Download or read book Digital Heterodyne Holography for Plasmonic Nanostructures written by Sarah Yasmine Suck and published by . This book was released on 2011 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans cette thèse, nous étudions les caractéristiques de diffusion de nanostructures plasmoniques tout en adaptant et améliorant l'holographie hétérodyne numérique, qui est une technique d'imagerie plein champ pour mesurer en trois dimensions le diagramme de rayonnement. En outre, nous avons effectué de nombreuses mesures spectroscopiques pour enregistrer les spectres de diffusion de nanoobjets uniques. Afin d'obtenir une compréhension plus profonde des caractéristiques du champ diffusé que nous mesurons, nous avons développé un modèle numérique basé sur la méthode des éléments finis. Ce modèle nous a permis de simuler le champ proche et le champ lointain d'une nanostructure avec une onde incidente en réflexion ou en transmission. Nous obtenons un excellent accord entre nos résultats expérimentaux et calculés. Dans cette thèse, nous avons étudié de nombreux nanostructures d'or fabriquées sur du verre par lithographie électronique. Des structures simples nous ont permis de valider la technique. Des objets plus sophistiques nous ont ensuite permis de constater que leur diagramme de diffusion est extrêmement sensible aux facteurs externes et internes, tels que la polarisation et la longueur d'onde de la lumière incidente ou la géométrie de la structure et sa longueur d'onde de résonance. En outre, nous montrons que la technique de l'holographie hétérodyne photothermique mesure directement l'augmentation de la température, et ainsi, se présente comme une nouvelle méthode pour étudier la distribution de la chaleur dans des nanostructures plasmoniques.
Download or read book New Techniques in Digital Holography written by Pascal Picart and published by John Wiley & Sons. This book was released on 2015-02-23 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state of the art presentation of important advances in the field of digital holography, detailing advances related to fundamentals of digital holography, in-line holography applied to fluid mechanics, digital color holography, digital holographic microscopy, infrared holography, special techniques in full field vibrometry and inverse problems in digital holography
Download or read book Digital Holographic Microscopy written by Myung K. Kim and published by Springer Science & Business Media. This book was released on 2011-08-09 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital holography is an emerging field of new paradigm in general imaging applications. The book presents an introduction to the theoretical and numerical principles and reviews the research and development activities in digital holography, with emphasis on the microscopy techniques and applications. Topics covered include the general theory of diffraction and holography formations, and practical instrumentation and experimentation of digital holography. Various numerical techniques are described that give rise to the unique and versatile capabilities of digital holography. Representative special techniques and applications of digital holography are discussed. The book is intended for researchers interested in developing new techniques and exploring new applications of digital holography.
Download or read book Digital Holographic Methods written by Stephan Stuerwald and published by Springer. This book was released on 2018-10-12 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents not only the simultaneous combination of optical methods based on holographic principles for marker-free imaging, real-time trapping, identification and tracking of micro objects, but also the application of substantial low coherent light sources and non-diffractive beams. It first provides an overview of digital holographic microscopy (DHM) and holographic optical tweezers as well as non-diffracting beam types for minimal-invasive, real-time and marker-free imaging as well as manipulation of micro and nano objects. It then investigates the design concepts for the optical layout of holographic optical tweezers (HOTs) and their optimization using optical simulations and experimental methods. In a further part, the book characterizes the corresponding system modules that allow the addition of HOTs to commercial microscopes with regard to stability and diffraction efficiency. Further, based on experiments and microfluidic applications, it demonstrates the functionality of the combined setup, and discusses several types of non-diffracting beams and their application in optical manipulation. The book shows that holographic optical tweezers, including several non-diffracting beam types like Mathieu beams, combined parabolic and Airy beams, not only open up the possibility of generating efficient multiple dynamic traps for micro and nano particles with forces in the pico and nano newton range, but also the opportunity to exert optical torque with special beams like Bessel beams, which can facilitate the movement and rotation of particles by generating microfluidic flows. The last part discusses the potential use of a slightly modified DHM-HOT-system to explore the functionality of direct laser writing based on a two photon absorption process in a negative photoresist with a continuous wave laser
Download or read book Handbook of Holographic Interferometry written by Thomas Kreis and published by John Wiley & Sons. This book was released on 2006-04-20 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the principles and methods of holographic interferometry - a coherent-optical measurement technique for deformation and stress analysis, for the determination of refractive-index distributions, or applied to non-destructive testing. Emphasis of the book is on the quantitative computer-aided evaluation of the holographic interferograms. Based upon wave-optics the evaluation methods, their implementation in computer-algorithms, and their applications in engineering are described.
