Principles and techniques of digital holographic microscopy myung k. Schnars and juptner applied their method to interferome try and demonstrated that digital. The fundamentals of digital recording and mathematical reconstruction of fresnel holograms are described. Juptner, digital recoding and reconstruction of holograms in. The hologram results from the interference between two wave fronts, one reflected or transmitted by the object and the other is the reference.
Covers the profound developments and scale of applications to which digital holography, and in the wider context 3d imaging technologies in general, are now being routinely applied. Digital inline holography dih is an optical technique in which a collimated laser illuminates an object. Principles, techniques and applications by ulf schnars, claas falldorf, john watson, due to covid19, orders may be delayed. A complete digital holographic setup in sense of digital recording and reconstruction was achieved first by coquoz et al. Digital holography and wavefront sensing springerlink. The next part discusses special techniques such as digital lightinflight holography, holographic endoscopy, information encrypting and comparative holography. At that time, scanning devices that could be used for digitizing. Offers a comprehensive introduction to modern applications of holography in the diverse areas of measurement and imaging. Digital holography yarovslavskii, 1980 is a lensless imaging method in which a hologram is recorded with a ccdcamera and reconstructed numerically. The authors have extended the chapter on digital holographic microscopy to incorporate new sections on particle sizing, particle image velocimetry and underwater holography.
So they use holographic displays to show the hologram, depending on a high level of computation. This book is devoted to special techniques in digital holography. Introduction holography is used to precisely measure 3d structures of surfaces. Recently, the holograms of threedimensional objects have been recorded by using ccd cameras and the threedimensional images of the objects reproduced by the computer analysis of digital images in what is referred to as digital holography schnars and juptner 2002, xu et al.
In digital holography, the pixel size of ccd and cmos should be less than the spatial. Basic principles of diffraction and general holography are outlined in sec. Optical properties of polymer and optical fibers k. Schnars and juptner applied their method to interferome. Digital holography conor mc elhinney deptartment of computer science, national university of ireland, maynooth. Digital holography using a laser pointer and consumer digital. The first mentioned type of digital holography finds applications in digital holographic microscopy, particle analysis, and interferometric form and deformation measurement, while the second type constitutes the basis for holographic 3d tv. Digital holography is an interferometric imaging technique that does not require an imaging lens and can be used to perform simultaneous imaging of multidimensional information, such as threedimensional. Synthetic aperture singleexposure onaxis digital holography. Digital holography comes in different flavors, such as offaxis fresnel, fourier, image plane, inline, gabor and phaseshifting digital holography, depending on the optical setup. Digital holography microscopy holography spectral density. Pulsed fullcolor digital holography with a raman shifter.
In fact, subapertures stitching permits to greatly expand the capabilities of optical metrology thus allowing to accurately measure complex optical surfaces such as large spherical. Applications in imaging and microscopy are also described. If youre looking for a free download links of digital holography pdf, epub, docx and torrent then this site is not for you. Digital hologram recording, numerical reconstruction, and related techniques by ulf schnars. Principles, methods, algorithms by leonid yaroslavsky, kluwer 2004 handbook of holographic interferometry. Digital hologram recording, numerical reconstruction, and related. Optical and digital methods by thomas kreis, wiley 2004 digital holography by u. For example the numerical reconstruction of the digitally recorded holograms kreis, 2004. However, a picture is the twodimensional projection. Pdf digital recording and numerical reconstruction of holograms.
The authors have extended the chapter on digital holographic. Numerical reconstruction is achieved by calculating the diffraction of the monochromatic. Electro holography aims to be interactive or even realtime and flexible. Feb 23, 2011 digital holography conor mc elhinney deptartment of computer science, national university of ireland, maynooth. Digital holography dh is a promising technique for modern threedimensional 3d imaging. Digital holography digital holography yarovslavskii, 1980 is a lensless imaging method in which a hologram is recorded with a ccdcamera and reconstructed numerically. Digital recording and numerical reconstruction of holograms. Sag ich zum augenblicke verweile doch, du bist so schon j. Digital holography is applied to measure shape and surface deformation of. The phases of the stored light waves can be calculateddirectly from the digital holograms, without. A gabortype inline holographic scheme 17 does not require optical elements between the sample and the detector, which allows aberrations to be avoided and makes this approach a good choice for terahertz imaging,23. Digital holography offers a means of measuring optical phase data and typically delivers threedimensional surface or optical thickness images.
Digital holography refers to the acquisition and processing of holograms with a digital sensor array, typically a ccd camera or a similar device. This highly practical and selfcontained guidebook explains the principles and major applications of digital hologram recording and numerical reconstruction digital holography. This second edition has been significantly revised and enlarged. Advances in digital holography stanislovas z acharovas geola digital uab, naugarduko str. Coherent holography records the complex amplitude of a 3d object holographically, giving speckle noise upon reconstruction and presenting a serious drawback inherent in coherent optical systems. Subaperture stitching in digital holography dh is a very important issue both for the spatial resolution improvement as well as for measuring larger aperture through synthetic enlargement of numerical aperture. Analysis in digital holography under the supervision presented by of b.
