Systems and methods for direct-to-digital holography are described. An apparatus includes a laser; a beamsplitter optically coupled to the laser; a reference beam mirror optically coupled to the beamsplitter; an object optically coupled to the beamsplitter, a focusing lens optically coupled to both the...http://www.google.com/patents/US5892231?utm_source=gb-gplus-sharePatent US5892231 - Virtual mask digital electron beam lithography
