A spatial modulation method for electronic speckle patterns is presented.Carrier fringes are produced by object tilting and the phase field of deformation is demodulated by Fourier transform.The principle is discussed...A spatial modulation method for electronic speckle patterns is presented.Carrier fringes are produced by object tilting and the phase field of deformation is demodulated by Fourier transform.The principle is discussed.The system and some typical experimental results are offered.The results prove that by using object tilting method speckle patterns can be modulated very well and the out-of displacement of an object can be obtained effectively.展开更多
TN242 2002010232高斯和超高斯型随机相位调制的光腔模式=Mode ofresonators with Gaussian and super-Gaussian ran-dom phase modulation[刊,中]/王立刚,江晓清,林强(浙江大学物理系光学研究所.浙江,杭州(310028))∥光电子·激光....TN242 2002010232高斯和超高斯型随机相位调制的光腔模式=Mode ofresonators with Gaussian and super-Gaussian ran-dom phase modulation[刊,中]/王立刚,江晓清,林强(浙江大学物理系光学研究所.浙江,杭州(310028))∥光电子·激光.—2001,12(2).展开更多
O434.11 99042119同步辐射的相干模式=Coherence mode of synchrotronradiation[刊,中]/唐鄂生,朱佩平,崔明启(中科院北京高能物理研究所.北京(100039))∥光学学报.—1998,18(12).—1640-1645在分析了光源相干相体积的基础上,重点研讨...O434.11 99042119同步辐射的相干模式=Coherence mode of synchrotronradiation[刊,中]/唐鄂生,朱佩平,崔明启(中科院北京高能物理研究所.北京(100039))∥光学学报.—1998,18(12).—1640-1645在分析了光源相干相体积的基础上,重点研讨了第三代同步辐射中波荡器辐射的相干模式,能谱亮度,相干光子通量等。这对提高光束相干能量的传输效率和软X光相干光学束线的设计具有重要意义.图3表2参4(严寒)展开更多
TN242 2001042450带有随机相位反射镜的光腔模式=Modes of resonatorswith random phase mirrors[刊,中]/周国泉(浙江林学院信息与基础科学系.浙江,临安(311300)),林强,江晓清、王绍民(浙江大学物理系.浙江,杭州(310028))//光电子·...TN242 2001042450带有随机相位反射镜的光腔模式=Modes of resonatorswith random phase mirrors[刊,中]/周国泉(浙江林学院信息与基础科学系.浙江,临安(311300)),林强,江晓清、王绍民(浙江大学物理系.浙江,杭州(310028))//光电子·激光.-2000,11(1).-39-41运用沃尔夫的相干模式理论对带有随机相位反射镜的二维平行平面光学谐振腔的模式作了数值模拟。结果表明带有随机相位反射镜的光腔较普通的同类光腔模式有较大改善:以带有随机相位的反射镜为输出镜,可以得到-空间光滑的光束;否则,输出-类平顶光束。展开更多
A new definition of the alternative coherent-mode representation of a random planar source with the a priori unknown statistical properties is proposed. This definition is based on the measurements of the source cross...A new definition of the alternative coherent-mode representation of a random planar source with the a priori unknown statistical properties is proposed. This definition is based on the measurements of the source cross-spectral density followed by the optimal approximation of the obtained results in the chosen basis of modal functions. The proposed definition is illustrated by the results of numerical simulation.展开更多
We propose a scheme for generation of SU（2） coherent states for an atomic ensemble and a cavity mode. In the scheme a collection of two-level atoms resonantly interact with a single-mode quantized field. Under certa...We propose a scheme for generation of SU（2） coherent states for an atomic ensemble and a cavity mode. In the scheme a collection of two-level atoms resonantly interact with a single-mode quantized field. Under certain conditions, the system can evolve from a Fock state to a highly entangled SU（2） coherent state. The operation speed increases as the number of atoms increases, which is important in view of deeoherence.展开更多
文摘A spatial modulation method for electronic speckle patterns is presented.Carrier fringes are produced by object tilting and the phase field of deformation is demodulated by Fourier transform.The principle is discussed.The system and some typical experimental results are offered.The results prove that by using object tilting method speckle patterns can be modulated very well and the out-of displacement of an object can be obtained effectively.
文摘TN242 2002010232高斯和超高斯型随机相位调制的光腔模式=Mode ofresonators with Gaussian and super-Gaussian ran-dom phase modulation[刊,中]/王立刚,江晓清,林强(浙江大学物理系光学研究所.浙江,杭州(310028))∥光电子·激光.—2001,12(2).
文摘O434.11 99042119同步辐射的相干模式=Coherence mode of synchrotronradiation[刊,中]/唐鄂生,朱佩平,崔明启(中科院北京高能物理研究所.北京(100039))∥光学学报.—1998,18(12).—1640-1645在分析了光源相干相体积的基础上,重点研讨了第三代同步辐射中波荡器辐射的相干模式,能谱亮度,相干光子通量等。这对提高光束相干能量的传输效率和软X光相干光学束线的设计具有重要意义.图3表2参4(严寒)
文摘TN242 2001042450带有随机相位反射镜的光腔模式=Modes of resonatorswith random phase mirrors[刊,中]/周国泉(浙江林学院信息与基础科学系.浙江,临安(311300)),林强,江晓清、王绍民(浙江大学物理系.浙江,杭州(310028))//光电子·激光.-2000,11(1).-39-41运用沃尔夫的相干模式理论对带有随机相位反射镜的二维平行平面光学谐振腔的模式作了数值模拟。结果表明带有随机相位反射镜的光腔较普通的同类光腔模式有较大改善:以带有随机相位的反射镜为输出镜,可以得到-空间光滑的光束;否则,输出-类平顶光束。
文摘A new definition of the alternative coherent-mode representation of a random planar source with the a priori unknown statistical properties is proposed. This definition is based on the measurements of the source cross-spectral density followed by the optimal approximation of the obtained results in the chosen basis of modal functions. The proposed definition is illustrated by the results of numerical simulation.
基金supported by the National Natural Science Foundation of China under Grant No.10674025the Doctoral Foundation of the Ministry of Education of China under Grant No.20070386002
文摘We propose a scheme for generation of SU（2） coherent states for an atomic ensemble and a cavity mode. In the scheme a collection of two-level atoms resonantly interact with a single-mode quantized field. Under certain conditions, the system can evolve from a Fock state to a highly entangled SU（2） coherent state. The operation speed increases as the number of atoms increases, which is important in view of deeoherence.
