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Low-intensity light beams carrying Orbital Angular Momentum (OAM), commonly known as vortex beams, have garnered significant attention due to promising applications in areas ranging from optical trapping to communication. In recent years,…

等离子体物理 · 物理学 2024-08-13 Yin Shi , Xiaomei Zhang , Alexey Arefiev , Baifei Shen

A standing-wave control field applied to a three-level atomic medium in a planar hollow-core photonic crystal waveguide creates periodic variations of linear and nonlinear refractive indexes of the medium. This property can be used for…

光学 · 物理学 2015-05-18 Chao Hang , V. V. Konotop

We describe new techniques in the construction of optical lattices to realize a coherent atom-based microscope, comprised of two atomic species used as target and probe atoms, each in an independently controlled optical lattice. Precise and…

A method to generate the optical vortex beam with arbitrary superposition of different orders of orbital angular momentum (OAM) on a photonic chip is proposed. The distributed Fourier holographic gratings are proposed to convert the…

光学 · 物理学 2018-12-05 Aiping Liu , Chang-Ling Zou , Xifeng Ren , Wen He , Mengze Wu , Guangcan Guo , Qin Wang

Magic windows (or mirrors) consist of optical devices with a surface deformation or thickness distribution devised in such a way to form a desired image. The associated image intensity distribution has been shown to be related to the…

Using Optical Orthogonal Frequency Multiplexing (O-OFDM), variable bandwidth channels can be created in Elastic Optical Networks (EON). This allows the use of spectrum more efficiently by allocating integral multiple of basic bandwidth…

网络与互联网体系结构 · 计算机科学 2022-12-09 Varsha Lohani , Anjali Sharma , Yatindra Nath Singh

Molecules present a versatile platform for quantum information science, and are candidates for sensing and computation applications. Robust spin-optical interfaces are key to harnessing the quantum resources of materials. To date,…

Active optics techniques on large telescopes and astronomical instrumentations provide high imaging quality. For ground-based astronomy, the co-addition of adaptive optics again increases angular resolution up to provide diffraction-limited…

天体物理仪器与方法 · 物理学 2019-01-18 Gerard R. Lemaitre

Vortices are topologically stable singularities at the center of a swirl of energy. Optical vortices are conventionally formed using diffractive optics or by bespoke optical elements. We report room temperature integrated lasers directly…

光学 · 物理学 2019-04-29 B. Bahari , L. -Y. Hsu , S. H. Pan , D. Preece , A. Ndao , A. El Amili , Y. Fainman , B. Kanté

Using molecular dynamics simulation with an angle-dependent Lennard-Jones potential, we study orientational glass with quadrupolar symmetry in mixtures of elliptic particles and circular impurities in two dimensions. With a mild aspect…

软凝聚态物质 · 物理学 2015-07-24 Kyohei Takae , Akira Onuki

Imaging is of great importance in everyday life and various fields of science and technology. Conventional imaging is achieved by bending light rays originating from an object with a lens. Such ray bending requires space-variant structures,…

光学 · 物理学 2023-10-02 Wenzhe Liu , Jingguang Chen , Tongyu Li , Zhe Zhang , Fang Guan , Lei Shi , Jian Zi , C. T. Chan

This work presents an efficient algorithm for generating statistically representative microstructures of particulate composites in periodic representative volume elements. The Swelling and Random Migration (SRM) algorithm combines…

计算工程、金融与科学 · 计算机科学 2026-05-19 Sergejs Tarasovs

Although the multi-antenna or so-called multiple-input multiple-output (MIMO) transmission has been the enabling technology for the past generations of radio-frequency (RF)-based wireless communication systems, its application to the…

信息论 · 计算机科学 2023-02-09 Shiyuan Sun , Weidong Mei , Fang Yang , Nan An , Jian Song , Rui Zhang

We present a simple one-pot co-assembly method for the synthesis of hierarchically structured pigment particles consisting of silica inverse-opal bricks that are doped with plasmonic absorbers. We study the interplay between the plasmonic…

A light beam carrying orbital angular momentum (OAM) is characterized by a helical phase-front that winds around the center of the beam. These beams have unique properties that have found numerous applications. In the field of data…

光学 · 物理学 2023-10-13 Julian Schulz , Georg von Freymann

The well-known relaxed theoretical minimum emittance (TME) cell is commonly used in the design of multi-bend achromat (MBA) lattices for the new generation of diffraction limited storage rings. But significantly lower emittance at moderate…

加速器物理 · 物理学 2019-02-07 B. Riemann , A. Streun

Current optical interferometers are affected by unknown turbulent phases on each telescope. In the field of radio-interferometry, the self-calibration technique is a powerful tool to process interferometric data with missing phase…

光学 · 物理学 2009-11-13 Serge Meimon , Laurent M. Mugnier , Guy Le Besnerais

Non-invasive morphological assessment is the cornerstone of oocyte and embryo selection in assisted reproductive technology, yet clinical practice remains limited by two-dimensional, qualitative microscopy. While three-dimensional (3D)…

Manipulating the way in which colloidal particles self-organise is a central challenge in the design of functional soft materials. Meeting this challenge requires the use of building blocks that interact with one another in a highly…

软凝聚态物质 · 物理学 2021-03-30 Joe G Donaldson , Peter Schall , Laura Rossi

High-resolution (HR) images are commonly downscaled to low-resolution (LR) to reduce bandwidth, followed by upscaling to restore their original details. Recent advancements in image rescaling algorithms have employed invertible neural…

图像与视频处理 · 电气工程与系统科学 2024-12-19 Jingwei Bao , Jinhua Hao , Pengcheng Xu , Ming Sun , Chao Zhou , Shuyuan Zhu