title: Implementing the generalized phase-contrast method in a planar-integrated micro-optics platform.
abstract: We demonstrate the feasibility of implementing the generalized phase-contrast (GPC) method in a planar-integrated micro-optics platform. An entire 4-f diffractive lens system with a Fourier plane phase-only filter has been designed and manufactured in a 50-mm-diameter fused-silica substrate by use of a four-level multimask lithography. Experimental results show successful conversion of an input phase distribution into a high-contrast intensity distribution. The diffraction efficiency of the optical components is found to limit the operating range of the GPC system.
authors.forename: Vincent
authors.initials: V
authors.lastname: Daria
authors.forename: Jesper
authors.initials: J
authors.lastname: Glückstad
authors.forename: Paul C
authors.initials: PC
authors.lastname: Mogensen
authors.forename: René L
authors.initials: RL
authors.lastname: Eriksen
authors.forename: Stefan
authors.initials: S
authors.lastname: Sinzinger