title: Resolution enhancement of holographic printer using a hogel overlapping method.
abstract: We propose a hogel overlapping method for the holographic printer to enhance the lateral resolution of holographic stereograms. The hogel size is directly related to the lateral resolution of the holographic stereogram. Our analysis by computer simulation shows that there is a limit to decreasing the hogel size while printing holographic stereograms. Instead of reducing the size of hogel, the lateral resolution of holographic stereograms can be enhanced by printing overlapped hogels, which makes it possible to take advantage of multiplexing property of the volume hologram. We built a holographic printer, and recorded two holographic stereograms using the conventional and proposed overlapping methods. The images and movies of the holographic stereograms experimentally captured were compared between the conventional and proposed methods. The experimental results confirm that the proposed hogel overlapping method improves the lateral resolution of holographic stereograms compared to the conventional holographic printing method.
authors.affiliation: School of Electrical Engineering, Seoul National University, Gwanak-Gu Gwanakro 1, Seoul, 151-744, Korea.
authors.forename: Keehoon
authors.initials: K
authors.lastname: Hong
authors.forename: Soon-gi
authors.initials: SG
authors.lastname: Park
authors.forename: Jiwoon
authors.initials: J
authors.lastname: Yeom
authors.forename: Jonghyun
authors.initials: J
authors.lastname: Kim
authors.forename: Ni
authors.initials: N
authors.lastname: Chen
authors.forename: Kyungsuk
authors.initials: K
authors.lastname: Pyun
authors.forename: Chilsung
authors.initials: C
authors.lastname: Choi
authors.forename: Sunil
authors.initials: S
authors.lastname: Kim
authors.forename: Jungkwuen
authors.initials: J
authors.lastname: An
authors.forename: Hong-Seok
authors.initials: HS
authors.lastname: Lee
authors.forename: U-in
authors.initials: UI
authors.lastname: Chung
authors.forename: Byoungho
authors.initials: B
authors.lastname: Lee
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation*; D007089:Image Enhancement / Q000295:instrumentation*; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D008027:Light; D008962:Models, Theoretical; D012542:Scattering, Radiation