title: Advanced split-illumination electron holography without Fresnel fringes.
abstract: Advanced split-illumination electron holography was developed by employing two biprisms in the illuminating system to split an electron wave into two coherent waves and two biprisms in the imaging system to overlap them. A focused image of an upper condenser-biprism filament was formed on the sample plane, and all other filaments were placed in its shadow. This developed system makes it possible to obtain precise reconstructed object waves without modulations due to Fresnel fringes, in addition to holograms of distant objects from reference waves.
authors.affiliation: Center for Emergent Matter Science (CEMS), RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan. Electronic address: tanigaki-toshiaki@riken.jp.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Tanigaki
authors.affiliation: Center for Emergent Matter Science (CEMS), RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
authors.forename: Shinji
authors.initials: S
authors.lastname: Aizawa
authors.affiliation: Center for Emergent Matter Science (CEMS), RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
authors.forename: Hyun Soon
authors.initials: HS
authors.lastname: Park
authors.affiliation: Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Matsuda
authors.affiliation: Central Research Laboratory, Hitachi, Ltd., Hatoyama, Saitama 350-0395, Japan.
authors.forename: Ken
authors.initials: K
authors.lastname: Harada
authors.affiliation: Center for Emergent Matter Science (CEMS), RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Sendai 980-8577, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Shindo
keywords: Double biprism; Electron holography; Fresnel fringes; Split illumination