The authors have extended the chapter on digital holographic microscopy to incorporate new sections on particle sizing, particle image velocimetry and underwater holography. The phases of the stored light waves can be calculateddirectly from the digital holograms, without. Applications in imaging and microscopy are also described. Ulf schnars, werner po juptner measurement science and technology. Digital holography digital hologram recording, numerical. Digital holography and its multidimensional imaging. Numerical reconstruction is achieved by calculating the diffraction of the monochromatic. Digital holography offers a means of measuring optical phase data and typically delivers threedimensional surface or optical thickness images. In 1994 the modern digital holography was in troduced schnars, 1994. 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. Digital holography conor mc elhinney deptartment of computer science, national university of ireland, maynooth. 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. Kim we apply the techniques of digital holography to obtain microscopic threedimensional images of biological cells. Digital holography is an emerging field of new paradigm in general imaging applications.
Osa stitching subaperture in digital holography based. Osa iterative phase retrieval for digital holography. Principles and techniques of digital holographic microscopy myung k. They enable wave field sensing without the requirement of a particular reference wave, thus allowing the use of low brilliance light sources and even. Pulsed fullcolor digital holography with a raman shifter. Jueptner, springer 2005 digital holography and threedimensional display. Basic principles of diffraction and general holography are outlined in sec. 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. Microparticle characterization using digital holography. Digital holography and wavefront sensing principles.
Digital hologram recording, numerical reconstruction, and related techniques by ulf schnars. Inside the remaining chapter related strategies of speckle metrology are dealt with briefly. So they use holographic displays to show the hologram, depending on a high level of computation. Suppression of dc term in fresnel digital holography by. Digital holography microscopy holography spectral density. 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.
Feb 23, 2011 digital holography conor mc elhinney deptartment of computer science, national university of ireland, maynooth. Digital holography, inline inspection, phase retrieval, parallel computing, gpu. This highly practical and selfcontained guidebook explains the principles and major applications of digital hologram recording and numerical reconstruction digital holography. The digital holography can be defined as digital recording of the holograms and the numerical. The authors establish a synthetic state of the art of important advances in the field of digital holography. In the process of reconstruction the digitally sampled holograms are applied to the different coherent optical methods as hologram interferometry and. Digital inline holography dih is an optical technique in which a collimated laser illuminates an object. Optical and digital methods by thomas kreis, wiley 2004 digital holography by u. Digital holographic microscopy with dualwavelength phase unwrapping daniel parshall and myung k. The gsbased algorithms recover a complexvalued wavefront using wavefront backandforth propagation between two planes with constraints. Digital holography microscopy free download as powerpoint presentation. In addition, a novel gsbased algorithm that allows reconstruction of 3d samples is demonstrated.
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 holographic microscopy with dualwavelength phase. The authors have extended the chapter on digital holographic. Digital holography and wavefront sensing springerlink.
Analysis in digital holography under the supervision presented by of b. These techniques represent a fascinating alternative to standard interferometry and digital holography. Digital holography refers to the acquisition and processing of holograms with a digital sensor array, typically a ccd camera or a similar device. The hologram results from the interference between two wave fronts, one reflected or transmitted by the object and the other is the reference. Digital holography using a laser pointer and consumer digital. However, a picture is the twodimensional projection. Schnars and juptner applied their method to interferome try and demonstrated that digital. Digital recording and numerical reconstruction of holograms.
Pdf digital recording and numerical reconstruction of holograms. The resulting diffraction pattern is digitally recorded, and numerical reconstruction of the volumetric. Osa digital recording and reconstruction of holograms in. Synthetic aperture singleexposure onaxis digital holography.
Advances in digital holography stanislovas z acharovas geola digital uab, naugarduko str. 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 using a laser pointer and consumer. Digital holography is applied to measure shape and surface deformation of.
Schnars and juptner applied their method to interferome. Principles, methods, algorithms by leonid yaroslavsky, kluwer 2004 handbook of holographic interferometry. Can viable holograms be recorded using an ordinary diode laser pointer and a consumer digital camera. An experimental setup for terahertz inline digital holography is depicted in. The next part discusses special techniques such as digital lightinflight holography, holographic endoscopy, information encrypting and comparative holography. Digital holographic interferometric characterization of. In digital holography, the pixel size of ccd and cmos should be less than the spatial. 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. The optical system is capable of microscopic holography with diffractionlimited resolution by. Image rendering, or reconstruction of object data is performed numerically from digitized interferograms. This book presents a selfcontained treatment of the principles and major applications of digital hologram recording and numerical reconstruction digital holography. Digital hologram recording, numerical reconstruction, and related techniques schnars, ulf, juptner, werner on. Digital inline holography to quantify secondary droplets. This paper provides a tutorial of iterative phase retrieval algorithms based on the gerchbergsaxton gs algorithm applied in digital holography.
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. Digital holography dh is a promising technique for modern threedimensional 3d imaging. A new chapter now deals comprehensively and extensively with computational wave field sensing. Thus holography does not encounter the problem of outoffocus particles as classical imaging tools. 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. The paperback of the digital holography and wavefront sensing. 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. Three dimensional object analysis and tracking by cedric schockaert, vdm verlag 2009. Principles and techniques of digital holographic microscopy. This second edition has been significantly revised and enlarged. In the last chapter related techniques of speckle metrology are treated briefly. In the present study, we imaged cancerous tissues using inline holography.
The next half discusses specific strategies just like digital lightinflight holography, holographic endoscopy, information encrypting and comparative holography. Digital recording and reconstruction of holograms in hologram. Kim university of south florida, department of physics, 4202 e. On the digital holographic interferometry of fibrous. Digital holography the intensity and the phase of electromagnetic wave. A special chapter is designated to digital holographic interferometry with applications in deformation and shape measurement and refractive index determination. The hologram results from the interference between two wave fronts, one reflected or transmitted by the. Digital hologram recording, numerical reconstruction, and related techniques. Digital holography yarovslavskii, 1980 is a lensless imaging method in which a hologram is recorded with a ccdcamera and reconstructed numerically. Introduction holography is used to precisely measure 3d structures of surfaces. 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.
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 spacebandwidthproblem occuring in this context is addressed and first partial solutions are presented. The object is recorded in two different states, and the holograms are stored electronically with a chargecoupleddevice detector. Unlike photography, holography records both, the amplitude and the phase information or rather the height information. Digital holography digital holography yarovslavskii, 1980 is a lensless imaging method in which a hologram is recorded with a ccdcamera and reconstructed numerically. Optical properties of polymer and optical fibers k. The theory and the method of digital holography and its application have been.
Juptner, digital recoding and reconstruction of holograms in. Principles and applications by tingchung poon editor, springer 2006 digital holography microscopy applications. 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. Electro holography aims to be interactive or even realtime and flexible. Digital hologram recording, numerical reconstruction, and related. On the digital holographic interferometry of fibrous material, i. In the process of reconstruction the digitally sampled holograms are applied to the different coherent optical methods as hologram interferometry and shearography.
References 1 schnars u and jueptner w 2005 digital holography berlin. If youre looking for a free download links of digital holography pdf, epub, docx and torrent then this site is not for you. 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. 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. The fundamentals of digital recording and mathematical reconstruction of fresnel holograms are described. Offers a comprehensive introduction to modern applications of holography in the diverse areas of measurement and imaging. Introduction first experiments in numerical reconstruction of optical holograms date back to 196070th. At that time, scanning devices that could be used for digitizing.