Three-dimensional subwavelength optical imaging using the coupled dipole method

We simulate a three-dimensional optical diffraction tomography experiment in which the scattered field from an unknown object is measured for various observation and incident angles. We propose a fast inversion scheme based on the coupled dipole method that enables us to reconstruct the three-dimensional map of permittivity of the object from the far-field data. We show that a power of resolution of λ∕4 can be expected and that the method is robust to noise.