Gradient-index planar optics for optical interconnections Song, Seok Ho ; Park, Suntak ; Oh, Cha Hwan ; Kim, Pill Soo ; Cho, Mu Hee ; Kim, Yeong Sik Abstract Publication: Optics Letters Pub Date: July 1998 DOI: 10.1364/OL.23.001025 Bibcode: 1998OptL...23.1025S