Download or read book Manipulating Microscopic Objects A Study on Optical Tweezers and Acoustic Levitation written by Marius Martin and published by . This book was released on 2023-03-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2023 in the subject Physics - Applied physics, University of Aberdeen, language: English, abstract: This thesis investigates two powerful techniques for manipulating and studying microscopic particles: optical tweezers and acoustic levitation. Optical tweezers use the force of light to trap and manipulate small particles, while acoustic levitation uses sound waves to levitate particles in mid-air. The first part of the thesis focuses on the construction and optimization of an optical tweezers system. The system is build using high-powered laser, optics for focusing the laser beam, and a position detection and control system. the second part of this thesis explores the use of acoustic levitation for the manipulation of micro spheres. The acoustic levitation system is designed and constructed using 72 transducers. The system is characterized using measurements of the acoustic field and the resulting levitation forces. The levitation of micro spheres is demonstrated. This thesis would provide a detailed investigation of two powerful techniques for the manipulation of microscopic particles.
Download or read book Manipulating Microscopic Objects A Study on Optical Tweezers and Acoustic Levitation written by Marius Martin and published by GRIN Verlag. This book was released on 2023-03-30 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2023 in the subject Physics - Applied physics, University of Aberdeen, language: English, abstract: This thesis investigates two powerful techniques for manipulating and studying microscopic particles: optical tweezers and acoustic levitation. Optical tweezers use the force of light to trap and manipulate small particles, while acoustic levitation uses sound waves to levitate particles in mid-air. The first part of the thesis focuses on the construction and optimization of an optical tweezers system. The system is build using high-powered laser, optics for focusing the laser beam, and a position detection and control system. the second part of this thesis explores the use of acoustic levitation for the manipulation of micro spheres. The acoustic levitation system is designed and constructed using 72 transducers. The system is characterized using measurements of the acoustic field and the resulting levitation forces. The levitation of micro spheres is demonstrated. This thesis would provide a detailed investigation of two powerful techniques for the manipulation of microscopic particles.
Download or read book Optical Trapping and Manipulation written by Philip Jones and published by MDPI. This book was released on 2020-11-25 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are pleased to present “Optical Trapping and Manipulation: From Fundamentals to Applications”, a Special Issue of Micromachines dedicated to the latest research in optical trapping. In recognition of the broad impact of optical manipulation techniques across disciplines, this Special Issue collected contributions related to all aspects of optical trapping and manipulation. Both theoretical and experimental studies were welcome, and applications of optical manipulation methods in fields including (but not limited to) single molecule biophysics, cell biology, nanotechnology, atmospheric chemistry, and fundamental optics were particularly welcome in order to showcase the breadth of the current research. The Special Issue accepted diverse forms of contributions, including research papers, short communications, methods, and review articles representing the state-of-the-art in optical trapping.
Download or read book Optical Tweezers written by Philip H. Jones and published by Cambridge University Press. This book was released on 2015-12-03 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to the theory, practice and applications of optical tweezers, combining state-of-the-art research with a strong pedagogic approach.
Download or read book Fiber Based Optical Trapping and Manipulation written by Baojun Li and published by Nova Science Publishers. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its first report in 1970 by A. Ashkin, optical trapping and manipulation has been widely used in the interdisciplines of micro- and nano-photonics, biophotonics, biomedicine, etc. A conventional tool for optical trapping and manipulation is the conventional optical tweezer (COT), the core part of which is a free-space focused laser beam. However, manipulation with COTs has some limitations such as manipulation inflexibility, bulky structure, diffraction limitation for nanoparticles, and limited integration functions. The introduction of optical fiber-based optical trapping and manipulation has solved these limitations. Using optical fibers with different configurations, optical trapping and manipulation with multiple functions can be realised with high flexibility, precision, and integration. By launching laser beams with different wavelengths into the fiber, both the photothermal effect and optical force can be used for optical trapping and manipulation. For the optical force manipulation, both evanescent fields at the surface of a subwavelength optical fiber and light output from a fiber end can be used for optical manipulation. The manipulation with light output from a fiber end can be divided into dual fiber tweezers and single fiber tweezers. For single fiber tweezers, one can realise the stable trapping of single particles both in a contact and non-contact manner for further applications. In addition, single fiber tweezers can also be used for multiple particle trapping and cell assembly, which can further be used for the assembly of biophotonic components and devices. Furthermore, by placing microparticles, which act as microlens at the end facet of an optical fiber, the microlens can be served as a photonic nanojet. This fiber supported photonic nanojet can be easily used for the trapping and detection of nanoparticles and biomolecules. Optical fiber-based optical trapping and manipulation have the advantages of easy fabrication, compact configuration, flexible manipulation, easy integration, wide applicability, etc., which provides for a wide application of prospects in micro- and nano-photonics, biophotonics, and biomedicine.
