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Author: Victor V. Kotlyar
Publisher: CRC Press
ISBN: 1000711250
Category : Technology & Engineering
Languages : en
Pages : 323
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Book Description
Readers will learn in which ways light can be "confined" within a subwavelength region smaller than half a wavelength. Strictly within the focal spot, all degrees of freedom of light interact and manifest themselves in a dramatic way. The size and shape of the focal spot and the magnitude of side-lobes depend on the polarization state alongside phase and amplitude distributions of a light beam. Readers will learn techniques in which inhomogeneously (i.e., azimuthally and radially) polarized optical beams can be focused. In sharp focus, exotic phenomena can occur, including the negative propagation of light and a toroidal optical flow. Throughout the book, the numerical simulation is performed using the rigorous solution of Maxwell’s equations based on a Finite-Difference Time-Domain (FDTD) approach, which makes the results of modeling highly reliable. The photonic components, including optical metasurfaces, discussed in the book have been implemented using state-of-the-art techniques of electron beam writing and reactive ion-beam etching of microrelief. Two chapters are concerned with photonics hot spots, which deal with the control of light by means of optical metasurfaces and the generation of an energy backflow in the region of sharp focus of a laser beam. Another hot topic is diffractive polarization converters implemented as subwavelength diffraction gratings to convert polarization of light. By way of illustration, such converters are shown to perform linear-to-radial or linear-to-azimuthal polarization conversion. The book describes advanced photonic components fabricated by the authors to perform sharp focusing of light, including binary zone plates, binary axicons, a planar photonic crystal lens, diffraction polarization converters, and metalenses. This book is a must-have for individuals and institutions studying cutting edge optics.
Author: Victor V. Kotlyar
Publisher: CRC Press
ISBN: 1000711250
Category : Technology & Engineering
Languages : en
Pages : 323
Get Book Here
Book Description
Readers will learn in which ways light can be "confined" within a subwavelength region smaller than half a wavelength. Strictly within the focal spot, all degrees of freedom of light interact and manifest themselves in a dramatic way. The size and shape of the focal spot and the magnitude of side-lobes depend on the polarization state alongside phase and amplitude distributions of a light beam. Readers will learn techniques in which inhomogeneously (i.e., azimuthally and radially) polarized optical beams can be focused. In sharp focus, exotic phenomena can occur, including the negative propagation of light and a toroidal optical flow. Throughout the book, the numerical simulation is performed using the rigorous solution of Maxwell’s equations based on a Finite-Difference Time-Domain (FDTD) approach, which makes the results of modeling highly reliable. The photonic components, including optical metasurfaces, discussed in the book have been implemented using state-of-the-art techniques of electron beam writing and reactive ion-beam etching of microrelief. Two chapters are concerned with photonics hot spots, which deal with the control of light by means of optical metasurfaces and the generation of an energy backflow in the region of sharp focus of a laser beam. Another hot topic is diffractive polarization converters implemented as subwavelength diffraction gratings to convert polarization of light. By way of illustration, such converters are shown to perform linear-to-radial or linear-to-azimuthal polarization conversion. The book describes advanced photonic components fabricated by the authors to perform sharp focusing of light, including binary zone plates, binary axicons, a planar photonic crystal lens, diffraction polarization converters, and metalenses. This book is a must-have for individuals and institutions studying cutting edge optics.
