Proceedings of Topical Meeting on Optoinformatics (pdf-format, 1.21 ...
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Proceedings of Topical Meeting on Optoinformatics (pdf-format, 1.21 ...

Proceedings of Topical Meeting on Optoinformatics (pdf-format, 1.21 ... Proceedings of Topical Meeting on Optoinformatics (pdf-format, 1.21 ...

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24 OPTOINFORMATICS’05 functions depended from same 2D field, but, how it is shown after, gives a clear defect location. The experimental results, made in the frameworks ong>ofong> the International Project GLAST, are presented. Our investigations show a perspective ong>ofong> our approach. The submitted results have both methodological and applied significance for the pattern analysis. Author is very grateful to the Prong>ofong>. C. Moriconi, Prong>ofong>. D. Batani, Prong>ofong>. M.G. Karimov, Prong>ofong>. N.A. Ashurbekov, Dr. M.A. Caponero, and Dr. E. Bacchi for the teamwork and fruitful discussions. The work was supported by the Ministry ong>ofong> Education ong>ofong> Russia program “The development ong>ofong> the potential ong>ofong> Higher School” (34054). 1. A.A. Aliverdiev. Application ong>ofong> the velocity spectrum to a spatiotemporal study ong>ofong> high-speed processes. // Technical Physics, No. 9, 1997, p.1102-1103. 2. A.A. Aliverdiev. On the Possibility ong>ofong> Using the Velocity ong>ofong> Recorded Signal for Tomographic Study ong>ofong> Excited Media. // Radiophysics and Quantum Electronics, 40, No. 6, 1997, p. 504-509. 3. G.K. Makhtimagomedov, M.G. Karimov, A.A. Aliverdiev, R.M. Batyrov, G.M. Khalilulaev, A.A. Amirova, M.M. Akhmedov, M.M. Ataev. About the modelling ong>ofong> spatial-temporal tomographic reconstruction ong>ofong> sphere ong>ofong> phase transitions. // Proc. ong>ofong> International Conference "Phase Transitions and Critical Phenomena in Condensed Matter", Makhachkala, Russia, 1998, B3-6. 4. Aliverdiev. Applications ong>ofong> the time-resolved integral-geometric methods for the composite materials diagnostic. // “Scientific Israel – Technological Advantages”, 2002, No. 4, p. 108-111. 5. A.A. Aliverdiev. Application ong>ofong> the direct Radon transformation for handling a spatially - time dependence ong>ofong> spontaneous radiation ong>ofong> a nanosecond breakdown. // Proc. ong>ofong>. 25th International Conference on Phenomena in Ionized Gases, Nagoya, Japan, July 17 - 22, V. 4, 2001, p. 59-60. 6. Aliverdiev, M. Caponero, C. Moriconi. Speckle Velocimeter for a Self-Powered Vehicle, Technical Physics, 2002, No.8, p. 1044-1048. 7. Aliverdiev; M. Caponero, C. Moriconi. Speckle-velocimeter for robotized vehicles, ong>Proceedingsong> ong>ofong> SPIE, Volume 5147, 2003, pp. 140-147. 8. Aliverdiev, M. Caponero, and С. Moriconi. Some Issues Concerning the Development ong>ofong> a Speckle Velocimeter, Technical Physics, Vol. 48, No. 11, 2003, pp. 1460–1463. 9. A.A. Aliverdiev, R.D. Conza, M.A. Caponero, and C. Moriconi. About authomatisation ong>ofong> dynamic Electronic Speckle Pattern Interferometry measurements in application to defect detection // Proc. ong>ofong> LOYS, June 30- July 4, 2003, St. Petersburg, Russia, p. 29. 10. A. Aliverdiev, N. A. Ashurbekov, Application ong>ofong> the Direct Radon Transform for Processing ong>ofong> a Spatiotemporal Dependence ong>ofong> Spontaneous Emission from a Nanosecond Discharge in Long Tubes, Russian Physics Journal, 47, Issue 3, March, 2004, pp. 331 - 332. 11. Aliverdiev, D. Batani, V. Malka, T. Vinci, M. Koenig, A. Benuzzi-Mounaix. About the temporal evolution ong>ofong> plasmas, produced from solid targets by high-power laser irradiation // Proc. ong>ofong> International Conference “Phase transition, critical and non-linear phenomena in condensed media” Makhachkala, Russia, 2004, pp. 332-335.

