title: Three-dimensional nanostructuring in YIG ferrite with femtosecond laser.
abstract: With the goal of creating magneto-optical devices, we demonstrated forming nanostructures inside a substrate of cerium-substituted yttrium iron garnet (Ce:YIG) by means of direct laser writing. Laser irradiation changed both the optical and magnetic properties of Ce:YIG. The measurements showed that the refractive index was increased by 0.015 (about 0.7% change) and the magnetization property was changed from hard to soft to decrease the coercivity. This technology enables the formation of 3-dimensional optical and magnetic nanostructures in YIG and will contribute to the development of novel devices for optical communication and photonic integration.
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Amemiya
authors.forename: Atsushi
authors.initials: A
authors.lastname: Ishikawa
authors.forename: Yuya
authors.initials: Y
authors.lastname: Shoji
authors.forename: Pham Nam
authors.initials: PN
authors.lastname: Hai
authors.forename: Masaaki
authors.initials: M
authors.lastname: Tanaka
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Mizumoto
authors.forename: Takuo
authors.initials: T
authors.lastname: Tanaka
authors.forename: Shigehisa
authors.initials: S
authors.lastname: Arai