title: Bragg holograms with binary synthetic surface-relief profile.
abstract: Synthetic pulse-position-modulated binary surface-relief elements with subwavelength transverse features are designed by using a combination of scalar and rigorous electromagnetic diffraction theories. Theoretically, both reflection- and transmission-type elements achieve nearly 100% diffraction efficiency at Bragg incidence. Using direct-write electron-beam lithography and reactive ion etching, we demonstrate a reflective binary Bragg-type multiple beam splitter for operation at lambda = 1.064 microm.
authors.forename: J
authors.initials: J
authors.lastname: Turunen
authors.forename: P
authors.initials: P
authors.lastname: Blair
authors.forename: J M
authors.initials: JM
authors.lastname: Miller
authors.forename: M R
authors.initials: MR
authors.lastname: Taghizadeh
authors.forename: E
authors.initials: E
authors.lastname: Noponen