Abstract
Grating lenses for optical branching were designed by introducing a phase-modulation function. The lenses have the dual functions of focusing and branching. The phase-modulation function was optimized to balance the optical intensity values for the required branchings and to suppress those for undesirable branchings. Phase-modulated grating lenses, with three and five branchings, were fabricated by using a computer and an electron-beam exposure system. The focusing and branching characteristics obtained by these lenses show excellent agreement with the theoretically predicted profiles.
© 1993 Optical Society of America
Full Article | PDF ArticleMore Like This
Gen-ichi Hatakoshi, Harumi Fujima, and Kenya Goto
Appl. Opt. 23(11) 1749-1753 (1984)
Gen-ichi Hatakoshi and Kenya Goto
Appl. Opt. 24(24) 4307-4311 (1985)
Shun-ichi Tanaka, Gen-ichi Hatakoshi, Hirokatsu Yashiro, and Shinsuke Umegaki
Appl. Opt. 23(11) 1754-1759 (1984)