Polarization sensitive optical coherence tomography for technical materials investigation

Strąkowski, Marcin R.; Pluciński, Jerzy; Jędrzejewska‐Szczerska, Małgorzata; Hypszer, Ryszard; Maciejewski, M.; Kosmowski, Bogdan B.

doi:10.1016/j.sna.2007.04.016

Cited by 19 publications

(21 citation statements)

References 28 publications

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“…In material studies OCT has been used mostly for the nondestructive testing of semiconductors [3], glass [4], composite materials, and plastic [5][6][7]. OCT and other techniques, such as white light interferometry, have also been used for metallic materials, for example, to determine their roughness [8].…”

Section: Introductionmentioning

confidence: 99%

Surface imaging of metallic material fractures using optical coherence tomography

et al. 2014

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We demonstrate the capability of optical coherence tomography (OCT) to perform topography of metallic surfaces after being subjected to ductile or brittle fracturing. Two steel samples, OL 37 and OL 52, and an antifriction Sn-Sb-Cu alloy were analyzed. Using an in-house-built swept source OCT system, height profiles were generated for the surfaces of the two samples. Based on such profiles, it can be concluded that the first two samples were subjected to ductile fracture, while the third one was subjected to brittle fracture. The OCT potential for assessing the surface state of materials after fracture was evaluated by comparing OCT images with images generated using an established method for such investigations, scanning electron microscopy (SEM). Analysis of cause of fracture is essential in response to damage of machinery parts during various accidents. Currently the analysis is performed using SEM, on samples removed from the metallic parts, while OCT would allow in situ imaging using mobile units. To the best of our knowledge, this is the first time that the OCT capability to replace SEM has been demonstrated. SEM is a more costly and time-consuming method to use in the investigation of surfaces of microstructures of metallic materials.

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Section: Introductionmentioning

confidence: 99%

Surface imaging of metallic material fractures using optical coherence tomography

et al. 2014

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“…1: Detector 1 and 3, Detector 2 and 4). In order to increase the signal to noise ratio, low noise balanced photodetectors have been used [14]. The OCT system features have been summarized in Table 1.…”

Section: Oct Measurement Systemmentioning

confidence: 99%

“…For this purpose, the OCT systems with additional functions have been developed. The main extensions enable the OCT Doppler analysis (D-OCT) [13], polarization sensitive (PS-OCT) [14][15][16][17][18][19][20] or expand the OCT measurements by wavelength dependent analysis of the device scattering or absorption features (SOCT) [21]. The other functional OCT systems which cannot be omitted, are Coherent Anti-Stokes Raman Scattering OCT (CARS-OCT) [22,23] and Coherent Stokes Raman Scattering OCT (CSRS-OCT) [23], Second Harmonic Generation OCT (SHG-OCT) [23], and Third Harmonic Generation OCT (THG-OCT) [23].…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to conventional OCT, the PS-OCT is capable of analyzing the state of polarization of the light backscattered from the investigated object [14][15][16][17][18][19][20]. Applying the polarization-sensitive analysis in OCT allows to characterize the polarization properties of the particular parts of the tested object.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, polarization-sensitive analysis (PS) brings also a unique benefit to OCT measurements of optically isotropic devices. The PS analysis improves the OCT imaging by increasing the visualization contrast [9,14].…”

Section: Introductionmentioning

confidence: 99%

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Non-Destructive Inspection of Anti-Corrosion Protective Coatings Using Optical Coherent Tomography

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Optical Coherence Tomography (OCT) is one of the most rapidly advancing techniques. This method is capable of non-contact and non-destructive investigation of the inner structure of a broad range of materials. Compared with other methods which belong to the NDE/NDT group (Non-Destructive Evaluation/Non-Destructive Testing methods), OCT is capable of a broad range of scattering material structure visualization. Such a non-invasive and versatile method is very demanded by the industry. The authors applied the OCT method to examine the corrosion process in metal samples coated by polymer films. The main aim of the research was the evaluation of the anti-corrosion protective coatings using the OCT method. The tested samples were exposed to a harsh environment. The OCT measurements have been taken at different stages of the samples degradation. The research and tests results have been presented, as well as a brief discussion has been carried out.

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Experimental Analysis of Mechanical Behaviour of Advanced Materials

Ruiz

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Polarization sensitive optical coherence tomography for technical materials investigation

Cited by 19 publications

References 28 publications

Surface imaging of metallic material fractures using optical coherence tomography

Surface imaging of metallic material fractures using optical coherence tomography

Non-Destructive Inspection of Anti-Corrosion Protective Coatings Using Optical Coherent Tomography

Experimental Analysis of Mechanical Behaviour of Advanced Materials

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