title: Realization of a uniform circular source using a two-dimensional binary filter.
abstract: A uniform-intensity circular light source has been realized from a Gaussian laser beam by using an area-modulated binary filter. The technique preserves the wave front, and as a result the uniform circular source can be located at a plane perpendicular to the axis of propagation over a wide area.
authors.forename: M A
authors.initials: MA
authors.lastname: Karim
authors.forename: A M
authors.initials: AM
authors.lastname: Hanafi
authors.forename: F
authors.initials: F
authors.lastname: Hussain
authors.forename: S
authors.initials: S
authors.lastname: Mustafa
authors.forename: Z
authors.initials: Z
authors.lastname: Samberid
authors.forename: N M
authors.initials: NM
authors.lastname: Zain