A method and apparatus for forming an optical device on a substrate. A surface of the substrate may be treated to form a treated surface having a number of modified properties. A plurality of drops of material may be deposited onto the treated surface of the substrate to form the optical device. An adhesion between the plurality of drops and the treated surface of the substrate may be reduced by the number of modified properties of the treated surface such that the plurality of drops form an optical device having a lateral resolution below a selected threshold.