Theory and calibration of speckle dynamics of phase object

Vladimirov, A. P.; Druzhinin, A. V.; Malygin, A. S.; Mikitas, K. N.

doi:10.1117/12.924800

Cited by 13 publications

(18 citation statements)

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“…Равенство справедливо, если в точке наблюдения реальная и мнимая части суммарной комплексной амплитуды распределены по закону Гаусса, а фаза однородно распределена в интервале от - до + . В работах [16,17] …”

Section: микроскопические процессы и динамика спекловunclassified

“…Задача по установлению связи между динамикой фаз волн, зондирующих тонкий про-зрачный (фазовый) объект, и динамикой спеклов в плоскости изображения объекта, рассмат-ривалась в работах [16,17,19,20]. В [16,17,19] определялась интенсивность излучения, взя-тая в фиксированный момент времени, а в [20] было получено точное теоретическое решение задачи для усредненных во времени спеклов.…”

Section: макро-и микро-процессы в тонких прозрачных средах и динамикаunclassified

“…В [16,17,19] определялась интенсивность излучения, взя-тая в фиксированный момент времени, а в [20] было получено точное теоретическое решение задачи для усредненных во времени спеклов. Оптическая система, рассмотренная в работе [20], а также принятые обозначения представлены на рис.…”

Section: макро-и микро-процессы в тонких прозрачных средах и динамикаunclassified

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Dynamic speckle interferometry of microscopic and macroscopic processes in deformable media

Vladimirov¹

2015

DREAM

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The paper briefly considers the theory of the dynamic variant of optical speckle interferometry and its application to study in real time macroscopic and microscopic processes in deformable media. In the theoretical part, it is shown that it is convenient to study the macroscopic translational displacement, rotation and deformation of bodies by the movement of the whole picture of speckles and the shift of interference fringes of the two speckle fields, while the microscopic phenomena are conveniently studied by the change of the structure of speckle images. The paper presents some applications of original techniques developed by the author to determine rotations and strains of bodies under elastic and plastic deformations, to detect ultrasonic waves and to study the characteristics of crack initiation in high-cycle fatigue. Practical application of the developed techniques for testing macro-and microprocesses in living cells is shown. Keywords: speckles, speckle dynamics, speckle interferometry, displacement, deformation, rotation, damage, high-cycle fatigue, crack, residual life, living cells, metabolism.DOI: 10.17804/2410-9908.2015.6.027-057 References 1.Anisimov I.V., Kozel S.M., Lokshin G.R. Space-time statistical properties of coherent radiation scattered by a moving diffuse reflector. Optics and Spectroscopy, 1969, vol. 27, iss. 3, pp. 483-491. 2. Yoshimura T. Statistical properties of dynamic speckles. Journal of the Optical Society of America A, 1986America A, , vol. 3, no. 2, pp. 1032America A, -1054.Veselov L.M., Popov I.A. Information properties of a time-varying speckle pattern. Optics and Spectroscopy, 1993, vol. 74, iss. 6, pp.685-686. 4. Ruth B., Haina D., Waidelich W. Vibration analysis by speckle counting. Optica Acta: International Journal of Optics, 1983, vol. 30, iss. 6, pp. 841-848. DOI: 10.1080 Vladimirov A.P., Mikushin V.I. Interferometric determination of vector components of relative displacements: theory and experiment. In: Valery V. Tuchin, Vladimir P. Ryabukho, Dmitry A. Zimnyakov, eds. Saratov Fall Meeting '98: Light Scattering

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Section: микроскопические процессы и динамика спекловunclassified

Section: макро-и микро-процессы в тонких прозрачных средах и динамикаunclassified

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Dynamic speckle interferometry of microscopic and macroscopic processes in deformable media

Vladimirov¹

2015

DREAM

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“…The frame repetition rate was up to 25 Hz. The TV camera exposure time was 9 seconds, which exceeded the correlation time of radiation intensity (5-8 seconds), corresponding to the most rapid processes [10].…”

Section: Speckle Interferometric Setupmentioning

confidence: 99%

“…[10] the theoretical justification of the method was given and the calibration was implemented. In Ref.…”

Section: Introductionmentioning

confidence: 99%

The use of laser dynamical speckle interferometry in the study of cellular processes

Vladimirov

Новоселова

Mikhailova

et al. 2016

JBPE

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Abstract.A speckle interferometry setup is mounted, tested and approved that allows the analysis of intracellular processes with large optical magnification. For different part of the cell, the dependences of speckle image correlation coefficients upon time are found. It is shown that the method allows the detection of differences in the process that occur in the nutrient solution outside the cell and inside the cell, as well as those occurring in different parts of the cell.

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Dynamic Speckle-Interferometry of Microscopic Processes in Thin Biological Objects

Vladimirov

2015

Radiophys Quantum El

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Theory and calibration of speckle dynamics of phase object

Cited by 13 publications

References 0 publications

Dynamic speckle interferometry of microscopic and macroscopic processes in deformable media

Dynamic speckle interferometry of microscopic and macroscopic processes in deformable media

The use of laser dynamical speckle interferometry in the study of cellular processes

Dynamic Speckle-Interferometry of Microscopic Processes in Thin Biological Objects

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