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  • Origins of performance in fiber-based organic photovoltaics
    [作者:Li, Y; Zhou, W; Xue, D; Liu, JW; Peterson, ED; Nie, WY; Carroll, DL,期刊:Applied Physics Letters, 页码:203503-203503 , 文章类型: Article,,卷期:2009年95-20]
  • Using ray tracing and optical path iteration, we present a mathematical model for light transmission, absorption, and loss in fiber-based organic photovoltaics. Simulations based on this model give an optimum incident an...
  • Sound control by temperature gradients
    [作者:Sanchez-Dehesa, J; Angelov, MI; Cervera, F; Cai, LW,期刊:Applied Physics Letters, 页码:204102-204102 , 文章类型: Article,,卷期:2009年95-20]
  • This work reports experiments showing that airborne sound propagation can be controlled by temperature gradients. A system of two heated tubes is here used to demonstrate the collimation and focusing of an ultrasonic bea...