刊名:Colloids and Surfaces A: Physicochemical and Engineering Aspects
出版年:2013
出版时间:5 August, 2013
年:2013
卷:430
期:Complete
页码:51-57
全文大小:907 K
文摘
We present a physical model that describes the acoustic pressure pulses from diluted suspensions of metal nanospheres in a liquid medium irradiated by laser pulses. The experimental measurements of the photoacoustic signals are also reported, where the suspensions of 8-nm gold nanospheres in water at different concentrations and different temperatures were irradiated by 0.8-ns laser pulses. We mainly investigate how the nanosphere concentration and the suspension temperature influence the photoacoustic responses. The estimations from our model are found to be in good agreement with the results from the experiments.