SHG

Materials and Methods: SHG was performed in 39 women with abnormal vaginal bleeding. The results of SHG were compared with that of transvaginal sonography ( TVS), and with the pathologic results of uterine explorative curette or hysteroscopy.

材料和方法：对39例有异常阴道出血者行SHG检查，并将检查结果与经阴道超声（Transvaginal sonography，TVS）、诊断性刮宫或宫腔镜所获得的结果进行比较分析。

The second order nonlinear optical material, 2,4 dinitrophenol ( DNP ) was synthesized.

合成了二阶非线性光学材料2, 4-二硝基苯酚 ( DNP),测试了其二次谐波产生(SHG ) 的强度和晶体结构.

Optimum phase matching for SHG in biaxial crystals

双轴晶体中二次谐波产生的最佳相位匹配条件

SHG is usually performed in the first part of the menstrual cycle after menstruation.

通常在月经干净后先期做子宫超声造影.

Based on the theory of aperture function of the focused Gaussian beam SHG, the non phase matched ( NPM) SHG process in a crystal sphere is analyzed, and the optimum focus condition of type ⅰ NPM SHG is discussed.

根据聚焦高斯光束二次谐波产生的孔径方程理论，分析了晶体球中的第类非相位匹配二次谐波产生过程，讨论了晶体球中第类非相位匹配二次谐波最佳聚焦参数的选择。

The second order nonlinear susceptibility and SHG signal in the different system

不同晶系中二阶非线性极化率及SHG信号的研究

Study of Angle Distribution of Light Intensity in Powder SHG Method

粉末SHG法的光强角分布研究