A new technique of photoacoustic spectroscopy measurements of the absolute fluorescence quantum yields has been investigated and used in laser dye solutions.The fluorescence quenchers is used in the experiment.Five ho...A new technique of photoacoustic spectroscopy measurements of the absolute fluorescence quantum yields has been investigated and used in laser dye solutions.The fluorescence quenchers is used in the experiment.Five home-made dyes,Rhodamine 6G,Disodium Fluorescein,Eosin Y,Cuomarin 1 and Quinine Bisulphate,have been measured.The results are in excellent agreement with those reported.展开更多
The anomalous phonon properties in YBa_(2)Cu_(3)O_(7)-δ superconductor quenched from different temperatures were obtained by means of IR refiection spectroscopy.The analyses of the data suggest that polarons exist in...The anomalous phonon properties in YBa_(2)Cu_(3)O_(7)-δ superconductor quenched from different temperatures were obtained by means of IR refiection spectroscopy.The analyses of the data suggest that polarons exist in the system,and this may provide a cruicial clue to the mechanism study.展开更多
文摘A new technique of photoacoustic spectroscopy measurements of the absolute fluorescence quantum yields has been investigated and used in laser dye solutions.The fluorescence quenchers is used in the experiment.Five home-made dyes,Rhodamine 6G,Disodium Fluorescein,Eosin Y,Cuomarin 1 and Quinine Bisulphate,have been measured.The results are in excellent agreement with those reported.
基金This work was supported by the National Science Foundation of China.
文摘The anomalous phonon properties in YBa_(2)Cu_(3)O_(7)-δ superconductor quenched from different temperatures were obtained by means of IR refiection spectroscopy.The analyses of the data suggest that polarons exist in the system,and this may provide a cruicial clue to the mechanism study.
