The results of the mathematical calculations for the tooth bridge prostheses are discussed. Holographic interferometry with double exposition is used for verification of the model calculation results. This method may be used to define the safety degree and the quality of the implant and besides, the dentures influence on the bone tissue. There were given the results of the experimental work on different kinds of implants and the way they can be inserted into the jaw.

A new theoretical-experimental approach for determining all the components of stress tensor on the surface of the object was proposed. The components of displacement vector are determined in the given area of the surface using holographic interferometry methods, basing on the experimental measurements. Applying linear approximation to the displacements in the given area, one can determine all the components of displacement vector by executing calculations, which are easy to perform.

The applying of stroboscopic methods in optical holographic measurements is limited due to the influence of quality of holographic arrangement on the accuracy of results. Parasitical interferometric fringes as a result of pulse duration or phase synchronization instability may be presented on a hologram and, such fringes have no relationship to real displacement or deformation. It creates a lot of troubles for researchers and, finally leads to refuse of using the stroboscopic technique. However, the troubles may be successfully overcome as if we analyze all kinds of influences on the quality of stroboscopic interferogram. This paper reports about the influence of pulse duration and phase instability. The presented results allow to realize correct stroboscopic holographic measurement. The problem of quality of applied arrangement has been discussed as well.

Theoretical and experimental aspects of frequency-bounded vibration investigations were discussed. It was shown that stroboscopic holography has an advantage in comparison with other ones. Digital calculation shows that the result depends on accuracy of setting the phases of strobe pulses.

Experimental aspects of frequency-bounded vibration investigations were observed. Experimental set-up for stroboscopic holographic investigation of bounded vibration by using a continue-wave laser was described. Experimental investigations have shown that stroboscopic technique allows to separate different mode-shapes vibrating simultaneously. Pulse laser and digital holographic technique was applied to frequency-bounded vibrational investigations as well. The results of digital evaluations of separated mode-shapes were presented.

Two laser interferometric methods with focused laser probing beam for thickness measurements of transparent films and layers are discussed. In both methods the exact focusing of probing beam on the objects surface permit to determine the parameters of random inhomogeneous objects, such as coatings on the rough surfaces. The first of the methods is a so-called focused oblique laser beam (FOLB) method. In this method at illumination by focused oblique laser beam of transparent layer with rough rear surface the reflected field performs superposition of beams with smooth and speckle-modulated wave fronts. The quasiregular interference pattern in reflected field is observed when the waist of focused laser beam overlap a rough rear surface of tested layer. Knowing the angular period of observed interference fringes and refractive index of layer medium one can determine the local geometrical thickness of a layer. The second method is based on the so-called Laser Wave Front Matching Interferometer (LWFMI) which is constructed under scheme of Michelson interferometer with focusing microobjectives in the interferometer branches (Linnik scheme) and wide integrating detector aperture in common exit branch. In the envelope of interference LWFMI signal as a function of object displacement relatively to a focal point of an interferometer focusing objective the peaks are observed when the probing beam is focused on the front and rear surfaces of a layer. The distance bewteen the interference signal peaks is proportional to the geometrical thickness of a layer and can be measured by the technique of interference fringe counting. As in the first method geometrical thickness can be obtained, if the refractive index of layer medium is known.

A new remote method for a fast inspection of the optical thickness of transparent elements is developed. The method is based on the use of an high order interference of white light reflected from the sample's sides. Method gives a possibility for in situ measuring the optical thickness of the sample with accuracy to ~0.5 nm on aperture before 100mm and distance as far as some meters.

Low coherence interferometric systems using multimode fiber link between reference interferometer and sample or (and) between sample and photodetector are studied. The general theory of these systems is developed, and their real world performance in industrial environments is estimated. The hybrid interferometric systems are proposed in whose the sample is illuminated via singlemode fiber, and the light from the sample is delivered to the photodetector via multimode fiber. The advantages of such systems are shown. Possible industrial applications of multimode fiber optical interferometry for in-line measurement of geometric parameters are discussed.

