| 摘要 |
<p>Provided are nonlinear optical materials that can be used for a number of optical applications include, but are not limited to, second harmonic genreation (SHG), sum-frequency generation (SFG), difference-frequency generation (DFG) and optical parametric amplification (OPA). The nonlinear optical materials of the presetn invetion are formed from divalent metal ions and borate anions to fomr a complex borate framework, with teh B:O ration of the framework being about 10:17. The present NLO materiasl generally satisfay Formula 1: Ba2-xMxB10O17 wherein M is a divalent metal ion; wherein x ranges from 0 to0.3. M of Formula 1 is independently selected from Groups IIA and IIB metals, perferably strontium, barium, and lead. Other charges species that charge balance the B10I17 species may also be used to form compounds satisfying Formula 1 as long as these compounds also exhibit NLO properties. Examples of nonlinear optical materials satisfying Formula 1 include, but are not limited to, Ba2B10O17, Ba1.8Sr0.2B10O17, and Ba1.85Pb0.15B10O17.</p> |
