BLUE-LIGHT 2ND-HARMONIC GENERATION IN THE ORGANIC-CRYSTAL ORTHO-DICYANOVINYL-ANISOLE

Type I phase matched second harmonic generation (SHG) in the organic c rystal ortho-Dicyanovinyl-anisole (DIVA) has been measured for a range of near infrared fundamental wavelengths (855-960 nm). Turning curves for type I phase matched SHG were derived from measured refractive in dex values and show noncritical phase matching at 860. Measured type I phase matched SHG is in close agreement with the calculated results a nd gives effective SHG coefficients ranging from 1.9 to 5.9 times as l arge as d(32) Of potassium niobate. (C) 1997 American Institute of Phy sics.