Birgitta Birgersdotter, the patron saint of Sweden, was a Christian mystic who received religious visions throughout her life. After becoming a widow in 1344 CE, she dedicated the remainder of her life to the Church. She is remembered for her good deeds, such as feeding and caring for the...
Research has shown that the second-order nonlinear optical properties of organic crystal materials are closely related to their molecular structures. The basic structures of ionic organic conjugated molecules with excellent nonlinear optical properties are summarized. The effects of molecular structure, for...