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design of an expander lens for an MWIR zoom camera using the third-order aberration analysis 23

Design of an expander lens for an MWIR zoom camera using the...

Conference on current developments in Lens design and optical engineering XXIII Part of SPIE Optics and Photonics Conference

作者： Yun, Min-Seok Ryu, Tae-Sik Park, Sung-Chan Dankook Univ Dept Phys 119 Dandae Ro Cheonan Si 31116 Chungcheongnam South Korea

ISBN: (纸本)9781510654198;9781510654181

This study presents the methods for designing an expander lens for an MWIR zoom lens through the third-order aberration analysis and evaluating the optical zoom system. This expander lens is used to enlarge the focal lengths of an original main zoom lens two times, which unfortunately doubles the aperture size of the expander lens elements. Thus, this extended apertures significantly generate the aberrations of a zoom system. To solve the problem, an expander lens has been designed using the third-order aberration analysis numerically. Since an MWIR optical system uses a cooled detector, this zoom system should be designed to eliminate the narcissus effect. Using this design approach, we efficiently obtain an expander lens for an MWIR zoom system satisfying the current requirements.

关键词： Zoom lenses Monochromatic aberrations optical spheres Mid-IR Chemical elements Lens design Transparent conductors Modulation transfer functions Spherical lenses Infrared radiation

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Simultaneous Multiple Surfaces method applied to infrared lenses 23

Simultaneous Multiple Surfaces method applied to infrared le...

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Conference on current developments in Lens design and optical engineering XXIII Part of SPIE Optics and Photonics Conference

作者： Mayeur, T. Volatier, J. B. Druart, G. Tartas, E. Durand, A. Cau, F. Off Natl Etud & Rech Aerosp 6 Chemin Vauve Granges F-91120 Palaiseau France Lynred 364 Route Valence F-38113 Veurey Voroize France Safran Elect & Def 100 Ave Paris F-91300 Massy France

ISBN: (纸本)9781510654198;9781510654181

In optical design, the designer's experience is critical. Indeed, an experienced optical designer will often choose a better starting point for optimization than an inexperienced one. Most of the time, lens design software use a local optimization algorithm, which is why the starting point is so important to get an excellent optical system. We present here an alternative to the classical optical design method and a solution to reduce the impact of the designer's experience. Our alternative couples the Simultaneous Multiple Surfaces (SMS) method, introduced by Benitez and Minano with optimization in Zemax OpticStudio. The SMS method is a direct construction method of optical systems without optical aberrations for as many field points as the system contains surfaces. This method can deal with both aspheric and freeform optical systems depending on the dimension of the method implemented. Our implementation of the SMS method can design optical systems with three surfaces. We use the SMS method to define a freeform system with an F-number of 0.85. Then, we use this fast freeform system as a starting point to perform further optimization in Zemax OpticStudio. Finally, we achieve to design two diffraction-limited freeform systems, one over a square field of view of +/- 30 degrees and another over a rectangular field of view of +/- 33 degrees x +/- 26 degrees.

关键词： Simultaneous Multiple Surfaces freeform surfaces Cartesian oval automated method optical design

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Flexible Transparent Electrochemical Energy Conversion and Storage: From Electrode Structures to Integrated Applications

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Energy & Environmental Materials 2023年第1期6卷 43-71页

作者： Yanli Zhao Huaizhi Liu Yu Yan Tianwei Chen Huihuang Yu Lucky Ogheneakpobo Ejeta Guanhua Zhang Huigao Duan National Engineering Research Center for High-Efficiency Grinding State Key Laboratory of Advanced Design and Manufacturing for Vehicle BodyCollege of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China

The rapid progress of flexible electronics tremendously stimulates the urgent demands for the matching power supply systems. Flexible transparent electrochemical energy conversion and storage devices (FT–EECSDs), with endurable mechanical flexibility, outstanding optical transmittance, excellent electrochemical performance, and additional intelligent functions, are considered as preferable energy supplies for future self-powered flexible electronic systems. A comprehensive review of the reasonable design of flexible transparent electrode and recent progress on the FT–EECSDs is presented herein. The manufacturing techniques of generally classified three types of flexible transparent electrodes are systematically summarized. Emphasis is given to the recent developments in the transparent solid-state electrolyte, flexible transparent energy conversion, and storage devices. The standard evaluation methods and reasonable evaluation parameters to evaluate the flexibility and transparency of FT–EECSDs are highlighted. Additionally, the typical integrated applications of FT–EECSDs are also described. Finally, the current challenges and a future perspective on the research and development direction are further outlined.