Download or read book Microrobotics for Micromanipulation written by Nicolas Chaillet and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microrobotics is an emerging and booming area with many and various applications, including in fields such as industrial/manufacturing robotics, medical robotics, and laboratory instrumentation. Microrobotics for Micromanipulation presents for the first time, in detail, a treatment of the field of robotics dedicated to handling objects of micrometer dimensions. At these dimensions, the behavior of objects is significantly different from the better known, larger scales, which leads to implementation techniques that can be radically different from the more commonly used solutions. This book details the behaviors of objects at the micrometer scale and provides robotics solutions that are suitable, in terms of actuators, grippers, manipulators, environmental perception, and microtechnology. Worked examples are included in the book - enabling engineers, students and researchers to familiarize themselves with this emerging area and to contribute to its development.
Download or read book Optical Trapping and Manipulation of Neutral Particles Using Lasers written by Arthur Ashkin and published by World Scientific. This book was released on 2006-12-29 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important volume contains selected papers and extensive commentaries on laser trapping and manipulation of neutral particles using radiation pressure forces. Such techniques apply to a variety of small particles, such as atoms, molecules, macroscopic dielectric particles, living cells, and organelles within cells. These optical methods have had a revolutionary impact on the fields of atomic and molecular physics, biophysics, and many aspects of nanotechnology. In atomic physics, the trapping and cooling of atoms down to nanokelvins and even picokelvin temperatures are possible. These are the lowest temperatures in the universe. This made possible the first demonstration of Bose–Einstein condensation of atomic and molecular vapors. Some of the applications are high precision atomic clocks, gyroscopes, the measurement of gravity, cryptology, atomic computers, cavity quantum electrodynamics and coherent atom lasers. A major application in biophysics is the study of the mechanical properties of the many types of motor molecules, mechanoenzymes, and other macromolecules responsible for the motion of organelles within cells and the locomotion of entire cells. Unique in vitro and in vivo assays study the driving forces, stepping motion, kinetics, and efficiency of these motors as they move along the cell's cytoskeleton. Positional and temporal resolutions have been achieved, making possible the study of RNA and DNA polymerases, as they undergo their various copying, backtracking, and error correcting functions on a single base pair basis. Many applications in nanotechnology involve particle and cell sorting, particle rotation, microfabrication of simple machines, microfluidics, and other micrometer devices. The number of applications continues to grow at a rapid rate. The author is the discoverer of optical trapping and optical tweezers. With his colleagues, he first demonstrated optical levitation, the trapping of atoms, and tweezer trapping and manipulation of living cells and biological particles. This is the only review volume covering the many fields of optical trapping and manipulation. The intention is to provide a selective guide to the literature and to teach how optical traps really work. Contents:Optical LevitationTrapping of Atoms and Biological Particles in the 1980–1990 DecadeUse of Optical Tweezers to Study Single Motor MoleculesOrigin of Tweezer Forces on Macroscopic Particles Using Highly Focused BeamsRotation of Particles by Radiation PressureMicrochemistryUses of Slow AtomsRole of All-Optical Traps and MOTs in Atomic PhysicsFeshbach ResonancesVortices and Frictionless Flow in Bose–Einstein CondensatesTrapped Fermi Gasesand other papers Readership: Researchers and students of atomic physics, molecular physics, biophysics and nanotechnology; historians of science. Keywords:
Download or read book Microscale Acoustofluidics written by Thomas Laurell and published by Royal Society of Chemistry. This book was released on 2014-12-08 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manipulation of cells and microparticles within microfluidic systems using external forces is valuable for many microscale analytical and bioanalytical applications. Acoustofluidics is the ultrasound-based external forcing of microparticles with microfluidic systems. It has gained much interest because it allows for the simple label-free separation of microparticles based on their mechanical properties without affecting the microparticles themselves. Microscale Acoustofluidics provides an introduction to the field providing the background to the fundamental physics including chapters on governing equations in microfluidics and perturbation theory and ultrasound resonances, acoustic radiation force on small particles, continuum mechanics for ultrasonic particle manipulation, and piezoelectricity and application to the excitation of acoustic fields for ultrasonic particle manipulation. The book also provides information on the design and characterization of ultrasonic particle manipulation devices as well as applications in acoustic trapping and immunoassays. Written by leading experts in the field, the book will appeal to postgraduate students and researchers interested in microfluidics and lab-on-a-chip applications.