Author: Victor V. Kotlyar
Publisher: Springer Nature
ISBN: 3031646835
Category :
Languages : en
Pages : 290
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Book Description
Author: Victor V. Kotlyar
Publisher: Springer
ISBN: 9783031646829
Category : Science
Languages : en
Pages : 0
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Book Description
This book explores the optical Hall effect in the sharp focus of laser light. It builds upon the established theory of Richards-Wolf (1959), providing numerous real-world examples that illustrate both spin and orbital Hall effects near the focal point. Within the focal zone, distinct regions of left and right circular polarization emerge, showcasing the orbital Hall effect. This effect becomes apparent when localized areas within the focal plane experience transverse energy flow, rotating either clockwise or counterclockwise. The spin Hall effect, a fundamental occurrence, is demonstrated when a linearly polarized Gaussian beam is concentrated. Furthermore, the book reveals spin and orbital Hall effects in light fields with nonuniform linear polarization, where the polarization direction varies within the beam cross section. While the optical or photonic Hall effect has been recognized since 2004, a comprehensive monograph detailing its focal dynamics has been lacking until now. Drawing from the cohesive theoretical framework of the Richards-Wolf theory, this book offers specific examples and results from computer modeling. It equips readers with analytical relations for calculating energy and spin fluxes near a sharp focus across various initial light vector fields. Designed for a diverse audience, including scientists, engineers, and students in optics and photonics, this book serves as a valuable resource. It caters to undergraduate and graduate students in applied mathematics, physics, informatics, and optics, and can also benefit researchers and professionals in the field. Moreover, the book holds potential as a foundational text for advanced graduate courses
Author: Dominic Mann
Publisher:
ISBN: 9781521371077
Category :
Languages : en
Pages : 35
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Book Description
Learn How to Develop Laser-Like Focus, Concentrate on Demand, and Achieve the Extraordinary Results You Want... If you're sick of "being busy being busy" and wish you could stop feeling stressed, overwhelmed, and defeated and instead start getting the real results you want, then this book is for you... Learn the tips, tricks, and techniques used by the world's most elite performers Did you know that Navy SEALs often take special supplements to get themselves into a state of intense focus before dangerous missions?Did you know Picasso would work after sunset, using spotlights to light up his artwork so that everything else would be dark and he could fully immerse himself in his paintings in a trance-like state of lucid focus?The world's most elite performers know that intense focus is the key to performing at the very apex of their abilities. And after reading this book, you too will be able to focus with intensity and perform at your peak. How will you learn to develop laser-like focus? Inside the book: What Elon Musk can teach you about focus How to use the semi-barbaric "butt-in-chair method" for laser-like focus How to get more done by working less (seriously) How to develop unbreakable concentration... by flying on an imaginary airplane How to create "islands of focus" The secret to eliminating distractions And much more... 15+ ways to get the most out of your every waking minute Inside the book: Why your diet is giving you brain fog and making you tired and unfocused (and exactly what foods you need to eat for razor-sharp focus and sustained concentration) Why you should set "macro goals" and "micro quotas" The 3 steps to laser-like focus 6 foolproof techniques for rock-solid concentration The optimal work-to-break ratio for maximum productivity and focus (scientifically proven) And much, much more... To 10X your focus and consistently conquer your to-do list, scroll up to the top of this page and click BUY NOW.
Author: Frank J. Duarte
Publisher: Academic Press
ISBN: 0080543316
Category : Technology & Engineering
Languages : en
Pages : 287
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Book Description
Chapters will provide self-contained treatment of the topic as much as possible to allow the reader to go directly to the appropriate chapter to deal with a particular topic of concern. This sharp focus is necessary to maintain the emphasis, and to make this a practical reference. The knowledge and experience will integrate aspects of laser oscillators, laser amplifiers, laser systems, engineering of rugged laser cavities, design and engineering of laser-based instrumentation, and design of highly reliable laser systems for material processing applications. - Provides a sharp focus practical aspects of reference material - Offers an approach that will be simple, direct, and focused only on lasers and optics - Integrates aspects of laser oscillators, laser amplifiers, laser systems, engineering of rugged laser cavities, design and engineering of laser-based instrumentation, and design of highly reliable laser systems for material processing applications
Author:
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 588
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Book Description
Author: Max Maier
Publisher:
ISBN:
Category :
Languages : de
Pages : 12
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Book Description
Author:
Publisher:
ISBN:
Category : Fiber optics
Languages : en
Pages : 720
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
We propose to exploit a self-focusing effect in the atmosphere to assist delivering powerful laser beams from orbit to the ground. We demonstrate through numerical modeling that if the self-focusing length is comparable with the atmosphere height the self-focusing can reduce the spot size on the ground well below the diffraction limited one without beam quality degradation. The use of light self-focusing in the atmosphere can greatly relax the requirements for the orbital optics and ground receivers.
Author: Delton T. Horn
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 184
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Book Description
