Open AccessAchromatic phase shifting self-interference incoherent digital holography using linear polarizer and geometric phase lens
Author(s) -
Ki-Hong Choi,
Junkyu Yim,
Sung−Wook Min
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.016212
Subject(s) - achromatic lens , optics , polarizer , holography , digital holography , lens (geology) , fresnel lens , phase (matter) , interferometry , physics , interference (communication) , geometric phase , polarization (electrochemistry) , optical path , birefringence , computer science , telecommunications , channel (broadcasting) , chemistry , quantum mechanics
A simple Fresnel-type self-interference incoherent digital holographic recording system is proposed. The main part of the system consists of the two linear polarizers and geometric phase lens. The geometric phase lens is employed as a polarization selective common-path interferometer. One of the polarizers is rotated by the motor and serves as a phase-shifter with the geometric phase lens, to eliminate the bias and twin image noise. A topological phase is obtained by the relative angle between the polarizer and geometric phase lens. Since this phase shifting method does not depend on the change of the optical path length, the phase shifting performance is almost constant in the broad spectral range. Using the proposed achromatic phase shifting method, a simultaneous three-color phase shifting digital hologram recording under the incoherent light source is demonstrated.