0437//O734 2003010721双轴晶体主平面上倍频的相位匹配=Phase matching forSHG in principal planes of biaxial crystals[刊,中]/杨胜利（厦门大学物理学系.福建,厦门（361005））,陈谋智//光电子·激光.-2002,13（6）.-622-625,...0437//O734 2003010721双轴晶体主平面上倍频的相位匹配=Phase matching forSHG in principal planes of biaxial crystals[刊,中]/杨胜利（厦门大学物理学系.福建,厦门（361005））,陈谋智//光电子·激光.-2002,13（6）.-622-625,631从折射率椭球方程和折射率椭球面出发,讨论光束在双轴晶体中传播及偏振的特性、主平面倍频共线相位匹配（PM）问题,得到了双轴晶体主平面内激光所有可能PM倍频的8种偏振组合及其相应的PM角公式、有效非线性（NL）系数d<sub>eff</sub>的一般表达式。展开更多
O734 2003053910双轴晶体主平面上倍频的相位匹配参量=Phase matchingparameters for doublings in principal planes of biaxial crystals[刊,中]/杨胜利（厦门大学物理学系.福建,厦门（361005））//光学学报.—2002,22（10）.—1159-1...O734 2003053910双轴晶体主平面上倍频的相位匹配参量=Phase matchingparameters for doublings in principal planes of biaxial crystals[刊,中]/杨胜利（厦门大学物理学系.福建,厦门（361005））//光学学报.—2002,22（10）.—1159-1164根据折射率椭球方程及双光轴晶体中光波的传播与偏振特性,分析了双轴晶体在主平面内激光倍频相位匹配的特性与方法,导出了光波在主平面内传播时倍频的相位失配关系;给出了双轴晶体中容许相位匹配倍频的相位匹配角及混频的有效非线性系数d<sub>eff</sub>的表达式。展开更多
Due to the limitation of Edlen Equation to compensate for air refractivity in ordinary air pressure, an experiment to study the relationship between air refractivity and temperature, along with its pressure, is design...Due to the limitation of Edlen Equation to compensate for air refractivity in ordinary air pressure, an experiment to study the relationship between air refractivity and temperature, along with its pressure, is designed and carried out from ordinary pressure to low pressure. The expansion of Edlen Equation is achieved by using the cascade-Correlation learning method, and a neural network architecture model. The applied accuracy of neural network is the same as that of Edlen Equation in an ordinary pressure zone.展开更多
In this paper, the optical wave propagation in lossy waveguides is described by the Helmholtz equation with the complex refractive-index, and the Chebyshev pseudospectral method is used to discretize the transverse op...In this paper, the optical wave propagation in lossy waveguides is described by the Helmholtz equation with the complex refractive-index, and the Chebyshev pseudospectral method is used to discretize the transverse operator of the equation. Meanwhile, an operator marching method, a one-way re-formulation based on the Dirichlet- to-Neumann （DtN） map, is improved to solve the equation. NumericM examples show that our treatment is more efficient.展开更多
文摘0437//O734 2003010721双轴晶体主平面上倍频的相位匹配=Phase matching forSHG in principal planes of biaxial crystals[刊,中]/杨胜利（厦门大学物理学系.福建,厦门（361005））,陈谋智//光电子·激光.-2002,13（6）.-622-625,631从折射率椭球方程和折射率椭球面出发,讨论光束在双轴晶体中传播及偏振的特性、主平面倍频共线相位匹配（PM）问题,得到了双轴晶体主平面内激光所有可能PM倍频的8种偏振组合及其相应的PM角公式、有效非线性（NL）系数d<sub>eff</sub>的一般表达式。
文摘O734 2003053910双轴晶体主平面上倍频的相位匹配参量=Phase matchingparameters for doublings in principal planes of biaxial crystals[刊,中]/杨胜利（厦门大学物理学系.福建,厦门（361005））//光学学报.—2002,22（10）.—1159-1164根据折射率椭球方程及双光轴晶体中光波的传播与偏振特性,分析了双轴晶体在主平面内激光倍频相位匹配的特性与方法,导出了光波在主平面内传播时倍频的相位失配关系;给出了双轴晶体中容许相位匹配倍频的相位匹配角及混频的有效非线性系数d<sub>eff</sub>的表达式。
文摘Due to the limitation of Edlen Equation to compensate for air refractivity in ordinary air pressure, an experiment to study the relationship between air refractivity and temperature, along with its pressure, is designed and carried out from ordinary pressure to low pressure. The expansion of Edlen Equation is achieved by using the cascade-Correlation learning method, and a neural network architecture model. The applied accuracy of neural network is the same as that of Edlen Equation in an ordinary pressure zone.
基金supported by the National Natural Science Foundation of China(No.11371319)the Zhejiang Provincial Natural Science Foundation of China(No.LY13A010002)
文摘In this paper, the optical wave propagation in lossy waveguides is described by the Helmholtz equation with the complex refractive-index, and the Chebyshev pseudospectral method is used to discretize the transverse operator of the equation. Meanwhile, an operator marching method, a one-way re-formulation based on the Dirichlet- to-Neumann （DtN） map, is improved to solve the equation. NumericM examples show that our treatment is more efficient.