Download or read book Micromanipulation by Light in Biology and Medicine written by Karl Otto Greulich and published by Birkhauser. This book was released on 1999 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Optical Trapping and Optical Micromanipulation written by Kishan Dholakia and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study on Moving Objects Representation and Reasoning written by Yuniel Proenza and published by GRIN Verlag. This book was released on 2015-12-07 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Essay from the year 2015 in the subject Business economics - Information Management, grade: 7.0, , language: English, abstract: There are some researches that explore and help to solve the representation of moving objects, mainly focused on improving DBMS and Query Languages for support spatio-temporal information storing and processing. Some other researches present techniques to analyze trajectories using data mining, indexing and math operations. More recently, with the emergence of the Semantic Web, the tracking of trajectories of moving objects became a fully applicational field and an open area for ontology applications. This paper explores moving objects representation and reasoning, aiming to find out foundations for a semantic representation of moving objects approach, for solving some existing problems when considering spatio-temporal aspects and semantically enrich query results over any stored information of moving objects.
Download or read book Field Driven Micro and Nanorobots for Biology and Medicine written by Yu Sun and published by Springer Nature. This book was released on 2021-11-25 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the substantial progress recently made in the development of micro and nanorobotic systems, utilizing magnetic, optical, acoustic, electrical, and other actuation fields. It covers several areas of micro and nanorobotics including robotics, materials science, and biomedical engineering. Field-Driven Micro and Nanorobots for Biology and Medicine provides readers with fundamental physics at the micro and nano scales, state-of-the-art technical advances in field-driven micro and nanorobots, and applications in biological and biomedical disciplines.
Download or read book 7th International Conference on the Development of Biomedical Engineering in Vietnam BME7 written by Vo Van Toi and published by Springer. This book was released on 2019-06-05 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the proceedings of the 7th International Conference on the Development of Biomedical Engineering in Vietnam which was held from June 27-29, 2018 in Ho Chi Minh City. The volume reflects the progress of Biomedical Engineering and discusses problems and solutions. It aims to identify new challenges, and shaping future directions for research in biomedical engineering fields including medical instrumentation, bioinformatics, biomechanics, medical imaging, drug delivery therapy, regenerative medicine and entrepreneurship in medical devices.
Download or read book Optical Tweezers written by Philip H. Jones and published by . This book was released on 2015 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Optical Fibers written by Gang-Ding Peng and published by Springer. This book was released on 2019-08-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research- and application-oriented book covers main topical areas of optical fibers. The selection of the chapters is weighted on technological and application-specific topics, very much a reflection of where research is heading to and what researchers are looking for. Chapters are arranged in a user-friendly format essentially self-contained and with extensive cross-references. They are organized in the following sections: - Optical Fiber Communication | Editors: Ming-Jun Li and Chao Lu - Solitons and Nonlinear Waves in Optical Fibers | Editor: Boris A. Malomed - Optical Fiber Fabrication | Editor: Hairul Azhar Bin Abdul Rashid - Active Optical Fibers | Editor: Kyunghwan Oh - Special Optical Fibers | Editors: Perry Shum and Zhilin Xu - Optical Fiber Measurement | Editor: Jianzhong Zhang - Optical Fiber Devices | Editors: John Canning and Tuan Guo - Optical Fiber Device Measurement | Editor: Yanhua Luo - Distributed Optical Fiber Sensing | Editor: Yosuke Mizuno - Optical Fiber Sensors for Industrial Applications | Editor: Tong Sun OBE - Polymer Optical Fiber Sensing | Editor: Ginu Rajan - Photonic Crystal Fiber Sensing | Editor: D. N. Wang - Optical Fiber Microfluidic Sensors | Editor: Yuan Gong
Download or read book Structured Light Fields written by Mike Wördemann and published by Springer Science & Business Media. This book was released on 2012-05-16 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: The optical trapping of colloidal matter is an unequalled field of technology for enabling precise handling of particles on microscopic scales, solely by the force of light. Although the basic concept of optical tweezers, which are based on a single laser beam, has matured and found a vast number of exciting applications, in particular in the life sciences, there are strong demands for more sophisticated approaches. This thesis gives an introductory overview of existing optical micromanipulation techniques and reviews the state-of-the-art of the emerging field of structured light fields and their applications in optical trapping, micromanipulation, and organisation. The author presents established, and introduces novel concepts for the holographic and non-holographic shaping of a light field. A special emphasis of the work is the demonstration of advanced applications of the thus created structured light fields in optical micromanipulation, utilising various geometries and unconventional light propagation properties. While most of the concepts developed are demonstrated with artificial microscopic reference particles, the work concludes with a comprehensive demonstration of optical control and alignment of bacterial cells, and hierarchical supramolecular organisation utilising dedicated nanocontainer particles.
