中文摘要：

在低温条件下用Au离子辐照法实现了聚苯乙烯（PS）微球的各向异性形变。PS微球在离子辐照下呈现出不同于SiO2微球的形变特点。照后PS微球整体收缩，在平行于离子入射方向上收缩尤甚，使照后PS微球呈长轴垂直与离子入射方向的椭球。采用加掩膜辐照法，在同一晶体上特定区域实现微球的形变。此工作为重离子辐照在光子晶体中引入可控缺陷奠定了基础。

英文摘要：

Bombarded by MeV Au ions at LN temperature, spherical polystyrene （PS） particles were changed into ellipsoids. The anisotropic deformation of PS particles differs from SiO2 particles. After irradiation, a PS particle shrinks apparently. The diameter in the direction of beam incidence decreased more severely than in the direction vertical to beam incidence, leading to ellipsoidal shape of the irradiated particles. By covering the PS photonic crystal with a copper mask, deformed PS particles can be made in specific areas of the photonic crystal. This work could be of help for future investigation of introducing controllable defect in photonic crystal.