title: Sum-frequency mixing of radiation from two extended-cavity laser diodes using a doubly resonant external cavity for laser cooling of trapped ytterbium ions.
authors.affiliation: Graduate School of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo, Kyoto 615-8510, Japan. sugiyama@kuee.kyoto‑u.ac.jp
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Sugiyama
authors.forename: Sho
authors.initials: S
authors.lastname: Kawajiri
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Yabu
authors.forename: Kanehiro
authors.initials: K
authors.lastname: Matsumoto
authors.forename: Masao
authors.initials: M
authors.lastname: Kitano