Abstract
A modification of the method of digital holographic interferometry for the determination of deformations of an object with a diffuse surface by comparing two complex wavefronts reflected from the object at its two different states is considered. The difference of the proposed method with classical digital holography methods is that digital holograms by which the images are reconstructed have complex values determined by the phase shift method (‘‘complex’’ hologram), while classical digital holograms have only real values. Besides, digital holograms are reconstructed with allowance for inhomogeneity of the reference beam, which improves the reconstruction quality. For this purpose, a tunable neutral optical filter is introduced into the reference arm of the optical scheme of the interferometer. The method is verified experimentally.
Similar content being viewed by others
REFERENCES
A. G. Kozachok, Holographic Methods of Investigation in Experimental Mechanics (Mashinostroenie, Moscow, 1984).
A. E. Ennos, ‘‘Measurement of in-plane surface strain by hologram interferomefry,’’ Sci. Instrum. Ser. II. 58, 731–734 (1968). https://doi.org/10.1088/0022-3735/1/7/307
J. E. Sollid, ‘‘Holographic interferometry applied to measurements of small static displacements of diffusely reflecting surfaces,’’ Appl. Opt. 8, 1587–1595 (1969). https://doi.org/10.1364/AO.8.001587
J. W. Goodman and R. W. Lawrence, ‘‘Digital image formation from electronically detected holograms,’’ Appl. Phys. Lett. 11, 77–79 (1967). https://doi.org/10.1063/1.1755043
U. Schnars and W. Jüptner, ‘‘Direct recording of holograms by a CCD-target and numerical reconstruction,’’ Appl. Opt. 33, 179–181 (1994). https://doi.org/10.1364/AO.33.000179
E. B. Aleksandrou and A. M. Bonch-Bruevich, ‘‘Investigations of surface strains by the hologram technique,’’ Sov. Phys. Tech. Phys. 12, 258–265 (1967).
Yu. I. Ostrovskii, M. M. Butusov, and G. V. Ostrovskaya, Holographic Interferometry (Nauka, Moscow, 1977).
V. I. Guzhov, S. P. Il’inykh, G. A. Pozdnyakov, and D. S. Khaidukov, ‘‘Image reconstruction from digital holograms obtained by specifying random phase shifts,’’ Optoelectron., Instrum. Data Process. 55, 638–646 (2019). https://doi.org/10.3103/S8756699019060165
V. I. Guzhov, S. P. Il’inykh, D. S. Khaidukov, and A. R. Vagizov, ‘‘Universal algorithm of the decryption,’’ Sci. Bull. NSTU 41 (4), 51–58 (2010).
V. I. Guzhov and S. P. Il’inykh, ‘‘Determination of the intensity of the reference and object beams when using the phase-shift interferometry,’’ Autom. Software Eng. 22 (4), 68–73 (2017).
V. I. Guzhov, S. P. Il’inykh, and S. V. Khaibullin, ‘‘Phase information recovery based on the methods of phase shifting interferometry with small angles between interfering beams,’’ Optoelectron., Instrum. Data Process. 53, 288–293 (2017). https://doi.org/10.3103/S875669901703013X
V. I. Guzhov, I. O. Marchenko, and G. A. Pozdnyakov, RF Certificate on Software State Registration no. 2019663147 (October 10, 2019).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by A. Nikol’skii
About this article
Cite this article
Guzhov, V.I., Denezhkin, E.N., Il’inykh, S.P. et al. Determination of Deformation Fields of Diffuse Objects by Phase-Shifting Digital Holographic Interferometry. Optoelectron.Instrument.Proc. 56, 608–613 (2020). https://doi.org/10.3103/S8756699020060084
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3103/S8756699020060084