title: Room-temperature grating-based morphological hole burning in Sm2+-doped glass powders.
abstract: We have observed grating-based morphological hole burning in Sm2+-doped glass powders at room temperature. When photobleaching on the 4f(6)-4f(5)5d transition of Sm2+ is combined with multiple light scattering, holes are produced in frequency and wave-vector domains. The hole profile depends on the amount of light absorption of Sm2+; it sharpens as the absorption decreases. The variation of the hole shape is explained theoretically based on a diffusion approximation.
authors.affiliation: Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan. koji@collon1.kuic.kyoto-u.ac.jp
authors.forename: Koji
authors.initials: K
authors.lastname: Fujita
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Ohashi
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Hirao