Download or read book Digital Holography written by Ulf Schnars and published by Springer Science & Business Media. This book was released on 2005-12-08 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly practical and self-contained guidebook explains the principles and major applications of digital hologram recording and numerical reconstruction (Digital Holography). A special chapter is designated to digital holographic interferometry with applications in deformation and shape measurement and refractive index determination. Applications in imaging and microscopy are also described. Spcial techniques such as digital light-in-flight holography, holographic endoscopy, information encrypting, comparative holography, and related techniques of speckle metrology are also treated
Download or read book Metasurface Holography written by Zi-Lan Deng and published by Springer Nature. This book was released on 2022-05-31 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The merging of metasurface and holography brings about unprecedented opportunities for versatile manipulation of light in terms of both far-field wavefront and near-field profile. In this book, a brief evolving history from surface plasmon polariton holography to metamaterial holography and finally to metasurface holography is introduced at first. Basic physical mechanisms that govern the phase modulation rules behind metasurface holography design are discussed later. Next, extended functionalities such as arbitrary polarization holography, vectorial holography, full-color holography, and hybrid holography achieved in the metasurface platform are presented. Surface wave and metagrating holography that bridges the on-chip surface wave and free-space wave is also introduced. In the end, we envisage practical applications of high-fidelity 3D holographic display, high-secure encryption, and high capacity digital encoding and also indicate remaining challenges based on metasurface holography.
Download or read book Simulated Electronic Heterodyne Recording and Processing of Pulsed laser Holograms written by Arthur J. Decker and published by . This book was released on 1979 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Digital Holography for MEMS and Microsystem Metrology written by Anand Asundi and published by John Wiley & Sons. This book was released on 2011-07-05 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approaching the topic of digital holography from the practical perspective of industrial inspection, Digital Holography for MEMS and Microsystem Metrology describes the process of digital holography and its growing applications for MEMS characterization, residual stress measurement, design and evaluation, and device testing and inspection. Asundi also provides a thorough theoretical grounding that enables the reader to understand basic concepts and thus identify areas where this technique can be adopted. This combination of both practical and theoretical approach will ensure the book's relevance and appeal to both researchers and engineers keen to evaluate the potential of digital holography for integration into their existing machines and processes. Addresses particle characterization where digital holography has proven capability for dynamic measurement of particles in 3D for sizing and shape characterization, with applications in microfluidics as well as crystallization and aerosol detection studies. Discusses digital reflection holography, digital transmission holography, digital in-line holography, and digital holographic tomography and applications. Covers other applications including micro-optical and diffractive optical systems and the testing of these components, and bio-imaging.
Download or read book Introduction to Modern Digital Holography written by Ting-Chung Poon and published by Cambridge University Press. This book was released on 2014-01-23 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get up to speed with digital holography with this concise and straightforward introduction to modern techniques and conventions. Building up from the basic principles of optics, this book describes key techniques in digital holography, such as phase-shifting holography, low-coherence holography, diffraction tomographic holography and optical scanning holography, discussing their practical applications, and accompanied by all the theory necessary to understand the underlying principles at work. A further chapter covers advanced techniques for producing computer-generated holograms. Extensive Matlab code is integrated with the text throughout and available for download online, illustrating both theoretical results and practical considerations such as aliasing, zero padding and sampling. Accompanied by end-of-chapter problems and an online solutions manual for instructors, this is an indispensable resource for students, researchers and engineers in the fields of optical image processing and digital holography.
Download or read book Digital Holography and Wavefront Sensing written by Ulf Schnars and published by Springer. This book was released on 2014-09-19 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly practical and self-contained guidebook explains the principles and major applications of digital hologram recording and numerical reconstruction (Digital Holography). A special chapter is designated to digital holographic interferometry with applications in deformation and shape measurement and refractive index determination. Applications in imaging and microscopy are also described. Spcial techniques such as digital light-in-flight holography, holographic endoscopy, information encrypting, comparative holography, and related techniques of speckle metrology are also treated
Download or read book Label Free Super Resolution Microscopy written by Vasily Astratov and published by Springer Nature. This book was released on 2019-08-31 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the advances in super-resolution microscopy in physics and biomedical optics for nanoscale imaging. In the last decade, super-resolved fluorescence imaging has opened new horizons in improving the resolution of optical microscopes far beyond the classical diffraction limit, leading to the Nobel Prize in Chemistry in 2014. This book represents the first comprehensive review of a different type of super-resolved microscopy, which does not rely on using fluorescent markers. Such label-free super-resolution microscopy enables potentially even broader applications in life sciences and nanoscale imaging, but is much more challenging and it is based on different physical concepts and approaches. A unique feature of this book is that it combines insights into mechanisms of label-free super-resolution with a vast range of applications from fast imaging of living cells to inorganic nanostructures. This book can be used by researchers in biological and medical physics. Due to its logically organizational structure, it can be also used as a teaching tool in graduate and upper-division undergraduate-level courses devoted to super-resolved microscopy, nanoscale imaging, microscopy instrumentation, and biomedical imaging.
