Plamonic anisotropic particles show great potentials in nano-photonic and bio-sensing applications due to their strong enhancement in the surface electrical field and near-infrared spectram. However, their optimal properties are excited only when the incident polarization is in a good match with the structure, which limits the excitation efficiency. In this work ,we propose a compensation method in which the missing property in NIR band is added by introducing plasmonic coupling in the heterodimer. The recovered property is polarization free to the incident electric field. The method is theoretically proved by exploring the plasmonic interaction mechanism in the heterodimer. The theoretical work is carried out by numerically solving the Maxwell functions in the case when light interacts with complicated 3D structures of heterodimer based on finite elecment. With compensation, the capped based heterodimer shows stable high absorption in NIR band at random position. Such properties are desirable in the field such as sensing, imaging, drug releasing and photothermal therapy.