[OPTICAL REVIEW Vol. 17, No. 3 (2010) 176-180]
© 2010 The Japan Society of Applied Physics
Dynamic Recording of a Digital Hologram with Single Exposure by a Wave-Splitting Phase-Shifting Method
Hiroyuki SUZUKI, Takanori NOMURA1, Eiji NITANAI1, and Takuhisa NUMATA1
Graduate School of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan
1Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan
(Received September 1, 2009; Accepted January 7, 2010)
The wave-splitting phase-shifting digital holography using a pixelated microretarder array is proposed. By using four intensity images recorded by the pixelated microretarder array, Stokes parameters of the incident wave can be calculated. The fully complex amplitude distribution of the object wave can be obtained by using Stokes parameters, if the polarization states of the object and reference waves are linear and orthogonal. Two sets of experimental results are provided to verify the feasibility of the proposed method. One is the result for a movie recording using a CW laser and the other is the result for instant recording using a single pulsed laser.
Key words: digital holography, polarization, single exposure, wave-splitting phase-shifting, microretarder array