In This paper some problems, which should be noticed in the measurements of organicmolecular first hyperpolarizability（β） by the solvatochromism , are discussed based on the resultsof the measurements for 11 compou...In This paper some problems, which should be noticed in the measurements of organicmolecular first hyperpolarizability（β） by the solvatochromism , are discussed based on the resultsof the measurements for 11 compounds .The experiments indicate theat the selection of solvent used is the basis of the method to fit for use. The determination of the parameter a, which is the radius of a spherical cavity occupied by the molecules in the solutions, is the key to decide’the reasonableness of the obtained results and the formula for a=1/2(l’+rv),has been suggestedin which l is the molecular length of the nonlinear optical active part and can be obtained fromvalues of bond lengths in literature, rv is the average spherical radius of used solvents.展开更多
In the twentieth century,revolutionary changes took place in the human society and people's life-style due to the improvement of the optoelectronic information technology based on the second-order nonlinear optica...In the twentieth century,revolutionary changes took place in the human society and people's life-style due to the improvement of the optoelectronic information technology based on the second-order nonlinear optical effects,such as the electro-optic effect,the second harmonic generation(SHG),and so on.Along with the rapid development of light information technology,new principles and methods of nonlinear optics are needed,and the third-order nonlinear optical effects attract great attention.The research progress of nonlinear optics is reviewed in this article.Our research work on the third-order nonlinear optical materials,ultrafast and low-power organic all-optical photonic crystal switching are introduced.展开更多
O437 2005042695 状态反馈控制声光双稳系统的倍周期分岔和混沌=Con- trol of period-doubling bifurcation and chaos in acousto-op- tical bistable system by the feedback of states[刊,中]／吕翎(辽宁师范大学物理系,辽宁,大连(11...O437 2005042695 状态反馈控制声光双稳系统的倍周期分岔和混沌=Con- trol of period-doubling bifurcation and chaos in acousto-op- tical bistable system by the feedback of states[刊,中]／吕翎(辽宁师范大学物理系,辽宁,大连(116029)),杜增…／／光子学报,-2004,33(11),-1401-1404 设计了一种动力学状态反馈(DSF)方法控制非线性混沌系统。介绍了DSF方法的控制原理,并用此方法控制声光双稳(AOB)系统的混沌,以此验证其有效性。仿真模拟显示,通过选择恰当的控制参数。展开更多
文摘In This paper some problems, which should be noticed in the measurements of organicmolecular first hyperpolarizability（β） by the solvatochromism , are discussed based on the resultsof the measurements for 11 compounds .The experiments indicate theat the selection of solvent used is the basis of the method to fit for use. The determination of the parameter a, which is the radius of a spherical cavity occupied by the molecules in the solutions, is the key to decide’the reasonableness of the obtained results and the formula for a=1/2(l’+rv),has been suggestedin which l is the molecular length of the nonlinear optical active part and can be obtained fromvalues of bond lengths in literature, rv is the average spherical radius of used solvents.
基金supported by the National Natural Scinece Foundation of China(10874010,10821062,and 10434020)the National Basic Research Program of China(2007CB307001)
文摘In the twentieth century,revolutionary changes took place in the human society and people's life-style due to the improvement of the optoelectronic information technology based on the second-order nonlinear optical effects,such as the electro-optic effect,the second harmonic generation(SHG),and so on.Along with the rapid development of light information technology,new principles and methods of nonlinear optics are needed,and the third-order nonlinear optical effects attract great attention.The research progress of nonlinear optics is reviewed in this article.Our research work on the third-order nonlinear optical materials,ultrafast and low-power organic all-optical photonic crystal switching are introduced.
文摘O437 2005042695 状态反馈控制声光双稳系统的倍周期分岔和混沌=Con- trol of period-doubling bifurcation and chaos in acousto-op- tical bistable system by the feedback of states[刊,中]／吕翎(辽宁师范大学物理系,辽宁,大连(116029)),杜增…／／光子学报,-2004,33(11),-1401-1404 设计了一种动力学状态反馈(DSF)方法控制非线性混沌系统。介绍了DSF方法的控制原理,并用此方法控制声光双稳(AOB)系统的混沌,以此验证其有效性。仿真模拟显示,通过选择恰当的控制参数。