SAINT-PETERSBURG, October 17 – 20, 2005 25 LASER PHOTOACOUSTIC MICROSCOPY OF MECHANICAL STRESSES IN MODERN MATERIALS K.L.Muratikov, A.L.Glazov Physical-Technical Institute ong>ofong> RAS, Polytekhnicheskaya 26, 194021, St.Petersburg, Russia E-mail: klm@holo.iong>ofong>fe.rssi.ru The main concepts ong>ofong> modern photoacoustic and photothermal microscopy are described. The problem ong>ofong> mechanical stress detection and imaging by photoacoustic microscopy is analyzed both theoretically and experimentally. Examples ong>ofong> the photoacoustic microscopy application for stress detection in brittle and ductile materials are presented. Recently photoacoustic and photothermal microscopy methods have been successfully used for the diagnostics ong>ofong> defects in the bulk and near subsurface layers ong>ofong> various materials. Photoacoustic and photothermal microscopies are able to provide important information about local elastic, thermal and thermoelastic properties ong>ofong> materials. These methods proved to be effective in detecting cracks, voids, delaminated layers, and foreign inclusions. The main advantages ong>ofong> these methods are nondestructive character, ability to detect subsurface defects and high spatial resolution. Essentially less attention has been paid to the problem ong>ofong> mechanical stress detection by photoacoustic and photothermal methods.The main purpose ong>ofong> this work is to present our results in the field ong>ofong> mechanical stresses detection by photoacoustic method. The problem ong>ofong> residual and mechanical stresses detection is an important problem ong>ofong> modern material physics, mechanics and engineering. Various methods such as optical, ultrasonic, Raman spectroscopy, magnetic, X-ray and neutron diffraction methods, stress pattern analysis by measurement ong>ofong> thermal emission (SPATE), are usually used for this purpose. Hole drilling and compliance methods are also actively investigated at present for residual stress detection. Recently holographic interferometry based on the hole drilling method in conjunction with holographic or speckle interferometry has attracted serious attention for solution ong>ofong> this problem. These methods have been already implemented effectively for the residual stress detection while the application ong>ofong> most ong>ofong> them is limited substantially by the physical nature ong>ofong> the used effect. The application ong>ofong> the photoacoustic thermoelastic effect for the diagnostics ong>ofong> mechanical stresses is considered at present with growing interest [1-3] . The main advantage ong>ofong> the photoacoustic thermoelastic method lies in its universal character and in the possibility ong>ofong> application to objects ong>ofong> different nature at microscopic and mesoscopic scales. Many important details ong>ofong> the problem ong>ofong> residual stress detection by photoacoustic and photothermal methods are not solved up to now. In this work both experimental and theoretical investigations are presented which are able to clear up the situation in this field. Experimental investigations ong>ofong> the work are based on new multimode approach proposed by us recently [3-5] which is able to provide an important opportunity to control elastic, thermal and thermoelastic parameters ong>ofong> materials independently and locally. Different types ong>ofong> photoacoustic and photothermal experiments have been performed. They can be classified into three types: (a) Photoacoustic and photothermal measurements and imaging performed in regions near Vickers indentations.

24 OPTOINFORMATICS’05<br />

functi<strong>on</strong>s depended from same 2D field, but, how it is shown after, gives a clear defect<br />

locati<strong>on</strong>. The experimental results, made in the frameworks <str<strong>on</strong>g>of</str<strong>on</strong>g> the Internati<strong>on</strong>al Project<br />

GLAST, are presented.<br />

Our investigati<strong>on</strong>s show a perspective <str<strong>on</strong>g>of</str<strong>on</strong>g> our approach. The submitted results have<br />

both methodological and applied significance for the pattern analysis.<br />

Author is very grateful to the Pr<str<strong>on</strong>g>of</str<strong>on</strong>g>. C. Moric<strong>on</strong>i, Pr<str<strong>on</strong>g>of</str<strong>on</strong>g>. D. Batani, Pr<str<strong>on</strong>g>of</str<strong>on</strong>g>.<br />

M.G. Karimov, Pr<str<strong>on</strong>g>of</str<strong>on</strong>g>. N.A. Ashurbekov, Dr. M.A. Cap<strong>on</strong>ero, and Dr. E. Bacchi for the<br />

teamwork and fruitful discussi<strong>on</strong>s. The work was supported by the Ministry <str<strong>on</strong>g>of</str<strong>on</strong>g> Educati<strong>on</strong><br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> Russia program “The development <str<strong>on</strong>g>of</str<strong>on</strong>g> the potential <str<strong>on</strong>g>of</str<strong>on</strong>g> Higher School” (34054).<br />

1. A.A. Aliverdiev. Applicati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> the velocity spectrum to a spatiotemporal study <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

high-speed processes. // Technical Physics, No. 9, 1997, p.1102-1103.<br />

2. A.A. Aliverdiev. On the Possibility <str<strong>on</strong>g>of</str<strong>on</strong>g> Using the Velocity <str<strong>on</strong>g>of</str<strong>on</strong>g> Recorded Signal for<br />

