You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
25 February 1993Dispersion of the molecular second-order nonlinear optical susceptibilities of nitropyridine derivatives
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.
The alert did not successfully save. Please try again later.
Christian Bosshard, Guenter Knoepfle, Philippe Pretre, 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