New low coherence interferometric technique for remote comparison of two optical path differences utilizing common path geometry is proposed and demonstrated. The differential profiling of transparent structures by new technique is considered and demonstrated experimentally. In the experiment, nanometer accuracy of differential profiling is achieved, and high noise immunity of the proposed technique is demonstrated. The "sample-etalon" version of the technique is proposed which enables measurement of optical path difference with better noise immunity, than conventional low coherence interferometry. High noise immunity of the technique allows its efficient application for in situ precision measurements of geometric parameters of micro- and nanostructures in adverse environments.

Interferometric optical radar techniques are widely used in non-contact testing and production control. Interferometric spectral radar includes an unbalanced low-coherent interferometer with a subsequent sepctrometer that provides the channeled spectrum observation in the form of spectral modulated fringes inside the light source spectral band. We propose to use the stochastic phase locked loop (SPLL) method for processing the spectral fringe obtained with the measuring wave interaction with a partially scattering tissues. This method involves the dynamic description of the stochastic signals by the discrete stochastic differential equations. Stochastic dynamic fringe processing is based on the prediction the signal value at a next discretization step using whole statistical information available before this step. The prediction error is calculated as the difference between observed and predicted values. Optimal SPLL method provides the minimum RMS error of stochastic fringe phase estimation. Recurrence SPLL procedure increases the quickness of calculations and allows creating the compact measuring devices for industrial inspection.

The approximate algebraic methods of the solution of a tomography problem of restitution of the performance of extended physical fields in matching with neural-like method of the solution of such problem are considered. The analyses of methods and results of modeling are made.

All increasing amounts of recording data and data processing requires minimization of sizes of archive memory, which can be effectively reached by raising of optical recording density. Consequently, in the framework of present analysis, central interest is to study a possibility to use speckleograms written with scaling for realizing such tasks in data array processing as subtraction of image. As far as specklegrams are written without any specifically formed reference beam in multiple-mode laser radiation, they display rich optical data processing potential for diffuse reflecting objects in natural conditions.

The method of the qualitative bioliquids testing of chemical agents on their crystallographic by way of transformation of analog information contained in a crystallographic image in the digital form with the help of the Fourier optics methods and to process by standard methods of mathematical statistics is discussed. Experimentally with the help of correlator of a Vander Lugt it is possible to translate analog information contained in an image of a crystallogram into digital form. That chosen by us is informational - important elements had a narow band of spatial frequencies therefore it was possible to achieve invariance to a turn. For reaching invariance to a scale it is necessary to include into the scheme of a correlator a binary filter which would realize transformation of a Mellin. With its help it is possible to receive additional information about sizes of informational - significant elements, that is of interest for testing of crystallograms.

It is shown, that the structure of the arising self-images is connected both with the presence of local cross nonuniformities of a field within the limits of one space period of structure, and with nonlocalized influence on field of all aperture of an object or optical system. The phenomenon of a self-imaging of the images of periodic object (Talbot effect) in essentially nonparaxial area of a diffraction is experimentally ivnestigated. Transformations of periodic fields of an optical range for optical processing of the two-dimensional images are offered and investigated. It is shown, that a choice of various geometry of the optical scheme for synthesis of the periodic object images in the nonzero diffraction orders, permits to execute the two-dimentional image transformation to one-dimensional and on the contrary. Method of formation of the periodic objects images in nonzero diffraction orders is offered and investigated, which can form the basis for systems of images multiplication.

The paper reports the results of light beams transformation at multimode fibers exit to increase axial light intensity. It is achieved by smoothing of the output wavefront. To eliminate wavefront inhomogeneity we used two-stage correlation method of laser beams transformation. The main elements of two-stage correlation system are the spatial modulator and the hologram. The effect of the two-stage both on laser modes and on output fields of the multimode fiber were simulated and experimentally studied. The investigation has established that considerable increases of the axial intensity is achieved for the fields having mode content which is similar to the mode contents at the hologram recording stages. At the same time, the intensity increase is actualized for wide set of the specific field distributions at the input of system.