关键词： electrochemical energy conversion and storage flexible electronics flexibletransparent elect

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Research progress of spectrometers based on metalenses

Research progress of spectrometers based on metalenses

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2022 Applied Optics and Photonics China: optical Spectroscopy and Imaging, AOPC 2022

作者： Ke, Yachen Zhang, Chunyu Jing, Juanjuan Zhou, Jinsong Wei, Lidong Feng, Lei Key Laboratory of Computational Optical Imaging Technology Aerospace Information Research Institute Chinese Academy of Sciences Beijing100094 China School of Optoelectronics University of Chinese Academy of Sciences Beijing100049 China

ISBN: (纸本)9781510662308

A spectrometer is a type of apparatus that measures the intensity of spectra at different wavelengths utilizing dispersive components and detectors. In recent years, with the increase of application scenarios and demands in scientific research and industrial fields, researchers have make efforts in the miniaturization of spectrometers and there have been many new developments. Among them, the application of metalenses in spectrometers has made great progress. As a kind of two-dimensional subwavelength microstructure, metalens can flexibly control the phase, amplitude and polarization of electromagnetic wave. On account of its small size, light weight and planar characteristics, researches have been conducted to replace conventional optical components with metalens. In this paper, we introduce the design principle of metalenses, and summerize different kinds of miniaturized spectrometers using metalenses, focusing on the dispersion mechanism, optical characteristics and performance of efficiency of these spectrometer system. These applications of metalenses to spectrometers take advantage of their refraction, differaction and polarization characteristics and can be beneficial to exploit other complex functions. We discuss current challenges, potential application fields and promising future developments of metalens design for spectral analysis. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Spectrum analysis

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Multichannel-optical prism 23

Multichannel-optical prism

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Conference on current developments in Lens design and optical engineering XXIII Part of SPIE Optics and Photonics Conference

作者： Ryzhikov, Lev 136 Newtown Ave Unit 7 Norwalk CT 06851 USA

ISBN: (纸本)9781510654198;9781510654181

currently, many optical tests required simultaneous measurement values of various technological or metrological parameters. This demand primarily applies to pieces or parts of products that are under variable load during operation. These technological measurements primarily relate to production and metrological works. Examples include optical testing of deformations of parts (e.g., plates) under variable load, shifts of various components of high-precision equipment, and, of course, various metrological measurements of high-precision equipment, such as lithographic machines and different types of measuring and control devices. Simultaneous measurement of the same parameter in different parts of the product allows for to determination of the error (e.g., deformation or alignment error) in object position during operation. Observation and analysis of the position of specific points on the object allow one to judge deviations both in position and deformation of the measured surface. The proposed multichannel optical prism can simultaneously observe several points located on the different parts of the object, as well as monitor their movements and deformations in working conditions. This information allows you to determine the operating conditions of various structural elements during real operation. The multichannel prism should be built into the optical circuit of the measuring (metrological) device. The use of prisms of this type allows simultaneous observation of the movement (deformation) of various parts of the observed objects. Some examples of such kinds of optical devices with a build-in multichannel prism will be discussed below.

关键词： Prisms optical components Measurement devices Metrology Channel projecting optics optical alignment optical circuits optical testing Relays Sensors

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TAILORED IMAGING AND SENSING TECHNOLOGIES ENABLED BY 3D RAPID MICRO- TO NANO-FABRICATION

TAILORED IMAGING AND SENSING TECHNOLOGIES ENABLED BY 3D RAPI...

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ASME International design engineering Technical Conferences / 43rd Annual Computers and Information in engineering Conference (IDETC-CIE) / 17th International Conference on Microand Nanosystems (MNS)

作者： Salerni, Anthony Ruiz-Cadalso, Daniel Furlong, Cosme Worcester Polytech Inst Mech & Mat Engn Dept Ctr Holog Studies & Laser MicromechaTron CHSLT Worcester MA 01609 USA

ISBN: (纸本)9780791887370

Micro- to nano-scale additive manufacturing has enabled the realization of 3D microstructures at sub-micron resolution for complex miniaturized optical and mechanical systems. There is a growing demand for integrable technologies and miniaturization in applications from biomedical diagnostics and environmental sensing to high-precision industrial tasks. The ability to rapidly prototype facilitates the development of custom-tailored components for such specialized applications. This paper presents three case studies highlighting developments utilizing two-photon direct laser writing (TP-DLW). The aim of this work is to provide a comprehensive overview of the current state-of-the-art fabrication tool for the purpose of miniaturizing imaging and sensing technologies.

关键词： miniaturization additive manufacturing optical fibers spectroscopy micro-force sensors

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design of projection-based augmented reality system using holographic screen display 23

Design of projection-based augmented reality system using ho...

