Dainty author of laser speckle and related phenomena. You can read online speckle phenomena in optics here in pdf, epub, mobi or docx formats. Download pdf download citation view references email request permissions export to collabratec alerts metadata. Statistical properties of laser speckle patterns in laser speckle and related phenomena vol. Download pdf speckle phenomena in optics book full free. Speckle patterns produced by coherent waves interfering with each other are undesirable in many imaging applications for example, in laser projection systems but on the other hand, they contain. The speckle produced when a laser beam is scattered from a rough surface can be used in undergraduate experiments to demonstrate various properties of light and also to test for faulty eyesight. We discuss the unusual diffraction properties of laser speckle and related structures generated by stimulated rotational raman scattering srrs from nitrogen in. This paper deals with computation of mean speckle size in a speckle pattern generated through a numerical simulation of speckle after reflection of a gaussian beam off a rough objects surface. If the inline pdf is not rendering correctly, you can download the pdf file here. It gives a detailed description of speckle, explains techniques for suppressing speckle, and it gives several applications of speckle in imaging and metrology.
This site is like a library, use search box in the widget to get ebook that you want. Phase shifting technique in laser speckle image processing r. Laser speckle and applications in optics sciencedirect. This phenomenon is often observed with laser light and can be disturbing. These applications include interference with scattered light, optical processing of images, and studies of surface roughness as well as displacements and deformations. Pdf statistical properties of laser speckle patterns. A technique for obtaining quantitative velocity data from hydrodynamic flow fields using laser speckle photography lsp has been developed and uses the scattered light from the interior of a. Encyclopedia of laser physics and technology speckle. Dynamic laser speckle and applications discusses the main methodologies used to analyze biospeckle phenomena with a strong focus on experimentation.
Flow visualization by means of singleexposure speckle. Laser speckle and related phenomena topics in applied physics 2nd ed. Osa standardized speckle measurement method matched to. Analysis of laser speckle severity, granularity, and anisotropy using the power spectral density in polarcoordinate representation desmond c. Speckle pattern is a random granular pattern produced by the reflection of coherent light beam e. Download book speckle phenomena in optics in pdf format. Volume 37, number 5 optics communications 1 june 1981 flow visualization by means of singleexposure speckle photography a. Takia, dynamic laser speckles and their application to velocity measurements of the diffuser object, applied physics, 25, 179194, 1981. Speckle reduction involves various techniques from source modifications to. Jacquot nanophotonics and metrology laboratory, swiss federal institute of technology, ch1015 lausanne, switzerland. Goodman has provided us with a clearly written technical book. Download pdf download citation view references email request permissions export to collabratec alerts advertisement. Theory and applications roberts and company publishers, usa, 2007.
Probability density function of the intensity assume independent of an lord rayleigh 1919 showed that the radial profile of the joint probability density. A speckle pattern is an intensity pattern produced by the mutual interference of a set of wavefronts. Dainty, laser speckle and related phenomena springerverlag, 1975. The laser speckle phenomena can be used to extract information from the illuminated surface that produces the pattern. A laser pointer and a frosted light bulb are all you need to investigate laser speckle, grainy patterns in laser light that seem to move in different directions depending on whos looking. Specklefree laser imaging using random laser illumination. International journal of engineering research and general. Ong sanjeev solanki xinan liang xuewu xu data storage institute astar agency for science, technology and research singapore 117608, singapore email. Lasers are indispensable light sources in modern imaging systems. Briers fachbereich 7physik, universitiit essen, postfach 103764, 14300 essen, fr. Dainty editor, laser speckle and related phenomena, springer. Dainty is the author of laser speckle and related phenomena 0.
Journal of the european optical society rapid publications. The paperback of the laser speckle and related phenomena by j. Click download or read online button to get speckle phenomena in optics book now. Estimating particle concentration in natural water by. Enter your mobile number or email address below and well send you a link to download the free kindle app. Osa scatterer recognition via analysis of speckle patterns. Laser speckle and related phenomena, springer, berlin 1975. Starting from the basic idea of a random walk in the complex plane, we derive the firstorder statistics of the complex amplitude, intensity and phase of speckle. Light scattering due to interaction with a material has long been known to create speckle patterns. A systematic approach to new dynamic speckle laser phenomena, this book provides the physical theory and. Effect of signal intensity and camera quantization on laser speckle contrast analysis.
Another difference between laser speckle contrast techniques and ldpi is the opportunity to apply highpass filtering e. The standard measure of a speckle pattern is known as the contrast, which is shown below in equation 1. Both the aforementioned techniques speckle interferometry and speckle decorrelation were applied by illuminating the specimen by an expanded and collimated beam, supplied by a 6 w argonion laser operating in singleline mode at the wavelength of 514. Speckle phenomena in optics download ebook pdf, epub. Pdf speckle phenomena in optics download full pdf book. Laser speckle and related phenomena topics in applied. Laser speckle and applications in optics focuses on developments in laser speckle techniques, with emphasis on the experimental aspect of phenomena and on applications in optics. Laser speckle contrast imaging lsci is becoming an established method for fullfield imaging of blood flow dynamics in animal models.
A reliable quantitative model with comprehensive noise analysis is necessary to fully utilize this technique in biomedical applications and clinical trials. Then you can start reading kindle books on your smartphone, tablet, or computer. Speckle phenomena in optics available for download and read online in other formats. Download now laser speckle and applications in optics focuses on developments in laser speckle techniques, with emphasis on the experimental aspect of phenomena and on applications in optics. Pdf image synthesis from nonimaged laserspeckle patterns. Goodman, statistical properties of laser speckle patterns, in laser speckle and related phenomena, topics in applied physics, j. Springer verlag, berlin heidelberg new york tokyo, 1984. Effect of signal intensity and camera quantization on.
Pdf when laser light strikes a diffuse object, such as paper, the scattered light has been observed to possess a granular spatial structure. For laser speckle contrast techniques, filtering out those artifacts is not possible, which is a major disadvantage. This phenomenon has been investigated by scientists since the time of newton, but speckles have come into prominence since the invention of the laser and have now found a variety of applications. Us6191887b1 laser illumination with speckle reduction. Since speckle plays an important role in many physical phenomena, it is essential to fully understand its statistical properties.
Laser speckle and related phenomena download ebook pdf. Top organizations with patents on technologies mentioned in this article. Analysis of laser speckle severity, granularity, and. Click download or read online button to get laser speckle and related phenomena book now. We have demonstrated that even though speckle patterns from different objects are very similar, they contain minute dissimilarities that can be used to differentiate between the originating scatterers. Standardized speckle measurement method matched to human speckle perception in laser projection systems stijn roelandt, youri meuret, gordon craggs, guy verschaffelt, peter janssens, and hugo thienpont. Diffraction properties of laser speckle generated by.
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