A binary computer generated hologram method for atom hologram lithography

Atom hologram lithography employs binary computer generated hologram to handle atoms for making microstructure. The conventional binary hologram is inconvenient because it often has more than one reconstructed images. A new method of amplitude-only encoding is investigated. A hologram is formed by adding together a series of elementary functions, and then it is encoded with Lohmann Ⅲ like encoding to obtain a binary computer generated hologram. A simulation result shows that the mask made with the new method could produce a unique microstructure according to the original pattern.