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Conference on current developments in Lens design and optical engineering XXIII Part of SPIE Optics and Photonics Conference

作者： Nishikawa, Jun Nakamura, Tomoharu Sony Grp Corp R&D Ctr Atsugi TEC 4-14-1 Asahi Cho Atsugi Kanagawa 2430014 Japan

ISBN: (纸本)9781510654198;9781510654181

Holographic display elements (HOEs) with a high diffraction efficiency and size enlargement have been developed since 2019. To achieve high brightness and low haze, unprecedented optical systems have been proposed with a uniform chief ray angle of 0 degrees in the x-section and 70 degrees in the y-section of the HOEs. A 360 degrees cylindrical holographic screen display (CHSD) was obtained by providing a large tilt to the surface shape near the optical axis. This was done using a first-order odd aspherical coefficient for the light flux from a refractive optical system (RO). A flat holographic screen display (FHSD) is a compact, high-performance display that uses three decentered and tilted freeform mirrors to route light flux from the RO in a ball-like form. Prototyping also proposes the possibility of an augmented reality system that takes advantage of the high transparency. The design for further miniaturization while maintaining optical performance was also discussed, in which the size of the first mirror was reduced by reducing the half-field angle of the RO to approximately 6 degrees. Furthermore, by increasing the negative power of the second mirror, the small size could be maintained The size of the last mirror was dependent on the screen size and could not be reduced. By laying down the posture of this mirror, we were able to halve the size reduction in the vertical direction. In this paper, lens designs for CHSDs and FHSDs are reported. The potential of this display is also discussed.

关键词： Holographic optical elements augmented reality display freeform mirror projection lens lens design

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Metamaterials:From fundamental physics to intelligent design

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Interdisciplinary Materials 2023年第1期2卷 5-29页

作者： Ji Chen Shanshan Hu Shining Zhu Tao Li National Laboratory of Solid State Microstructures Key Laboratory of Intelligent Optical Sensing and ManipulationsJiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied SciencesSchool of PhysicsNanjing UniversityNanjingChina National Mobile Communications Research Laboratory School of Information Science and EngineeringFrontiers Science Center for Mobile Information Communication and SecuritySoutheast UniversityNanjingChina

Metamaterials are artificial structures with the ability to efficiently control light-field,attracting intensive attention in the past few *** have studied the working principles,design strategies,and fabrication methods of metamaterials,making this field cross and combine with many disciplines,including physics,material science,electronics,and *** recent years,with the rapid development of high-efficiency and multifunctional metasurfaces,which are a two-dimensional version of metamaterials,great efforts have been made to push this material to practical *** particular,the introduction of artificial intelligent(AI)algorithms enables metamaterials-based photonic devices that exhibit excellent performances and intelligent *** this review,we first introduce the basic concepts,working principles,design methods,and applications of metamaterials,and then focus on the rapidly developing metamaterials research combined with AI ***,we conclude this review with personal perspectives on the current problems and future directions of metamaterials research and developments.

关键词： artificial intelligence artificial neural network inverse design metamaterial metasurface

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Ultrafast Plasmonics for All-optical Switching and Pulsed Lasers

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Ultrafast Science 2024年第4期4卷 29-61页

作者： Muhammad Aamir Iqbal Wang Lin Wang Pengyun Jianrong Qiu Xiaofeng Liu School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China State Key Lab of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China

Surface plasmon resonances(SPRs)are often regarded as the collective oscillations of charge carriers localized at the dielectric–metal interface that display an ultrafast response upon light *** recent developments in the fabrication and characterization of plasmonic nanostructures have stimulated continuous effects in the search for their potential applications in the photonic *** on the role of plasmonics in photonics,this review covers recent advances in ultrafast plasmonic materials with a prime focus on all-optical *** phenomena of plasmonic light–matter interaction and plasmon dynamics are discussed by elaborating on the ultrafast processes unraveled by both experimental and theoretical methods,along with a comprehensive illustration of leveraging ultrafast plasmonics for all-optical switching and pulse laser generation with a focus on device design and *** review is concluded with a brief highlight of the current progress and the potential future directions in ultrafast plasmonics.

关键词： Switching collective illustration

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Multibody dynamics optimization design for mechanical vibration control and vehicle suspension systems 3

Multibody dynamics optimization design for mechanical vibrat...

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3rd International Conference on Mechatronics and Mechanical engineering, ICMME 2024

作者： Tang, Yi Department of Basic Courses Officers College of PAP Sichuan Chengdu610213 China

ISBN: (纸本)9781510681651

Vehicle vibration reduction technology is of great significance in the modern automobile industry, as it directly affects ride comfort and driving stability. Researching and developing suspension optimization design methods based on multibody dynamics not only helps solve the problems faced by current vehicle vibration reduction technology, but also provides new ideas and methods for the development of future automobile technology. This article took vehicle suspension as the research object and conducted multibody dynamic optimization design on it. Firstly, this article elaborated on the research background and significance of vehicle vibration reduction technology, and summarized the important developments and challenges faced in this field. On this basis, this article combined mechanical vibration control with the design principles of vehicle suspension systems, and established a multibody dynamic optimization design method based on multibody systems. This article aims to improve the ride comfort and driving stability of the entire vehicle by optimizing the suspension structure and parameters to suppress vehicle vibration. The research results of this article provide new approaches and methods for the design of vehicle suspension structures and vibration reduction research. © 2024 SPIE.

关键词： Vibration analysis

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