Measurements of second-harmonic generation (SHG) from powders have indicated that 2-(N, N-dimethylamino)-5-nitroacetanilide (DAN) has a high second-order optical nonlinearity. This has been confirmed by the observation of efficient phase-matched SHG from a DAN single crystal. For l-mJ pulses at 1.064 µm, a conversion efficiency of 20% has been measured for a crystal 2 mm thick. X-ray crystallographic analysis suggests that this high efficiency derives from a favorable molecular packing.
© 1987 Optical Society of America
P. A. Norman, D. Bloor, J. S. Obhi, S. A. Karaulov, M. B. Hursthouse, P. V. Kolinsky, R. J. Jones, and S. R. Hall, "Efficient second-harmonic generation in single crystals of 2-(N,N-dimethylamino)-5-nitroacetanilide," J. Opt. Soc. Am. B 4, 1013-1016 (1987)