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Proceedings Paper

Polarization analysis of the object wave using FMCW-digital holography
Author(s): M. Yokota; T. Ishikawa; N. Aoki
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Paper Abstract

Frequency-Modulated Continuous-Wave (FMCW) technique has been introduced into digital holography (DH) using an injection-current-induced frequency modulation of a laser diode (LD) as a light source. Since the frequency of beat signals observed in the intensity variation of holograms captured by a high speed camera depends on the optical path length difference between the reference and the object light waves, the use of FMCW technique in DH can achieve selective reconstruction of an object located at a desired distance. As a preliminary consideration, both experimental and calculational studies were conducted for selective reconstruction of two objects at different positions. In addition, a polarization state of object wave transmitting through a PMMA sample was investigated using the technique in which the object wave interfered with two orthogonally linearly polarized reference waves having the different optical path lengths.

Paper Details

Date Published: 21 June 2019
PDF: 11 pages
Proc. SPIE 11056, Optical Measurement Systems for Industrial Inspection XI, 110563R (21 June 2019); doi: 10.1117/12.2525698
Show Author Affiliations
M. Yokota, Shimane Univ. (Japan)
T. Ishikawa, Shimane Univ. (Japan)
N. Aoki, Shimane Univ. (Japan)

Published in SPIE Proceedings Vol. 11056:
Optical Measurement Systems for Industrial Inspection XI
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves Jr., Editor(s)

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