Linear and nonlinear optical properties of the organic nonlinear optical crystal 2-adamantylamino-5-nitropyridine

摘要

2-adamantylamino-5-nitropyridine, an organic second-order nonlinear optical crystal viith large d coefficient, has been characterized in terms of its absorption and refractive indices to clarify its wavelength-conversion properties. Phase-matching curves are estimated both theoretically and experimentally. The results show that Type II angle-tuned phase-matched wavelength conversion such as second-harmonic generation and optical parametric generation are possible in the wavelength region from 1.2 to 1.7 mu m. In addition, 2-adamantylamino-5-nitropyridine shows higher wavelength-conversion efficiency than conventional inorganic crystal. These results indicate that it is possible for 2-adamantylamino-5-nitropyridine to provide Type II angle-tuned phase-matched wavelength conversion with high efficiency for optical communication systems. (C) 1998 Optical Society of America. [References: 27]