Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USA.
J Acoust Soc Am. 2012 Apr;131(4):EL329-35. doi: 10.1121/1.3693387.
The axial radiation force exerted by a general non-diffracting beam on an object of arbitrary shape in lossless medium is analyzed. The object may be on or off the beam's axis. The analysis is based on the plane-wave representation of the beam using an azimuthal function and conical angle. The analytical expression relates the force to axial projections of the extracted and scattered momentum. Using an extended optical theorem, the extinction is related to the scattering at the forward direction of the beam's plane wave components. The axial force is expressed using the scattering amplitude and known angular functions.
分析了非弥散光束对无损耗介质中任意形状物体施加的轴向辐射力。物体可以在光束轴上或轴外。该分析基于使用方位角函数和圆锥角的光束平面波表示。解析表达式将力与提取和散射动量的轴向投影相关联。使用扩展的光学定理，消光与光束平面波分量正向的散射相关联。轴向力使用散射振幅和已知的角度函数表示。
