AgGaSe2晶体的非线性光学数值分析毕业论文.docx

AgGaSe2晶体的非线性光学数值分析摘要：。根据非线性光学原理，较完整的对AgGaSe2晶体的光学震荡参数进行了数值分析，我们可以知道AgGaSe2晶体属于负单轴晶体,它是一种多功能晶体，它具有非线性光学性质，其非线性光学系数较大，而且能够实现非临界相位匹配，但由于这种晶体的抗激光损伤阈值较低，从而大大的减小了它的二次谐波发生的转换效率。然后计算得到在一定的泵浦光波长下，AgGaSe2晶体的角度调谐曲线和在温度20℃时AgGaSe2晶体折射率色散关系图、允许失配角、有效长度。其结果会对AgGaSe2光学参量研究具有一定参考价值。关键字：AgGaSe2晶体；非线性光学；数据分析AgGaSe2 nonlinear optical crystal of numerical analysisLipinsiPhysical and electronic information college physics Grade 2007 Instructor: zengtixianAbstract: According to nonlinear optics,and more complete numerical analysison to shock parameters Crystals of AgGaSe2 ,surely in this essay,AgGaSe2crystal is Negative uniaxial crystal. It is a multi-crystal. It has nonlinear optical properties, its large nonlinear optical coefficient, and to achieve non-critical phase matching, but because the crystals with lower resistance to laser damage threshold, and thus greatly decreasing the Er Ci it harmonic wave conversion efficiency occur.Then calculated the pump modulation in certain wavelengths AgGaSe2 crystals, the Angle of the temperature curve and attune AgGaSe2 crystal refractive index when 20 ℃, allowing dispersion relation graph supporting, effective length lost.the results of optical parameters of AgGaSe2 will have some reference value.Key words:AgGaSe2 crystalsNonlinear opticalData analysis目录摘要…………………………………………………………………………1ABSTRACT……………………………………………………………………1第一章绪论………………………………………………………………31.1 非线性光学的发展……………………………………………………4AgGaSe2晶体的发展和应用……………………………………………41.3主要研究内容和目的…………………………………………………5第二章AgGaSe2结构及物理属性……………………………………52.1 AgGaSe2晶体结构……………………………………………………52.2 AgGaSe2物理属性……………………………………………………82.2.1常用非线性光学晶体及其主要特性参数………………………82.2.2 AgGaSe2的基本特性参数………………………………………10第三章AgGaSe2晶体的非线性光学参数分析………………………123.1 非线性光学基础………………………………………………………123.2二阶非线性光学效应…………………………………………………13非线性极化系数………………………………………………………143.4 相位匹配及实现方法…………………………………………………153.5 相位匹配角……………………………………………………………183.6孔径效应与有效长度…………………………………………………213.7相位匹配允许角………………………………………………………223.8 最优位相匹配…………………………………………………………23参考文献……………………………………………………………………24致谢