Abstract

Recently, fields related to holography draw a lot of attention as holographic 3D displays are considered as an ultimate form of 3D displays. A complex spatial light modulator (CSLM) counts as a key device for holographic 3D displays. Although many people are already well aware of superior properties of the CSLM, the CSLM has not been realized in a small device level, but tested only in bulky structures over ten micro meters. Even if there were many attempts to minimize the scale of CSLMs, many researchers faced limit of the CSLMs’ scale over tens of micro meters. In recent research on a CSLM system realized by double-phase hologram macro-pixels, prism and diffraction gratings, its size range is 15-40 μm and its efficiency decreases considerably according to scale-down of the structure [1].

© 2015 IEEE