Dennis Gabor invented holography in 1948 when he tried to improve image resolution in electron microscope. The first attempts to perform holography with electron waves were made by Haine and Mulvey in 1952; they recorded holograms of zinc oxide crystals with 60 keV electrons, demonstrating reconstructions with approximately 1 nm resolution. In 1955, G. Möllenstedt and H. Düker invented an electron biprism, thus enabling the recording of electron holograms in off-axis scheme.
Dennis Gabor developed holography in 1948 as a means to improve image sharpness in electron microscopes. Initially, Haine and Mulvey attempted holography with electrons in 1952; they successfully recorded holograms of zinc oxide crystals using 60 keV electrons, achieving resolutions around 1 nm. Two years later, Möllenstedt and Düker created an electron biprism, enabling the recording of electron holograms using an off-axis method.