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首页> 外文期刊>journal of applied polymer science >Laser‐irradiation effect on poly(vinyl alcohol) films doped with nanometer‐sized CdS particles: Ablation and third‐harmonic generation
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Laser‐irradiation effect on poly(vinyl alcohol) films doped with nanometer‐sized CdS particles: Ablation and third‐harmonic generation

机译：Laser‐irradiation effect on poly(vinyl alcohol) films doped with nanometer‐sized CdS particles: Ablation and third‐harmonic generation

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AbstractUltrasmall CdS particles, whose average size was controlled by thiols to range from 2 to 4 nm, were embedded in poly(vinyl alcohol) films. Shift of the fluorescence peak associates with the shift of the absorption threshold of the films, and the fluorescence intensity increases with the decrease in the size of CdS. Laser ablation at 308 nm was investigated by monitoring the emission spectra. Third‐harmonic generation was measured for various sizes of CdS particles, and the optical nonlinearity in the nonresonance region was found to remain almost constant in the diameter range studied. © 1993 John WileySons, I

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