This paper presents feasibility studies of a multispectral moving target detection (MTD) system designed to detect and track low-signature moving targets. The system performs multispectral detection based on linear and nonlinear optimal discriminating features (ODF) for low-signature target detection and correlation tracking of slowly moving targets in clutter. Multispectral detection was tested against multispectral data from an acousto-optic tunable filter in the visible and near infrared. Optical Joint Transform Correlator for target tracking was designed and manufactured. The feasibility of correlation target tracking was demonstrated with actual Army MICOM FLIR long wavelength infrared (LWIR: 8 to 12 μm) images of moving vehicles and tanks in clutter.

The real time machine vision system for non-contact measurements of the masses of free falling hot glass drops is represented. The work of the system is based on preliminary optical processing of free falling hot glass drops images, videosignal input in the computer, analysis of the videostream in real time, selection of the geometric information, calculation of volume and mass of drop and statistical processing of results. The realized low cost system is used in the acting production of glass bottles. The error of measurement of masses of hot glass drops is 0,5-1%.

Formation of the nanoperiodic structures in polycrystalline synthetic diamond films and in polyimide films on the fused silica substrates under nanosecond pulses of UV radiation from a three-cascade XeCl laser with the emission wavelength 308 nm was investigated. The possibility of creation the peridical structures on diamond surface by interferential pulsed laser sublimation has been demonstrated. Two different mechanism of modification of the polyimide films depending on the exposure were observed. At the exposures up to 100 mJ/cm² humps occurred on the surface, at the exposures more than 100 mJ/cm² the holes appear in the film. The periodical structures on fused silica surface were obtained using UV photoresist exposed by interferential pulsed laser irradiation and Ar ion etching.

The memory system based on the Seebeck effect in polymorphous alloys with constant chemical composition is proposed. The physical mechanism for the operating regime of the thermogalvanic digital data storing device is discussed. Construction realization of such system is considered too.

Dichromated gelatin (DG) is widely used in holography with traditional water developing technique, but it is possible to use one as the real time recording media under the hot vapor developing as well as the self-developing DG-modification. The absence of post-exposure processing allows to use it for in-situ experiments. The recorded holgoram is the result of conformational changes in the structure of a gelatin system. It is the result of hierarchy of sequential structural gelatin macromolecules modifications. Characteristics of these processes can be effectively controlled at the levels of the primary (the chemical composition of emulsion) and ternary (coil-globule transitions for the entire macromolecule) structures of the SD DG system. We analyzed the influence of IR laser annealing and/or special highly hardened gelatin sublayer on the gelatination acceleration and resulting diffraction efficiency of layers with thickness more than 1 mm. The properties of non-classical new version of DG systems are discussed.

The gelling kinetics of the self-developing dichromated gelatin layers sensitized by dye methylene blue is investigated. It is shown, that glycerol in given system is not only plasticizer, as increments number of intermolecular links with macromolecules of gelatin. On base of polarographic and holographic examinations the optimal relatin of glycerol and gelatin in system is chosen. The glycerol adding in gelatin decreases velocity of achievement of the maximum diffraction efficiency.

It is offered to use the methods of the optical superresolution based on the redistibution of spatial, temporal and polarization degrees of freedom of the optical image conception for the holograms protection against a falcification. On an example of optical synthesis of the aperture (OSA) at recording of the Fourier holograms the principles and possibilities superresolving methods of coding are discussed. The peculiarities of the method OSA associated with appearances of the self-image of periodic coherent fields (Talbot's effect) are considered.

Three-dimensional image creation based on registration interference pattern of Fizeau interferometer is considered. Recording of interference pattern allows storing both intensity and direction of propagation of incoherent light waves. It gives the possibility of wave front reconstruction without reference wave. 3D displays compatible to usual may be made. Optical experiment proves this possibility and estimations for the computer display construction is done.