摘要： The plasmonic properties of gold nanosponges with nanotomographically reconstructed models are very interesting due to their high internal surface area and the possibility to build a model with the exact same structure as the real sample. In order to better understand the structure-property relationship, the optical properties of gold nanosponges were simulated with the exact same structure as the real sample. The results confirm that the nanosponges have a strong plasmonic effect, which is very similar to the plasmonic effect of gold nanoparticles. The specific internal surface area was computed from the 3D data and compared with the specific internal surface area of the real sample. The results show that the nanosponges have a specific internal surface area of about 20 m2/g, which matches well with the specific internal surface area of the real sample. The nanosponges also show a strong plasmonic effect in the near-infrared region, which is very interesting for applications in photothermal therapy and biosensing.