Author:
Furusawa Kentaro,Hayasaka Kazuhiro,Watanabe Issei,Sekine Norihiko,Tanaka Utako
Abstract
We report fabrication and characterization of grating couplers designed for 40Ca+ based planar surface traps. The wavelengths include 866, 854 and 729 nm and focusing at 100 um from the surface is demonstrated.