Download or read book Methods of Digital Holography written by Леонид Пинхусович Ярославский and published by Springer. This book was released on 1980 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis of holograms; Wavefront analysis and simulation; Hardware and software.
Download or read book Spatially Heterodyned Holography written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of recording a spatially low-frequency heterodyne hologram, including spatially heterodyne fringes for Fourier analysis, includes: splitting a laser beam into a reference beam and an object beam; interacting the object beam with an object; focusing the reference beam and the object beam at a focal plane of a digital recorder to form a spatially low-frequency heterodyne hologram including spatially heterodyne fringes for Fourier analysis; digital recording the spatially low-frequency heterodyne hologram; Fourier transforming axes of the recorded spatially low-frequency heterodyne hologram including spatially heterodyne fringes in Fourier space to sit on top of a heterodyne carrier frequency defined by an angle between the reference beam and the object beam; cutting off signals around an origin; and performing an inverse Fourier transform.
Download or read book Optical Holography written by Pierre-Alexandre Blanche and published by Elsevier. This book was released on 2019-10-23 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Holography: Materials, Theory and Applications provides researchers the fundamentals of holography through diffraction optics and an overview of the most relevant materials and applications, ranging from computer holograms to holographic data storage. Dr. Pierre Blanche leads a team of thought leaders in academia and industry in this practical reference for researchers and engineers in the field of holography. This book presents all the information readers need in order to understand how holographic techniques can be applied to a variety of applications, the benefits of those techniques, and the materials that enable these technologies. Researchers and engineers will gain comprehensive knowledge on how to select the best holographic techniques for their needs. - Covers current applications of holographic techniques in areas such as 3D television, solar concentration, non-destructive testing and data storage - Describes holographic recording materials and their most relevant applications - Provides the fundamentals of holography and diffraction optics
Download or read book Holographic Materials and Optical Systems written by Izabela Naydenova and published by BoD – Books on Demand. This book was released on 2017-03-22 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holographic Materials and Optical Systems covers recent research achievements in the areas of volume holographic optical elements and systems, development of functionalized holographic recording materials, and applications in holographic imaging and metrology. Designs of single and multiplexed volume holographic optical elements for laser beam shaping, combining, and redirection are covered, and their properties are studied theoretically and experimentally. The high impact of holography in imaging and metrology is demonstrated by applications spreading from thickness and surface measurements, through antenna metrology and analyzing high-density gradients in fluid mechanics to characterization of live objects in clinical diagnostics. Novel functionalized materials used in dynamic or permanent holographic recording cover photopolymers, photochromics, photo-thermo-refractive glasses, and hybrid organic-inorganic media.
Download or read book Digital Holography written by Pascal Picart and published by John Wiley & Sons. This book was released on 2013-01-24 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a substantial description of the principles and applications of digital holography. The first part of the book deals with mathematical basics and the linear filtering theory necessary to approach the topic. The next part describes the fundamentals of diffraction theory and exhaustively details the numerical computation of diffracted fields using FFT algorithms. A thorough presentation of the principles of holography and digital holography, including digital color holography, is proposed in the third part. A special section is devoted to the algorithms and methods for the numerical reconstruction of holograms. There is also a chapter devoted to digital holographic interferometry with applications in holographic microscopy, quantitative phase contrast imaging, multidimensional deformation investigations, surface shape measurements, fluid mechanics, refractive index investigations, synthetic aperture imaging and information encrypting. Keys so as to understand the differences between digital holography and speckle interferometry and examples of software for hologram reconstructions are also treated in brief. Contents 1. Mathematical Prerequisites. 2. The Scalar Theory of Diffraction. 3. Calculating Diffraction by Fast Fourier Transform. 4. Fundamentals of Holography. 5. Digital Off-Axis Fresnel Holography. 6. Reconstructing Wavefronts Propagated through an Optical System. 7. Digital Holographic Interferometry and Its Applications. Appendix. Examples of Digital Hologram Reconstruction Programs
