title: Speckle-free digital holographic recording of a diffusely reflecting object.
abstract: We demonstrate holographic recording without speckle noise using the digital holographic technique called optical scanning holography (OSH). First, we record a complex hologram of a diffusely reflecting (DR) object using OSH. The incoherent mode of OSH makes it possible to record the complex hologram without speckle noise. Second, we convert the complex hologram to an off-axis real hologram digitally and finally we reconstruct the real hologram using an amplitude-only spatial light modulator (SLM) without twin-image noise and speckle noise. To the best of our knowledge, this is the first time demonstrating digital holographic recording of a DR object without speckle noise.
authors.affiliation: Department of Optical Engineering, Sejong University, 98 Kunja-dong, Kwangjin-gu, Seoul 143-747, South Korea.
authors.forename: You Seok
authors.initials: YS
authors.lastname: Kim
authors.forename: Taegeun
authors.initials: T
authors.lastname: Kim
authors.forename: Sung Soo
authors.initials: SS
authors.lastname: Woo
authors.forename: Hoonjong
authors.initials: H
authors.lastname: Kang
authors.forename: Ting-Chung
authors.initials: TC
authors.lastname: Poon
authors.forename: Changhe
authors.initials: C
authors.lastname: Zhou
mesh_terms: D016248:Computer Storage Devices; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation*; D016247:Information Storage and Retrieval / Q000379:methods*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*