Abstract

Single-crystal films of 2-cyclooctylamino-5-nitropyridine have been prepared by the shear method, and the second-order susceptibility has been measured by second-harmonic generation. Polarization-dependent measurements in an a plate show that the maximum value of d_eff (~56 pm/V) is approximately 10 times larger than that of LiNbO₃ and that the ratio d₃₂/d₃₃ is approximately −4 at a 1064-nm wavelength. This material has a phase-matching direction (type I only) for propagation parallel to the plane of the a plate. The results of these measurements are important for phase-matched second-harmonic generation in waveguides of this material.

© 1994 Optical Society of America

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