LAUSR

The three-dimensional holography technique offers an efficient and convenient tool for storing depth information of the object and provides more realistic images compared to the two-dimensional case, which has been widely used in the fields of optical tweezers, image encryption, and optical microscopy. However, such a three-dimensional nonlinear holography technique is still lacking in the field of nonlinear optics. Here, we demonstrate the realization of three-dimensional nonlinear optical holograms. Without loss of generality, a second-order nonlinearity is used in our experiment and the generated second harmonic with multiplane patterns at different depths is dynamically realized. This study opens up the field of three-dimensional spatial nonlinear harmonic manipulation and may have applications in all-optical wave-band three-dimensional optical imaging, parallel micromachining, holographic displays, and so on.