Lock J A
Opt Lett. 1999 Apr 1;24(7):427-9. doi: 10.1364/ol.24.000427.
When a laser beam scatters from a microparticle whose shape deviates from that of a sphere, a number of partial waves of the incident beam couple to a given partial wave of the scattered and interior fields. As a result, partial-wave coupling caused by small surface irregularities of a liquid droplet provides the mechanism for exciting low-radial-order morphology-dependent resonances.
当激光束从形状偏离球体的微粒散射时,入射光束的多个分波会与散射场和内部场的给定分波耦合。因此,液滴表面微小不规则性引起的分波耦合为激发低径向阶形态相关共振提供了机制。