Lock J A
Appl Opt. 1990 Jul 20;29(21):3180-7. doi: 10.1364/AO.29.003180.
We examine the interior electromagnetic energy density of a coated nonabsorbing sphere at a number of scattering resonances. As is the case for an uncoated sphere, the interior energy density becomes large at the a(p)(l) and b(p)(l) resonances. It becomes especially large for p - 1 values of the coating thickness at resonance. These p - 1 enhancements are analogous to the interference maxima that occur in the intensity reflectance of two thin films in contact.
我们研究了在多个散射共振频率下，涂覆的非吸收性球体内部的电磁能量密度。与未涂覆的球体情况一样，在a(p)(l)和b(p)(l)共振频率处，内部能量密度会变得很大。对于处于共振状态下的涂层厚度的p - 1值，能量密度会变得特别大。这些p - 1增强效应类似于相互接触的两个薄膜的强度反射率中出现的干涉极大值。
