Phase shifting speckle interferometry for dynamic phenomena.

The paper presents an algorithm able to retrieve the phase in speckle interferometry by a single intensity pattern acquired in a deformed state, provided that the integrated speckle field is resolved in the reference condition in terms of mean intensity, modulation amplitude and phase. The proposed approach, called throughout the paper "one-step", can be applied for studying phenomena whose rapid evolution does not allow the application of a standard phase-shifting procedure, which, on the other hand, must be applied at the beginning of the experiment. The approach was proved by an experimental test reported at the end of the paper.

[1]  Steve Rothberg,et al.  Small amplitude estimation of mechanical vibrations using electronic speckle shearing pattern interferometry , 2004 .

[2]  M Adachi,et al.  Deformation-phase measurement of diffuse objects that have started nonrepeatable dynamic deformation. , 2001, Applied optics.

[3]  L. Bruno,et al.  Phase Retrieval in Speckle Interferometry: a One-Step Approach , 2000 .

[4]  M. Takeda,et al.  Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry , 1982 .

[5]  Frank Vössing,et al.  Vibration analysis by means of digital shearography , 1998 .

[6]  Guillermo H Kaufmann,et al.  Phase measurement in temporal speckle pattern interferometry: comparison between the phase-shifting and the Fourier transform methods. , 2002, Applied optics.

[7]  Nandini Bhattacharya,et al.  Maintaining sub-pixel alignment for a single-camera two-bucket shearing speckle interferometer , 2005 .

[8]  Sheng Liu,et al.  Vibration measurement of MEMS by digital laser microinterferometer , 2005, SPIE Optics + Photonics.

[9]  M. P. Kothiyal,et al.  Use of spatial phase shifting technique in digital speckle pattern interferometry (DSPI) and digital shearography (DS). , 2006, Optics express.

[10]  Masaaki Adachi,et al.  Automatic Deformation Analysis in Electronic Speckle Pattern Interferometry Using One Speckle Interferogram of Deformed Object , 1997 .

[11]  M Kujawinska,et al.  Multichannel phase-stepped holographic interferometry. , 1988, Applied optics.

[12]  Chih-Kung Lee,et al.  Phase-shifting algorithms for electronic speckle pattern interferometry. , 2002, Applied optics.

[13]  Luigi Bruno,et al.  Design and calibration of a piezoelectric actuator for interferometric applications , 2007 .

[14]  K. Creath.  Temporal Phase Measurement Methods , 1993 .

[15]  Wei An,et al.  Speckle interferometry for measurement of continuous deformations , 2003 .

[16]  Jonathan M. Huntley,et al.  Automated fringe pattern analysis in experimental mechanics: A review , 1998 .