EXTINCTION SUM-RULE AND OPTICAL MOMENT FOR AN ELLIPSOIDAL PARTICLE OF ARBITRARY SIZE

[摘要] The frequency dependent extinction cross section of an ellipsoidal particle of arbitrary size is examined from the perspective of sum rules and optical moments. An extinction strength sum rule is found which directly relates the effective number of electrons in the scatterer to the integral over the extinction cross section spectrum, independent of particle shape. In addition, the characteristic frequency for the extinction cross section spectrum is found to be independent of particle size.

[发布日期] 1994-06-15