyperpolarizabilities and the macroscopic nonlinear optical coefficients shows a good quantitative agreement. This illustrates that intramolecular contributions are the main source for the large nonlinear optical responses observed in these crystals.

Citation Download Citation

Christian Bosshard, Guenter Knoepfle, Philippe Pretre, and Peter Guenter "Dispersion of the molecular second-order nonlinear optical susceptibilities of nitropyridine derivatives", Proc. SPIE 1775, Nonlinear Optical Properties of Organic Materials V, (25 February 1993); https://doi.org/10.1117/12.139196

ACCESS THE FULL ARTICLE