Osa digital recording and reconstruction of holograms in. In the process of reconstruction the digitally sampled holograms are applied to the different. Digital holography comes in different flavors, such as offaxis fresnel, fourier, image plane, inline, gabor and phaseshifting digital holography, 2 depending on the optical setup. The next half discusses specific strategies just like digital lightinflight holography, holographic endoscopy, information encrypting and comparative holography. References 1 schnars u and jueptner w 2005 digital holography berlin. Three dimensional object analysis and tracking by cedric schockaert, vdm verlag 2009. Osa stitching subaperture in digital holography based. The introduction of a coupled charged device ccd camera to record fresnel holograms suppresses the recording on media such as photographic plate, photopolymers and photorefractives. Digital holography and wavefront sensing principles. The optical system is capable of microscopic holography with diffractionlimited resolution by. Digital holography digital hologram recording, numerical.
Digital holography is an emerging field of new paradigm in general imaging applications. The hologram results from the interference between two wave fronts, one reflected or transmitted by the. Digital inline holography to quantify secondary droplets. Inside the remaining chapter related strategies of speckle metrology are dealt with briefly. Kim we apply the techniques of digital holography to obtain microscopic threedimensional images of biological cells. Digital hologram recording, numerical reconstruction, and related techniques. Microparticle characterization using digital holography. In the process of reconstruction the digitally sampled holograms are applied to the different coherent optical methods as hologram interferometry and shearography. Thus holography does not encounter the problem of outoffocus particles as classical imaging tools. They enable wave field sensing without the requirement of a particular reference wave, thus allowing the use of low brilliance light sources and even. The introduction of a coupled charged device ccd camera to record fresnel holograms suppresses the recording on media such as photographic. The authors establish a synthetic state of the art of important advances in the field of digital holography. Image rendering, or reconstruction of object data is performed numerically from digitized interferograms. The application of digital holography for particle analysis has been discussed in literature xu et al.
In addition, a novel gsbased algorithm that allows reconstruction of 3d samples is demonstrated. By digital holography the intensity and the phase of electromagnetic wave. Unlike photography, holography records both, the amplitude and the phase information or rather the height information. Digital holography, inline inspection, phase retrieval, parallel computing, gpu. An experimental setup for terahertz inline digital holography is depicted in. Digital holographic microscopy with dualwavelength phase unwrapping daniel parshall and myung k. In comparison with classical film based holography, the use of digital holography is more attractive due to the ease of setup and recording process using a digital camera schnars and juptner, 2005, frauel et al. The object is recorded in two different states, and the holograms are stored electronically with a chargecoupleddevice detector.
Digital holography using a laser pointer and consumer. Digital holography, in line holography, complex amplitude, particle tracking velocimetry, speckles noise introduction holography is a 3d imaging process that instantaneously captures the volumetric information of a test object. A special chapter is designated to digital holographic interferometry with applications in deformation and shape measurement and refractive index determination. These techniques represent a fascinating alternative to standard interferometry and digital holography. Digital holography microscopy free download as powerpoint presentation.
Can viable holograms be recorded using an ordinary diode laser pointer and a consumer digital camera. Introduction first experiments in numerical reconstruction of optical holograms date back to 196070th. Principles and applications by tingchung poon editor, springer 2006 digital holography microscopy applications. Digital holographic microscopy with dualwavelength phase.
A new chapter now deals comprehensively and extensively with computational wave field sensing. On the digital holographic interferometry of fibrous material, i. This book presents a selfcontained treatment of the principles and major applications of digital hologram recording and numerical reconstruction digital holography. Suppression of dc term in fresnel digital holography by. In the process of reconstruction the digitally sampled holograms are applied to the different coherent optical methods as hologram interferometry and. In 1994 the modern digital holography was in troduced schnars, 1994.
Recent advances in digital holography invited article pdf available in applied optics 5327 september 2014 with 2,282 reads how we measure reads. In the last chapter related techniques of speckle metrology are treated briefly. The paperback of the digital holography and wavefront sensing. Digital holography and its multidimensional imaging. Goethe, faust an old dream of mankind and a sign of culture is the conservation of moments by taking an image of the world around. Osa iterative phase retrieval for digital holography.
Digital hologram recording, numerical reconstruction, and related techniques schnars, ulf, juptner, werner on. Kim university of south florida, department of physics, 4202 e. On the digital holographic interferometry of fibrous. Principles and techniques of digital holographic microscopy.
The spacebandwidthproblem occuring in this context is addressed and first partial solutions are presented. The theory and the method of digital holography and its application have been. Several recording and processing schemes have been developed to assess optical wave characteristics such as amplitude, phase, and polarization state, which make digital holography a very powerful method. Ulf schnars, werner po juptner measurement science and technology. Digital holography 1 has been attracting intensive research efforts during recent years due to its potentials in automated highresolution deformation measurement 23 and shape analysis 4, microscopic imaging and testing 5, as well as information transfer, storage and display. Digital holography the intensity and the phase of electromagnetic wave. Jueptner, springer 2005 digital holography and threedimensional display.