title: Selectable-wavelength low-coherence digital holography with chromatic phase shifter.
abstract: We propose a new digital holography method using an ultra-broadband light source and a chromatic phase-shifter. The chromatic phase-shifter gives different frequency shifts for respective spectral frequencies so that the spectrum of the light reflected from the object can be measured to reveal the spectral property of the object, and arbitrary selection of signals in the temporal frequency domain enables single- and multi-wavelength measurements with wide dynamic range. A theoretical analysis, computer simulations, and optical experiments were performed to verify the advantages of the proposed method.
authors.affiliation: Center for Optical Research and Education (CORE), Utsunomiya University 7-1-2 Yoto, Utsunomiya 321-8585, Japan.
authors.forename: Quang Duc
authors.initials: QD
authors.lastname: Pham
authors.forename: Satoshi
authors.initials: S
authors.lastname: Hasegawa
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Kiire
authors.forename: Daisuke
authors.initials: D
authors.lastname: Barada
authors.forename: Toyohiko
authors.initials: T
authors.lastname: Yatagai
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Hayasaki
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation*; D008029:Lighting / Q000295:instrumentation*; D008962:Models, Theoretical; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*