Versatile Transparent-Melt Crystal-Growth Systems for Organic Nonlinear Optical Materials Using Bridgman-Stockbarger Technique

Single crystals of benzil, benzil aniline, and salicylidene-aniline have been successfully grown using a modified Bridgman-Stockbarger technique for three different crystal-growth systems. The unique feature of the Bridgman- Stockbarger technique is that the crystal-melt surface can be viewed from any direction, and the temperature between the hot and cold zones can be adjusted at any time during the melt.