Simulation on the single point resolution of 2.52 THz on-axis digital holography

Because of the particularity of terahertz radiation, terahertz digital holographic imaging has attracted increasing attention. Thereinto, the resolution is the key to this field. Within an inverse problem framework, the simulation on the single point resolution of 2.52 THz on-axis digital hologram at different recording distances and object positions is made in this paper. Simulation results show that the recording distance and the object position have a great influence on the single point resolution. Simulation results have important directive significance to the practical terahertz digital holographic imaging.