C_(60)-benzene solutions are used as a new type of nonlinear Medium for observing cw self-focusing of laser beams.Self-phase modulation of much low power laser beam has been observed.The response time of C_(60)-benzen...C_(60)-benzene solutions are used as a new type of nonlinear Medium for observing cw self-focusing of laser beams.Self-phase modulation of much low power laser beam has been observed.The response time of C_(60)-benzene solution has been measured.展开更多
We report the experimental observation of electric field induced Gso redistribution,in benzene solution by thermal blooming change of transmitted light.The pol&riz&tion of C_(60) molecules in external field is...We report the experimental observation of electric field induced Gso redistribution,in benzene solution by thermal blooming change of transmitted light.The pol&riz&tion of C_(60) molecules in external field is analyzed.展开更多
We present nieasureinents of two-pho ton absorption(TPA)coefficient of C_(60) thin Hhn at 633nm.Large values of β〜5cm/W were determined.Nearly~resona.nt TPA transition around 3.76eV absorption region was discussed.
We present our theoretical study to identify two new amplified spontaneous emissions(241.3 and 268.7nm)in the NF and FO molecules.We also present our theoretical calculations for electronic structures of molecular Ryd...We present our theoretical study to identify two new amplified spontaneous emissions(241.3 and 268.7nm)in the NF and FO molecules.We also present our theoretical calculations for electronic structures of molecular Rydberg excited states for the NF and FO molecules.展开更多
The retroreflection characteristics of metai surfaces sprayed with different mixture of S13N4 powder and plastic powder were evaluated by an automatic system developed at our laboratory,which normally used to measure ...The retroreflection characteristics of metai surfaces sprayed with different mixture of S13N4 powder and plastic powder were evaluated by an automatic system developed at our laboratory,which normally used to measure the absolute retroreflectance of various surfaces without any reference standard.The preliminary results obtained seem to indicate that the characterization of the retroreflection distribution can be controlled as needed by selecting the sample surface material and/or its mixture.This property may be used in analysis of target signatures.展开更多
Timefluorescence decays were first performed on hematoporphyrin derivative laser No.3 in buffer at different micelles concentration.The flu.orescence lifetime constants,measured with a time-correlated single photon co...Timefluorescence decays were first performed on hematoporphyrin derivative laser No.3 in buffer at different micelles concentration.The flu.orescence lifetime constants,measured with a time-correlated single photon counting system;could be fitted by two or three exponential components with different relative peak amplitudes depending on the observation wavelength^thus indicating the presence of different emitting molecular species and/or of molecular species in different aggregational states.展开更多
基金Supported by the National Natural Science Foundation of China.
文摘C_(60)-benzene solutions are used as a new type of nonlinear Medium for observing cw self-focusing of laser beams.Self-phase modulation of much low power laser beam has been observed.The response time of C_(60)-benzene solution has been measured.
基金Supported by the National Natural Science Foundation of China.
文摘We report the experimental observation of electric field induced Gso redistribution,in benzene solution by thermal blooming change of transmitted light.The pol&riz&tion of C_(60) molecules in external field is analyzed.
基金Supported by the National Natural Science Foundation of China。
文摘We present nieasureinents of two-pho ton absorption(TPA)coefficient of C_(60) thin Hhn at 633nm.Large values of β〜5cm/W were determined.Nearly~resona.nt TPA transition around 3.76eV absorption region was discussed.
基金Supported in part by the National Natural Science Foundation of China,Academia Sinica and Chinese Research Association for Atomic and Molecular Data.
文摘We present our theoretical study to identify two new amplified spontaneous emissions(241.3 and 268.7nm)in the NF and FO molecules.We also present our theoretical calculations for electronic structures of molecular Rydberg excited states for the NF and FO molecules.
文摘The retroreflection characteristics of metai surfaces sprayed with different mixture of S13N4 powder and plastic powder were evaluated by an automatic system developed at our laboratory,which normally used to measure the absolute retroreflectance of various surfaces without any reference standard.The preliminary results obtained seem to indicate that the characterization of the retroreflection distribution can be controlled as needed by selecting the sample surface material and/or its mixture.This property may be used in analysis of target signatures.
文摘Timefluorescence decays were first performed on hematoporphyrin derivative laser No.3 in buffer at different micelles concentration.The flu.orescence lifetime constants,measured with a time-correlated single photon counting system;could be fitted by two or three exponential components with different relative peak amplitudes depending on the observation wavelength^thus indicating the presence of different emitting molecular species and/or of molecular species in different aggregational states.