Tomographic Study <str<strong>on</strong>g>of</str<strong>on</strong>g> Excited Media. // Radiophysics and Quantum Electr<strong>on</strong>ics, 40,<br />

No. 6, 1997, p. 504-509.<br />

3. G.K. Makhtimagomedov, M.G. Karimov, A.A. Aliverdiev, R.M. Batyrov, G.M.<br />

Khalilulaev, A.A. Amirova, M.M. Akhmedov, M.M. Ataev. About the modelling <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

spatial-temporal tomographic rec<strong>on</strong>structi<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> sphere <str<strong>on</strong>g>of</str<strong>on</strong>g> phase transiti<strong>on</strong>s. // Proc. <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

Internati<strong>on</strong>al C<strong>on</strong>ference "Phase Transiti<strong>on</strong>s and Critical Phenomena in C<strong>on</strong>densed<br />

Matter", Makhachkala, Russia, 1998, B3-6.<br />

4. Aliverdiev. Applicati<strong>on</strong>s <str<strong>on</strong>g>of</str<strong>on</strong>g> the time-resolved integral-geometric methods for the<br />

composite materials diagnostic. // “Scientific Israel – Technological Advantages”,<br />

2002, No. 4, p. 108-111.<br />

5. A.A. Aliverdiev. Applicati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> the direct Rad<strong>on</strong> trans<strong>format</strong>i<strong>on</strong> for handling a<br />

spatially - time dependence <str<strong>on</strong>g>of</str<strong>on</strong>g> sp<strong>on</strong>taneous radiati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> a nanosec<strong>on</strong>d breakdown. //<br />

Proc. <str<strong>on</strong>g>of</str<strong>on</strong>g>. 25th Internati<strong>on</strong>al C<strong>on</strong>ference <strong>on</strong> Phenomena in I<strong>on</strong>ized Gases, Nagoya,<br />

Japan, July 17 - 22, V. 4, 2001, p. 59-60.<br />

6. Aliverdiev, M. Cap<strong>on</strong>ero, C. Moric<strong>on</strong>i. Speckle Velocimeter for a Self-Powered<br />

Vehicle, Technical Physics, 2002, No.8, p. 1044-1048.<br />

7. Aliverdiev; M. Cap<strong>on</strong>ero, C. Moric<strong>on</strong>i. Speckle-velocimeter for robotized vehicles,<br />

<str<strong>on</strong>g>Proceedings</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> SPIE, Volume 5147, 2003, pp. 140-147.<br />

8. Aliverdiev, M. Cap<strong>on</strong>ero, and С. Moric<strong>on</strong>i. Some Issues C<strong>on</strong>cerning the Development<br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> a Speckle Velocimeter, Technical Physics, Vol. 48, No. 11, 2003, pp. 1460–1463.<br />

9. A.A. Aliverdiev, R.D. C<strong>on</strong>za, M.A. Cap<strong>on</strong>ero, and C. Moric<strong>on</strong>i. About<br />

authomatisati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> dynamic Electr<strong>on</strong>ic Speckle Pattern Interferometry measurements in<br />

applicati<strong>on</strong> to defect detecti<strong>on</strong> // Proc. <str<strong>on</strong>g>of</str<strong>on</strong>g> LOYS, June 30- July 4, 2003, St. Petersburg,<br />

Russia, p. 29.<br />

10. A. Aliverdiev, N. A. Ashurbekov, Applicati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> the Direct Rad<strong>on</strong> Transform for<br />

Processing <str<strong>on</strong>g>of</str<strong>on</strong>g> a Spatiotemporal Dependence <str<strong>on</strong>g>of</str<strong>on</strong>g> Sp<strong>on</strong>taneous Emissi<strong>on</strong> from a<br />

Nanosec<strong>on</strong>d Discharge in L<strong>on</strong>g Tubes, Russian Physics Journal, 47, Issue 3, March,<br />

2004, pp. 331 - 332.<br />

11. Aliverdiev, D. Batani, V. Malka, T. Vinci, M. Koenig, A. Benuzzi-Mounaix. About the<br />

temporal evoluti<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> plasmas, produced from solid targets by high-power laser<br />

irradiati<strong>on</strong> // Proc. <str<strong>on</strong>g>of</str<strong>on</strong>g> Internati<strong>on</strong>al C<strong>on</strong>ference “Phase transiti<strong>on</strong>, critical and n<strong>on</strong>-linear<br />

phenomena in c<strong>on</strong>densed media” Makhachkala, Russia, 2004, pp. 332-335.

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